US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

NPK International

14.58

-0.0400-0.27%

Volume:146.93K

Turnover:2.15M

Market Cap:1.23B

PE:38.65

High:14.81

Open:14.53

Low:14.38

Close:14.62

52wk High:15.05

52wk Low:4.76

Shares:84.49M

Float Shares:80.35M

Volume Ratio:0.56

T/O Rate:0.18%

Dividend:- -

Dividend Rate:- -

EPS(TTM):0.3772

EPS(LYR):-1.7167

ROE:10.23%

ROA:7.22%

PB:3.69

PE(LYR):-8.49

Loading ...

Overview Company News Filings

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/NPKI/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"NPKI","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"NPKI\",,,,,undefined,":{"symbol":"NPKI","market":"US","secType":"STK","nameCN":"NPK International","latestPrice":14.58,"timestamp":1771606985519,"preClose":14.62,"halted":0,"volume":146932,"delay":0,"changeRate":-0.0027359781121750444,"floatShares":80353895,"shares":84494699,"eps":0.377192,"marketStatus":"Trading","change":-0.04,"latestTime":"02-20 12:03:06 EST","open":14.53,"high":14.81,"low":14.3773,"amount":2149619.861824,"amplitude":0.029596,"askPrice":14.63,"askSize":64,"bidPrice":14.57,"bidSize":10,"shortable":3,"etf":0,"ttmEps":0.377192,"tradingStatus":2,"nextMarketStatus":{"tag":"Post-Mkt","tradingStatus":3,"beginTime":1771621200000},"marketStatusCode":2,"adr":0,"exchange":"NYSE","adjPreClose":14.62,"preHourTrading":{"tag":"盘前","latestPrice":14.64,"preClose":14.62,"latestTime":"08:02 EST","volume":1,"amount":14.64,"timestamp":1771592579939,"change":0.02,"changeRate":0.001368,"amplitude":0},"postHourTrading":{"tag":"盘后","latestPrice":14.62,"preClose":14.62,"latestTime":"19:52 EST","volume":26647,"amount":389612.6545,"timestamp":1771548723341,"change":0,"changeRate":0,"amplitude":0.002052},"volumeRatio":0.556029,"impliedVol":0.9441,"impliedVolPercentile":0.9522},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"NPKI\",,,,,undefined,":{"symbol":"NPKI","floatShares":80353895,"roa":"7.22%","roe":"10.23%","lyrEps":-1.716677,"volumeRatio":0.556029,"shares":84494699,"dividePrice":0,"high":14.81,"amplitude":0.029596,"preClose":14.62,"low":14.3773,"week52Low":4.76,"pbRate":"3.69","psRate":"4.75","week52High":15.05,"institutionHeld":0.8143,"latestPrice":14.58,"committee":-0.72973,"eps":0.377192,"divideRate":0,"volume":146932,"delay":0,"ttmEps":0.377192,"open":14.53,"prevYearClose":11.92,"prevWeekClose":14.44,"prevMonthClose":13.81,"prevQuarterClose":11.92,"fiveDayClose":13.95,"twentyDayClose":14.18,"sixtyDayClose":11.52,"earningDate":1771948800000,"earningTime":"盘后"},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/NPKI\",params:#limit:5,,,undefined,":[{"date":"2026-02-25","symbol":"NPKI","type":"earning","reportTimeType":"post","market":"US","fiscalQuarterEnding":"2025/12","expectedEps":0.11,"defaultRemindTime":1772053200000,"name":null,"time":"Post Market","dateTimestamp":1771995600000,"actualEps":null},{"market":"US","date":"2025-10-30","symbol":"NPKI","fiscalQuarterEnding":"2025/09","expectedEps":0.07,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1761796800000,"reportTimeType":"post","actualEps":0.07},{"market":"US","date":"2025-08-05","symbol":"NPKI","fiscalQuarterEnding":"2025/06","expectedEps":0.09,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1754366400000,"reportTimeType":"post","actualEps":0.11},{"market":"US","date":"2025-05-01","symbol":"NPKI","fiscalQuarterEnding":"2025/03","expectedEps":0.08,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1746072000000,"reportTimeType":"post","actualEps":0.12},{"market":"US","date":"2025-02-26","symbol":"NPKI","fiscalQuarterEnding":"2024/12","expectedEps":0.08,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1740546000000,"reportTimeType":"post","actualEps":0.08}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"NPKI\",market:\"US\",,,undefined,":[],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"NPKI\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0,"buy":1,"hold":0,"sell":0,"strongSell":0,"meanLabel":"BUY","meanPercent":1,"analysts":5,"updateTime":1753333200000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/NPKI\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"NPKI","date":"2026-02-19","current":39.157776,"percent":0.99654,"low":-7.850522,"twenty":-5.251783,"median":-3.9657,"eighty":31.201505,"high":37.416231,"avg":5.048983,"sd":16.605325,"marketCap":1231932711},"quantilePoints":[{"date":"2024-12-20","current":-3.927725,"twenty":-3.927725,"median":-3.927725,"eighty":-3.927725,"marketCap":626240437},{"date":"2024-12-27","current":-4.025376,"twenty":-3.986316,"median":-3.9657,"eighty":-3.958105,"marketCap":641809951},{"date":"2025-01-03","current":-4.144727,"twenty":-4.082881,"median":-3.987401,"eighty":-3.9657,"marketCap":660839356},{"date":"2025-01-10","current":-3.987401,"twenty":-4.129537,"median":-4.025376,"eighty":-3.97004,"marketCap":635755140},{"date":"2025-01-17","current":-4.123026,"twenty":-4.116516,"median":-4.030801,"eighty":-3.97004,"marketCap":657379464},{"date":"2025-01-24","current":-4.133877,"twenty":-4.142557,"median":-4.057926,"eighty":-3.978721,"marketCap":659109410},{"date":"2025-01-31","current":-3.91145,"twenty":-4.142557,"median":-4.036226,"eighty":-3.93966,"marketCap":623645518},{"date":"2025-02-07","current":-3.667324,"twenty":-4.131707,"median":-3.990114,"eighty":-3.89409,"marketCap":584721734},{"date":"2025-02-14","current":-3.775824,"twenty":-4.119771,"median":-3.976551,"eighty":-3.758464,"marketCap":602021194},{"date":"2025-02-21","current":-3.640198,"twenty":-4.106751,"median":-3.9657,"eighty":-3.732424,"marketCap":580396869},{"date":"2025-02-28","current":-3.456143,"twenty":-4.101326,"median":-3.927725,"eighty":-3.678174,"marketCap":519326916},{"date":"2025-03-07","current":-3.248774,"twenty":-4.090476,"median":-3.88975,"eighty":-3.564248,"marketCap":488167301},{"date":"2025-03-14","current":-3.427342,"twenty":-4.074201,"median":-3.802949,"eighty":-3.502225,"marketCap":514999191},{"date":"2025-03-21","current":-3.358219,"twenty":-4.041651,"median":-3.775824,"eighty":-3.444897,"marketCap":504612653},{"date":"2025-03-28","current":-3.473423,"twenty":-4.036226,"median":-3.724286,"eighty":-3.444622,"marketCap":521923550},{"date":"2025-04-04","current":-3.173891,"twenty":-4.025376,"median":-3.683599,"eighty":-3.39278,"marketCap":476915217},{"date":"2025-04-11","current":-2.960762,"twenty":-3.992826,"median":-3.653761,"eighty":-3.358219,"marketCap":444890058},{"date":"2025-04-17","current":-3.127809,"twenty":-3.988486,"median":-3.597635,"eighty":-3.338634,"marketCap":469990858},{"date":"2025-04-25","current":-3.363979,"twenty":-3.987401,"median":-3.564248,"eighty":-3.312137,"marketCap":505478198},{"date":"2025-05-02","current":-3.468599,"twenty":-3.978721,"median":-3.536955,"eighty":-3.312137,"marketCap":511798711},{"date":"2025-05-09","current":-4.617035,"twenty":-4.027546,"median":-3.564248,"eighty":-3.316745,"marketCap":681252768},{"date":"2025-05-16","current":-4.743058,"twenty":-4.092646,"median":-3.597635,"eighty":-3.327113,"marketCap":699847757},{"date":"2025-05-23","current":-4.559752,"twenty":-4.136047,"median":-3.667324,"eighty":-3.329417,"marketCap":672800500},{"date":"2025-05-30","current":-4.622763,"twenty":-4.165342,"median":-3.683599,"eighty":-3.332874,"marketCap":682097995},{"date":"2025-06-06","current":-4.788885,"twenty":-4.398213,"median":-3.724286,"eighty":-3.338634,"marketCap":706609571},{"date":"2025-06-13","current":-4.920637,"twenty":-4.549441,"median":-3.775824,"eighty":-3.340938,"marketCap":726049786},{"date":"2025-06-20","current":-4.914908,"twenty":-4.610161,"median":-3.802949,"eighty":-3.343242,"marketCap":725204560},{"date":"2025-06-27","current":-4.955007,"twenty":-4.641094,"median":-3.876187,"eighty":-3.346698,"marketCap":731121147},{"date":"2025-07-03","current":-5.052388,"twenty":-4.713271,"median":-3.919588,"eighty":-3.349002,"marketCap":745490002},{"date":"2025-07-11","current":-4.937822,"twenty":-4.77972,"median":-3.93315,"eighty":-3.358219,"marketCap":728585467},{"date":"2025-07-18","current":-4.863353,"twenty":-4.80607,"median":-3.971126,"eighty":-3.359371,"marketCap":717597519},{"date":"2025-07-25","current":-5.178412,"twenty":-4.823255,"median":-3.987401,"eighty":-3.367435,"marketCap":764084991},{"date":"2025-08-01","current":-5.166955,"twenty":-4.849606,"median":-4.030801,"eighty":-3.382412,"marketCap":762394537},{"date":"2025-08-08","current":-5.166632,"twenty":-4.888558,"median":-4.074201,"eighty":-3.388172,"marketCap":759050566},{"date":"2025-08-15","current":-5.747088,"twenty":-4.897723,"median":-4.104038,"eighty":-3.399692,"marketCap":844327660},{"date":"2025-08-22","current":-5.747088,"twenty":-4.919491,"median":-4.133877,"eighty":-3.430798,"marketCap":844327660},{"date":"2025-08-29","current":-5.99996,"twenty":-4.936676,"median":-4.161002,"eighty":-3.444677,"marketCap":881478077},{"date":"2025-09-05","current":-6.109154,"twenty":-4.960735,"median":-4.182702,"eighty":-3.444897,"marketCap":897520302},{"date":"2025-09-12","current":-6.132143,"twenty":-5.040932,"median":-4.347804,"eighty":-3.444897,"marketCap":900897613},{"date":"2025-09-19","current":-6.344785,"twenty":-5.126857,"median":-4.528246,"eighty":-3.456143,"marketCap":932137736},{"date":"2025-09-26","current":-6.459727,"twenty":-5.172683,"median":-4.559752,"eighty":-3.461903,"marketCap":949024289},{"date":"2025-10-03","current":-6.488462,"twenty":-5.229967,"median":-4.608442,"eighty":-3.468599,"marketCap":953245928},{"date":"2025-10-10","current":-6.356279,"twenty":-5.666629,"median":-4.622763,"eighty":-3.473423,"marketCap":933826391},{"date":"2025-10-17","current":-6.614898,"twenty":-5.747088,"median":-4.654269,"eighty":-3.496464,"marketCap":971821136},{"date":"2025-10-24","current":-7.344778,"twenty":-5.925248,"median":-4.720145,"eighty":-3.502225,"marketCap":1079050749},{"date":"2025-10-31","current":34.371463,"twenty":-5.971224,"median":-4.725873,"eighty":-3.502225,"marketCap":1135564402},{"date":"2025-11-07","current":32.480255,"twenty":-5.948236,"median":-4.685775,"eighty":-3.461903,"marketCap":1073082677},{"date":"2025-11-14","current":30.741155,"twenty":-5.930995,"median":-4.639949,"eighty":-3.444622,"marketCap":1015626281},{"date":"2025-11-21","current":28.66958,"twenty":-5.925248,"median":-4.617035,"eighty":-3.38126,"marketCap":947185575},{"date":"2025-11-28","current":31.07363,"twenty":-5.92065,"median":-4.59985,"eighty":-3.355915,"marketCap":1026610592},{"date":"2025-12-05","current":33.094055,"twenty":-5.78157,"median":-4.551159,"eighty":-3.339786,"marketCap":1093361405},{"date":"2025-12-12","current":33.503256,"twenty":-5.747088,"median":-4.519653,"eighty":-3.316745,"marketCap":1106880556},{"date":"2025-12-19","current":31.53398,"twenty":-5.747088,"median":-4.27339,"eighty":-3.304073,"marketCap":1041819638},{"date":"2025-12-26","current":31.201505,"twenty":-5.719502,"median":-4.182702,"eighty":-3.199236,"marketCap":1030835327},{"date":"2026-01-02","current":30.485405,"twenty":-5.696513,"median":-4.161002,"eighty":-3.141634,"marketCap":1007176812},{"date":"2026-01-09","current":31.99433,"twenty":-5.682721,"median":-4.133877,"eighty":-3.006844,"marketCap":1057028684},{"date":"2026-01-16","current":35.242356,"twenty":-5.670077,"median":-4.104038,"eighty":-2.874359,"marketCap":1164336952},{"date":"2026-01-23","current":36.265356,"twenty":-5.655135,"median":-4.082339,"eighty":29.523785,"marketCap":1198134831},{"date":"2026-01-30","current":35.370231,"twenty":-5.578124,"median":-4.036226,"eighty":30.546785,"marketCap":1168561687},{"date":"2026-02-06","current":35.012181,"twenty":-5.430998,"median":-3.990114,"eighty":30.945755,"marketCap":1156732429},{"date":"2026-02-13","current":35.677131,"twenty":-5.317229,"median":-3.976551,"eighty":31.058285,"marketCap":1178701051},{"date":"2026-02-19","current":37.288356,"twenty":-5.251783,"median":-3.9657,"eighty":31.201505,"marketCap":1231932711}],"updateTime":1771601310258},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"NPKI\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"20445315","market":"us","labels":[],"media":"sec.gov","original_id":"AN195004725009249-NPKI","pdf_url":"","pub_time":1763960400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NPKI","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000195004725009249/0001950047-25-009249-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000195004725009249/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEJ6xEag1VR67zARy5","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-11-24 13:00","pubTimestamp":1763960400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20444501","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000143-NPKI","pdf_url":"","pub_time":1763960400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000143/0000071829-25-000143-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.01: Completion of Acquisition or Disposition of Assets;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-2.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000143/a20258knov24-exhibit21.htm","primary":true,"translateUrl":"","linkName":"a20258knov24-exhibit21.htm","type":"EX-2.1","id":"NTFILE3vfpE6Gp6UofuDjQ","market":"us","size":1000295},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000143/nr-20251124.htm","primary":false,"translateUrl":"","linkName":"nr-20251124.htm","type":"8-K","id":"NTFILE843seZ9vBWJjYAR5","market":"us","size":33607},{"description":"EX-99.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000143/a20258knov24-exhibit991.htm","primary":false,"translateUrl":"","linkName":"a20258knov24-exhibit991.htm","type":"EX-99.1","id":"NTFILE8iDq4mYn2AywhhUR","market":"us","size":11092},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000143/npklogoa.jpg","primary":false,"translateUrl":"","linkName":"npklogoa.jpg","type":"GRAPHIC","id":"NTFILEA9DSThuYiQoXes3y","market":"us","size":6518},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000143/nr-20251124_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20251124_g1.jpg","type":"GRAPHIC","id":"NTFILEEmHmLSpEFZMsoa5y","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-11-24 13:00","pubTimestamp":1763960400,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.01: Completion of Acquisition or Disposition of Assets;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20400099","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000139-NPKI","pdf_url":"","pub_time":1762923600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000139/0000071829-25-000139-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000139/nr-20251110_g1.jpg","primary":true,"translateUrl":"","linkName":"nr-20251110_g1.jpg","type":"GRAPHIC","id":"NTFILEGqr6oNmAeeJUo49n","market":"us","size":6518},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000139/nr-20251110.htm","primary":false,"translateUrl":"","linkName":"nr-20251110.htm","type":"8-K","id":"NTFILE6Lt33PEwHEsMnWYM","market":"us","size":27883}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-11-12 13:00","pubTimestamp":1762923600,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20356160","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000137-NPKI","pdf_url":"","pub_time":1761883200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/0000071829-25-000137-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent.htm","primary":true,"translateUrl":"","linkName":"npkq32025investorpresent.htm","type":"EX-99.1","id":"NTFILEGe6VADey95DXP9Dp","market":"us","size":48652},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/nr-20251031.htm","primary":false,"translateUrl":"","linkName":"nr-20251031.htm","type":"8-K","id":"NTFILE5odJuobYnDDQ7iNE","market":"us","size":32958},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent001.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent001.jpg","type":"GRAPHIC","id":"NTFILEBe6YmMBaesxbKJtU","market":"us","size":112662},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent002.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent002.jpg","type":"GRAPHIC","id":"NTFILE9xGzNLjKCUtKFnQT","market":"us","size":262298},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent003.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent003.jpg","type":"GRAPHIC","id":"NTFILEEeD666xFdKewvRon","market":"us","size":81874},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent004.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent004.jpg","type":"GRAPHIC","id":"NTFILEpj7HHAR9YFTvs5Rq","market":"us","size":111977},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent005.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent005.jpg","type":"GRAPHIC","id":"NTFILECFXBkvoarvSLs3Z4","market":"us","size":152888},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent006.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent006.jpg","type":"GRAPHIC","id":"NTFILECYUTtk4V5nXMfQ4z","market":"us","size":172414},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent007.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent007.jpg","type":"GRAPHIC","id":"NTFILEHRSDKWGnDPi6LMoA","market":"us","size":139573},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent008.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent008.jpg","type":"GRAPHIC","id":"NTFILE84dUtXh7jFA7QFtt","market":"us","size":135285},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent009.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent009.jpg","type":"GRAPHIC","id":"NTFILEARWdZWU5TzsMbgxd","market":"us","size":139902},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent010.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent010.jpg","type":"GRAPHIC","id":"NTFILE8H5sNe8xoXbbBpLT","market":"us","size":111624},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent011.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent011.jpg","type":"GRAPHIC","id":"NTFILE97QyXLTxCFypwSjG","market":"us","size":82097},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent012.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent012.jpg","type":"GRAPHIC","id":"NTFILE9A6ET48iENxtqRQN","market":"us","size":190175},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent013.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent013.jpg","type":"GRAPHIC","id":"NTFILECyc4dpVt1mHpQNan","market":"us","size":70882},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent014.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent014.jpg","type":"GRAPHIC","id":"NTFILE5sN4ghcr4EG3zNXH","market":"us","size":79037},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent015.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent015.jpg","type":"GRAPHIC","id":"NTFILEG3sudABVr7n9m4id","market":"us","size":92164},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent016.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent016.jpg","type":"GRAPHIC","id":"NTFILEGGGF4Wc7LVQVLEYR","market":"us","size":71636},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent017.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent017.jpg","type":"GRAPHIC","id":"NTFILE5gaHWtoqqW7YSg3U","market":"us","size":84035},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent018.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent018.jpg","type":"GRAPHIC","id":"NTFILEFgJVrMkow8mN6TTF","market":"us","size":115708},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent019.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent019.jpg","type":"GRAPHIC","id":"NTFILE7bFJiF1CyHEmq81B","market":"us","size":143563},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent020.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent020.jpg","type":"GRAPHIC","id":"NTFILEEt7bF5PtxkGAGi7r","market":"us","size":107752},{"description":"","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent021.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent021.jpg","type":"GRAPHIC","id":"NTFILEDJPqY2yAhikphvcK","market":"us","size":174857},{"description":"","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent022.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent022.jpg","type":"GRAPHIC","id":"NTFILE77n4ebtzafUJ45cc","market":"us","size":77921},{"description":"","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent023.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent023.jpg","type":"GRAPHIC","id":"NTFILE51n41y5vXHjpER4p","market":"us","size":189952},{"description":"","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent024.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent024.jpg","type":"GRAPHIC","id":"NTFILEEjG8eoiZHFv6Btb4","market":"us","size":118417},{"description":"","seq":30,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent025.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent025.jpg","type":"GRAPHIC","id":"NTFILE8zghrNNbqhDgjPZb","market":"us","size":97202},{"description":"","seq":31,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent026.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent026.jpg","type":"GRAPHIC","id":"NTFILEAkodrFgzGEQQM3Kw","market":"us","size":105679},{"description":"","seq":32,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent027.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent027.jpg","type":"GRAPHIC","id":"NTFILEFW2XFrjhT3sJ79VD","market":"us","size":117487},{"description":"","seq":33,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent028.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent028.jpg","type":"GRAPHIC","id":"NTFILEBcygZZucv2kecyK2","market":"us","size":73192},{"description":"","seq":34,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent029.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent029.jpg","type":"GRAPHIC","id":"NTFILE4RfwnPP2MydHZYFm","market":"us","size":113305},{"description":"","seq":35,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent030.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent030.jpg","type":"GRAPHIC","id":"NTFILE7ErtsssRgKM2LQgN","market":"us","size":68039},{"description":"","seq":36,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent031.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent031.jpg","type":"GRAPHIC","id":"NTFILEstPw7u1nn8vQyKfG","market":"us","size":92843},{"description":"","seq":37,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent032.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent032.jpg","type":"GRAPHIC","id":"NTFILE42YLbkyosHvBM8Gx","market":"us","size":104022},{"description":"","seq":38,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent033.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent033.jpg","type":"GRAPHIC","id":"NTFILEEKgS2iimdBPQmFtX","market":"us","size":98560},{"description":"","seq":39,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/npkq32025investorpresent034.jpg","primary":false,"translateUrl":"","linkName":"npkq32025investorpresent034.jpg","type":"GRAPHIC","id":"NTFILE2Kg7u6CDDYhFx5Vx","market":"us","size":96721},{"description":"","seq":40,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000137/nr-20251031_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20251031_g1.jpg","type":"GRAPHIC","id":"NTFILE4rqDR8ayHRnUBorb","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-10-31 12:00","pubTimestamp":1761883200,"title_zh":"Form 8-K - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20355932","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000135-NPKI","pdf_url":"","pub_time":1761883200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"NPKI","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/0000071829-25-000135-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/nr-20250930.htm","primary":true,"translateUrl":"","linkName":"nr-20250930.htm","type":"10-Q","id":"NTFILEJ1xu38YjUp9krQcU","market":"us","size":890087},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/a2025q310qexhibit311.htm","primary":false,"translateUrl":"","linkName":"a2025q310qexhibit311.htm","type":"EX-31.1","id":"NTFILEGmx5Sg2rn4oRn5EZ","market":"us","size":8438},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/a2025q310qexhibit312.htm","primary":false,"translateUrl":"","linkName":"a2025q310qexhibit312.htm","type":"EX-31.2","id":"NTFILEA5ncJAEqcXXX2FRH","market":"us","size":8452},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/a2025q310qexhibit321.htm","primary":false,"translateUrl":"","linkName":"a2025q310qexhibit321.htm","type":"EX-32.1","id":"NTFILE6xSutbhSS36tFSnm","market":"us","size":4687},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/a2025q310qexhibit322.htm","primary":false,"translateUrl":"","linkName":"a2025q310qexhibit322.htm","type":"EX-32.2","id":"NTFILE9DtUwCEBffxYQaz3","market":"us","size":5014},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000135/nr-20250930_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250930_g1.jpg","type":"GRAPHIC","id":"NTFILEHv5KfLGZt9tCFVGW","market":"us","size":6518}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-10-31 12:00","pubTimestamp":1761883200,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20352560","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000132-NPKI","pdf_url":"","pub_time":1761855909000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/0000071829-25-000132-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000132/a2025q38k-erex991.htm","primary":true,"translateUrl":"","linkName":"a2025q38k-erex991.htm","type":"EX-99.1","id":"NTFILEEa8pBUSYoMgZTraM","market":"us","size":306073},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000132/nr-20251030.htm","primary":false,"translateUrl":"","linkName":"nr-20251030.htm","type":"8-K","id":"NTFILEBUTrFf4BBypYp4KY","market":"us","size":31310},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000132/npklogo.jpg","primary":false,"translateUrl":"","linkName":"npklogo.jpg","type":"GRAPHIC","id":"NTFILE7YDegNa5BhffsUFU","market":"us","size":6518},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000132/nr-20251030_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20251030_g1.jpg","type":"GRAPHIC","id":"NTFILE87d9tif8aHVGEPET","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-10-31 04:25","pubTimestamp":1761855909,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20230613","market":"us","labels":[],"media":"sec.gov","original_id":"AN195004725007636-NPKI","pdf_url":"","pub_time":1759291200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NPKI","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000195004725007636/0001950047-25-007636-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000195004725007636/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEtiT9Tb1JvJnRaq3j","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-10-01 12:00","pubTimestamp":1759291200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20034376","market":"us","labels":[],"media":"sec.gov","original_id":"AN195004725006264-NPKI","pdf_url":"","pub_time":1755835200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NPKI","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000195004725006264/0001950047-25-006264-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000195004725006264/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE4YJ57BLfdQuab7Ff","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-08-22 12:00","pubTimestamp":1755835200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20015979","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000123-NPKI","pdf_url":"","pub_time":1755662400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000123/0000071829-25-000123-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000123/nr-20250819_g1.jpg","primary":true,"translateUrl":"","linkName":"nr-20250819_g1.jpg","type":"GRAPHIC","id":"NTFILE3C2Jn87vMdeBsVnr","market":"us","size":6518},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000123/nr-20250819.htm","primary":false,"translateUrl":"","linkName":"nr-20250819.htm","type":"8-K","id":"NTFILEHobE2ZwrfC7axZau","market":"us","size":28300}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-08-20 12:00","pubTimestamp":1755662400,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19955691","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000119-NPKI","pdf_url":"","pub_time":1754452800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/0000071829-25-000119-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent.htm","primary":true,"translateUrl":"","linkName":"npkq22025investorpresent.htm","type":"EX-99.1","id":"NTFILE8NWJcRYVQd81fVZh","market":"us","size":44053},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/nr-20250806.htm","primary":false,"translateUrl":"","linkName":"nr-20250806.htm","type":"8-K","id":"NTFILEHuXaE8iWYyS7xZ68","market":"us","size":32952},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent001.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent001.jpg","type":"GRAPHIC","id":"NTFILEc25D3E1AzRARrkwx","market":"us","size":111335},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent002.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent002.jpg","type":"GRAPHIC","id":"NTFILEFJuLae6G3m3v5DsG","market":"us","size":53463},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent003.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent003.jpg","type":"GRAPHIC","id":"NTFILE3VmQogHGrkAnYkpp","market":"us","size":228064},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent004.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent004.jpg","type":"GRAPHIC","id":"NTFILE6WYyhCpwfyCv6UwV","market":"us","size":72183},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent005.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent005.jpg","type":"GRAPHIC","id":"NTFILEBXNR39wsQXEvkAdG","market":"us","size":111405},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent006.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent006.jpg","type":"GRAPHIC","id":"NTFILE7S4qwuFtGPvYVk5Z","market":"us","size":149961},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent007.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent007.jpg","type":"GRAPHIC","id":"NTFILE7rE1B9PZ4sJ7J666","market":"us","size":165224},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent008.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent008.jpg","type":"GRAPHIC","id":"NTFILECCgKUkPvL5Djun9M","market":"us","size":134022},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent009.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent009.jpg","type":"GRAPHIC","id":"NTFILE8Ycp7vSG1tchhBPz","market":"us","size":130727},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent010.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent010.jpg","type":"GRAPHIC","id":"NTFILE4GnNUmbZse1nT4Wp","market":"us","size":103772},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent011.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent011.jpg","type":"GRAPHIC","id":"NTFILEBdTMKYsHJzBrsGvA","market":"us","size":72773},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent012.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent012.jpg","type":"GRAPHIC","id":"NTFILE32mvXYmS3SYhnFzy","market":"us","size":174966},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent013.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent013.jpg","type":"GRAPHIC","id":"NTFILE8A1oqERHVFYvZJr1","market":"us","size":61439},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent014.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent014.jpg","type":"GRAPHIC","id":"NTFILE5Ymf4wJFDK2p7Gbp","market":"us","size":82614},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent015.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent015.jpg","type":"GRAPHIC","id":"NTFILE8gPpchHCT1UHimVA","market":"us","size":93924},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent016.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent016.jpg","type":"GRAPHIC","id":"NTFILE4Csmcryzh8oNtpiu","market":"us","size":69166},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent017.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent017.jpg","type":"GRAPHIC","id":"NTFILE2WfYR6C2PLHjea4q","market":"us","size":74528},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent018.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent018.jpg","type":"GRAPHIC","id":"NTFILErB42FVfUzLkBpSrN","market":"us","size":115213},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent019.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent019.jpg","type":"GRAPHIC","id":"NTFILEaKYWYPxCL95VpU45","market":"us","size":133455},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent020.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent020.jpg","type":"GRAPHIC","id":"NTFILEAXDJRwKmixoKfV23","market":"us","size":107688},{"description":"","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent021.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent021.jpg","type":"GRAPHIC","id":"NTFILE4gikv256nEkqCZ1M","market":"us","size":199216},{"description":"","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent022.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent022.jpg","type":"GRAPHIC","id":"NTFILEDV6wopcBmttHDCya","market":"us","size":69310},{"description":"","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent023.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent023.jpg","type":"GRAPHIC","id":"NTFILE9BYGc8mtpDBP9UAj","market":"us","size":181621},{"description":"","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent024.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent024.jpg","type":"GRAPHIC","id":"NTFILE7mUtrenuc2RzrkdR","market":"us","size":99566},{"description":"","seq":30,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent025.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent025.jpg","type":"GRAPHIC","id":"NTFILEHK2g47F4Y7NYMnah","market":"us","size":86846},{"description":"","seq":31,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent026.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent026.jpg","type":"GRAPHIC","id":"NTFILEH5VWoRgjdhQj7c91","market":"us","size":94288},{"description":"","seq":32,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent027.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent027.jpg","type":"GRAPHIC","id":"NTFILED3TnUFttEh1svwri","market":"us","size":105052},{"description":"","seq":33,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent028.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent028.jpg","type":"GRAPHIC","id":"NTFILE3FZt4nTh89YzBs6a","market":"us","size":113206},{"description":"","seq":34,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent029.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent029.jpg","type":"GRAPHIC","id":"NTFILE8zq6uuN5FMT5B32y","market":"us","size":76503},{"description":"","seq":35,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent030.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent030.jpg","type":"GRAPHIC","id":"NTFILE67NxVnW9spTvNQev","market":"us","size":88616},{"description":"","seq":36,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent031.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent031.jpg","type":"GRAPHIC","id":"NTFILEDvBwJugmo9Rzi5w7","market":"us","size":83355},{"description":"","seq":37,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/npkq22025investorpresent032.jpg","primary":false,"translateUrl":"","linkName":"npkq22025investorpresent032.jpg","type":"GRAPHIC","id":"NTFILEFSs5Zctgja88bk8T","market":"us","size":99187},{"description":"","seq":38,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000119/nr-20250806_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250806_g1.jpg","type":"GRAPHIC","id":"NTFILEGpcxoAwXpzr988Xx","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-08-06 12:00","pubTimestamp":1754452800,"title_zh":"Form 8-K - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19955263","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000116-NPKI","pdf_url":"","pub_time":1754452800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"NPKI","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/0000071829-25-000116-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/nr-20250630.htm","primary":true,"translateUrl":"","linkName":"nr-20250630.htm","type":"10-Q","id":"NTFILEEiuY5nRUFWqx5Usi","market":"us","size":878008},{"description":"EX-10.2","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit102.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit102.htm","type":"EX-10.2","id":"NTFILE6FzBg6P77NME5mBL","market":"us","size":65722},{"description":"EX-10.3","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit103.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit103.htm","type":"EX-10.3","id":"NTFILEC473sW9qgPBtT2gD","market":"us","size":50095},{"description":"EX-10.4","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit104.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit104.htm","type":"EX-10.4","id":"NTFILEATALUnFuoWYPa6eF","market":"us","size":79800},{"description":"EX-31.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit311.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit311.htm","type":"EX-31.1","id":"NTFILEHzbEkUyRX23XPoKh","market":"us","size":8436},{"description":"EX-31.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit312.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit312.htm","type":"EX-31.2","id":"NTFILE9L9PraDdjHVnXgA4","market":"us","size":8450},{"description":"EX-32.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit321.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit321.htm","type":"EX-32.1","id":"NTFILE5UcRTr7J7q1gcktn","market":"us","size":4680},{"description":"EX-32.2","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/a2025q210qexhibit322.htm","primary":false,"translateUrl":"","linkName":"a2025q210qexhibit322.htm","type":"EX-32.2","id":"NTFILEE1ybBvXXNNMiZkLx","market":"us","size":5007},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000116/nr-20250630_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250630_g1.jpg","type":"GRAPHIC","id":"NTFILE2qgeJ4ZkeP2JxCbL","market":"us","size":6518}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-08-06 12:00","pubTimestamp":1754452800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19950260","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000112-NPKI","pdf_url":"","pub_time":1754366400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000112/0000071829-25-000112-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000112/a2025q28k-erex991.htm","primary":true,"translateUrl":"","linkName":"a2025q28k-erex991.htm","type":"EX-99.1","id":"NTFILEDPAe5MVTF3umV3XS","market":"us","size":305166},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000112/nr-20250805.htm","primary":false,"translateUrl":"","linkName":"nr-20250805.htm","type":"8-K","id":"NTFILEE1oKHk1swfqYcN4n","market":"us","size":31296},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000112/npklogoa.jpg","primary":false,"translateUrl":"","linkName":"npklogoa.jpg","type":"GRAPHIC","id":"NTFILEDxz4d1SB9WXPpWsx","market":"us","size":6518},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000112/nr-20250805_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250805_g1.jpg","type":"GRAPHIC","id":"NTFILEBqWNo9EesgHaMAXS","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-08-05 12:00","pubTimestamp":1754366400,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19799044","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000105-NPKI","pdf_url":"","pub_time":1750651200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000105/0000071829-25-000105-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 1.02: Termination of a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000105/a20258kjun20-exhibit101.htm","primary":true,"translateUrl":"","linkName":"a20258kjun20-exhibit101.htm","type":"EX-10.1","id":"NTFILE8rorCGcr4hWu2EBr","market":"us","size":1625721},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000105/nr-20250620.htm","primary":false,"translateUrl":"","linkName":"nr-20250620.htm","type":"8-K","id":"NTFILE7kZTtVGbbfT9QyfE","market":"us","size":41898},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000105/nr-20250620_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250620_g1.jpg","type":"GRAPHIC","id":"NTFILE96ZD2oQNKBxc1BkY","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-06-23 12:00","pubTimestamp":1750651200,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 1.02: Termination of a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19777218","market":"us","labels":[],"media":"sec.gov","original_id":"AN195004725004403-NPKI","pdf_url":"","pub_time":1750046400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NPKI","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000195004725004403/0001950047-25-004403-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000195004725004403/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE5zh1mQpSnquqznTE","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-06-16 12:00","pubTimestamp":1750046400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19746140","market":"us","labels":[],"media":"sec.gov","original_id":"AN195004725003964-NPKI","pdf_url":"","pub_time":1749182400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NPKI","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000195004725003964/0001950047-25-003964-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000195004725003964/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE3KVf9PAASW66UNCw","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-06-06 12:00","pubTimestamp":1749182400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19653476","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000052-NPKI","pdf_url":"","pub_time":1747339932000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/0000071829-25-000052-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000052/nr-20250515_g1.jpg","primary":true,"translateUrl":"","linkName":"nr-20250515_g1.jpg","type":"GRAPHIC","id":"NTFILECEti6fQ6uAyYXATy","market":"us","size":6518},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000052/nr-20250515.htm","primary":false,"translateUrl":"","linkName":"nr-20250515.htm","type":"8-K","id":"NTFILE6dBgZD356Y1s1jvq","market":"us","size":51351}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-05-16 04:12","pubTimestamp":1747339932,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19594908","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000046-NPKI","pdf_url":"","pub_time":1746158400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/0000071829-25-000046-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent.htm","primary":true,"translateUrl":"","linkName":"npkq12025investorpresent.htm","type":"EX-99.1","id":"NTFILE62WWhFUHpvxP2zta","market":"us","size":43691},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/nr-20250502.htm","primary":false,"translateUrl":"","linkName":"nr-20250502.htm","type":"8-K","id":"NTFILE8PLrJAKk37vGF7HR","market":"us","size":33755},{"description":"null","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent001.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent001.jpg","type":"GRAPHIC","id":"NTFILE6xcSYTeNJpGTtdvf","market":"us","size":110043},{"description":"null","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent002.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent002.jpg","type":"GRAPHIC","id":"NTFILEAELoofhh3nMtjL3t","market":"us","size":53463},{"description":"null","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent003.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent003.jpg","type":"GRAPHIC","id":"NTFILE9e4nLmhBrqXQmcKQ","market":"us","size":228079},{"description":"null","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent004.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent004.jpg","type":"GRAPHIC","id":"NTFILECW4gefY6AKW9iQWQ","market":"us","size":72183},{"description":"null","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent005.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent005.jpg","type":"GRAPHIC","id":"NTFILE8M2pERxpSmC5XJ4V","market":"us","size":111634},{"description":"null","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent006.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent006.jpg","type":"GRAPHIC","id":"NTFILE7JyLMQFndEYdmLWw","market":"us","size":149924},{"description":"null","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent007.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent007.jpg","type":"GRAPHIC","id":"NTFILECMwYhkNuGpUNZb2F","market":"us","size":165224},{"description":"null","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent008.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent008.jpg","type":"GRAPHIC","id":"NTFILE25xr23AavgdGkhG8","market":"us","size":134022},{"description":"null","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent009.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent009.jpg","type":"GRAPHIC","id":"NTFILEHrHuNQnzXiYTWDv1","market":"us","size":117263},{"description":"null","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent010.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent010.jpg","type":"GRAPHIC","id":"NTFILE3wknHhALQR81H5AF","market":"us","size":103780},{"description":"null","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent011.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent011.jpg","type":"GRAPHIC","id":"NTFILE5TGGGCQZwZwwznLu","market":"us","size":72773},{"description":"null","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent012.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent012.jpg","type":"GRAPHIC","id":"NTFILEFMCohpKr5r9PKLiy","market":"us","size":180011},{"description":"null","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent013.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent013.jpg","type":"GRAPHIC","id":"NTFILEBKq6m8M5g4dZiR4X","market":"us","size":62713},{"description":"null","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent014.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent014.jpg","type":"GRAPHIC","id":"NTFILECKASknGnkVicgC54","market":"us","size":83461},{"description":"null","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent015.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent015.jpg","type":"GRAPHIC","id":"NTFILE4B4TnjZzuBjNszef","market":"us","size":101958},{"description":"null","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent016.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent016.jpg","type":"GRAPHIC","id":"NTFILEAxD5rM61aatV2VVN","market":"us","size":68884},{"description":"null","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent017.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent017.jpg","type":"GRAPHIC","id":"NTFILE6rjTGMuvPcfwkFF2","market":"us","size":74528},{"description":"null","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent018.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent018.jpg","type":"GRAPHIC","id":"NTFILE9TUZRawysJMESs4R","market":"us","size":113019},{"description":"null","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent019.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent019.jpg","type":"GRAPHIC","id":"NTFILEGu8uXoRLjGS9pc4K","market":"us","size":111720},{"description":"null","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent020.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent020.jpg","type":"GRAPHIC","id":"NTFILEkajbvba4ndeCPGzY","market":"us","size":100207},{"description":"null","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent021.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent021.jpg","type":"GRAPHIC","id":"NTFILE3Ycf22CX6EPoRrza","market":"us","size":188312},{"description":"null","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent022.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent022.jpg","type":"GRAPHIC","id":"NTFILED55Xfw5uoVtPTxHD","market":"us","size":69317},{"description":"null","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent023.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent023.jpg","type":"GRAPHIC","id":"NTFILE5mm89eHiV8rDo9KC","market":"us","size":181622},{"description":"null","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent024.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent024.jpg","type":"GRAPHIC","id":"NTFILEFFmo6qYCsP6TDbh8","market":"us","size":92855},{"description":"null","seq":30,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent025.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent025.jpg","type":"GRAPHIC","id":"NTFILEGv4RFtnd56xDJMjs","market":"us","size":91001},{"description":"null","seq":31,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent026.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent026.jpg","type":"GRAPHIC","id":"NTFILEDKeyKzsqHFavY5Rx","market":"us","size":95763},{"description":"null","seq":32,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent027.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent027.jpg","type":"GRAPHIC","id":"NTFILE79NDqeQnQAAUZcw4","market":"us","size":111986},{"description":"null","seq":33,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent028.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent028.jpg","type":"GRAPHIC","id":"NTFILEArB9ET1F3jouH2Go","market":"us","size":103198},{"description":"null","seq":34,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent029.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent029.jpg","type":"GRAPHIC","id":"NTFILEAGx1xassZErYAdDo","market":"us","size":88873},{"description":"null","seq":35,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent030.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent030.jpg","type":"GRAPHIC","id":"NTFILEHsRGCrhnc8WNd5yB","market":"us","size":83618},{"description":"null","seq":36,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent031.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent031.jpg","type":"GRAPHIC","id":"NTFILE9y5wZU5m6vjjHoHD","market":"us","size":70769},{"description":"null","seq":37,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/npkq12025investorpresent032.jpg","primary":false,"translateUrl":"","linkName":"npkq12025investorpresent032.jpg","type":"GRAPHIC","id":"NTFILE6ZUwx1sGNHp2pFUs","market":"us","size":87715},{"description":"null","seq":38,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000046/nr-20250502_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250502_g1.jpg","type":"GRAPHIC","id":"NTFILE6dR9FuXWUuJcoqvx","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-05-02 12:00","pubTimestamp":1746158400,"title_zh":"Form 8-K - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19594342","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000041-NPKI","pdf_url":"","pub_time":1746158400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"NPKI","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/0000071829-25-000041-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/nr-20250331.htm","primary":true,"translateUrl":"","linkName":"nr-20250331.htm","type":"10-Q","id":"NTFILE8rVcxGepaiLePLJU","market":"us","size":644155},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/a2025q110qexhibit311.htm","primary":false,"translateUrl":"","linkName":"a2025q110qexhibit311.htm","type":"EX-31.1","id":"NTFILE3kWw9c2sMDyt98qR","market":"us","size":8612},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/a2025q110qexhibit312.htm","primary":false,"translateUrl":"","linkName":"a2025q110qexhibit312.htm","type":"EX-31.2","id":"NTFILEFEWTGAHkHjbFx6R6","market":"us","size":8578},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/a2025q110qexhibit321.htm","primary":false,"translateUrl":"","linkName":"a2025q110qexhibit321.htm","type":"EX-32.1","id":"NTFILEDVe5i6emThCgaRM1","market":"us","size":4855},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/a2025q110qexhibit322.htm","primary":false,"translateUrl":"","linkName":"a2025q110qexhibit322.htm","type":"EX-32.2","id":"NTFILEEoW5UpooHybX435U","market":"us","size":5179},{"description":"null","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000041/nr-20250331_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250331_g1.jpg","type":"GRAPHIC","id":"NTFILE42ScAbjcrd5FvDLq","market":"us","size":6518}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-05-02 12:00","pubTimestamp":1746158400,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19592459","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000037-NPKI","pdf_url":"","pub_time":1746131383000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/0000071829-25-000037-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000037/a2025q18k-erex991.htm","primary":true,"translateUrl":"","linkName":"a2025q18k-erex991.htm","type":"EX-99.1","id":"NTFILEFGRLs9Abg29rjoWD","market":"us","size":257821},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000037/nr-20250501.htm","primary":false,"translateUrl":"","linkName":"nr-20250501.htm","type":"8-K","id":"NTFILEDduPfag4eGK2PYKq","market":"us","size":31673},{"description":"null","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000037/npklogoa.jpg","primary":false,"translateUrl":"","linkName":"npklogoa.jpg","type":"GRAPHIC","id":"NTFILEddY9NP7jqUWyTioj","market":"us","size":6518},{"description":"null","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000037/nr-20250501_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250501_g1.jpg","type":"GRAPHIC","id":"NTFILEJ3fK4AaWeduKXWqu","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-05-02 04:29","pubTimestamp":1746131383,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19225514","market":"us","labels":[],"media":"sec.gov","original_id":"AN7182925000017-NPKI","pdf_url":"","pub_time":1741665600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NPKI","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000017/0000071829-25-000017-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000017/a20258kmar10-exhibit991.htm","primary":true,"translateUrl":"","linkName":"a20258kmar10-exhibit991.htm","type":"EX-99.1","id":"NTFILE9KD3bcnGzqQKdYoY","market":"us","size":8145},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000017/nr-20250310.htm","primary":false,"translateUrl":"","linkName":"nr-20250310.htm","type":"8-K","id":"NTFILEF23wnjs64QzDvBoc","market":"us","size":32443},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000017/npklogoa.jpg","primary":false,"translateUrl":"","linkName":"npklogoa.jpg","type":"GRAPHIC","id":"NTFILE5nddV3q5BzWExECR","market":"us","size":6518},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000017/nr-20250310_g1.jpg","primary":false,"translateUrl":"","linkName":"nr-20250310_g1.jpg","type":"GRAPHIC","id":"NTFILECuSMP5kPEAdepdid","market":"us","size":6518}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-03-11 12:00","pubTimestamp":1741665600,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":2,"pageCount":1,"totalSize":36,"code":"91000000","status":"200"}]}}