* 中国股市电子设计自动化（EDA）概念股周四早盘走挫，概伦电子688206.SS一度跌4.9%；多家海外巨头称美国已撤销这些产品对中国的出口限制。
* 国产EDA工具开发商--华大九天301269.SZ一度跌1.1%，广立微301095.SZ挫1.4%。
* EDA巨头--CadenceCDNS.O稍早表示，美国已经取消了对中国芯片设计软件的出口限制，公司正在恢复受影响客户对软件和技术的使用权。
* SynopsysSNPS.O亦发布声明称，美国已撤销对公司产品对华出口限制；公司致力于恢复中国产品销售，正评估出口限制对业务的影响。
* 彭博新闻周三援引西门子SIEGn.DE的一份声明报导，西门子已收到美国政府的通知，称已取消针对中国的芯片设计软件出口限制。今年5月，美国命令这些公司在向中国出口半导体设计软件和化学品等产品之前必须获得许可证。（完）
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(发稿 林宇涵；审校 张喜良)
((yuhan.lin@thomsonreuters.com;))
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