Updates

** U.S.-listed shares of Chinese firms pare gains and some reversed course premarket after China imposes additional tariffs on U.S. goods

** China slaps additional levies of 84% from April 10, up from the 34% previously announced - finance ministry

** Alibaba Group Holding BABA.N now up 0.8%, while JD.com JD.O was flat and PDD Holdings PDD.O down 2.1%

** Gaming stock Bilibili BILI.O up 2.5%; Baidu BIDU.O down 3%

** EV firms Li Auto LI.O, Nio NIO.N lost more than 1% each; Xpeng XPEV.N up 0.2%

** Weibo WB.O and live streaming platform Huya HUYA.N up 1% each

** Online brokerages Futu Holdings FUTU.O and UP Fintech Holding TIGR.O lost more than 1% each

** IShares MSCI China ETF MCHI.O, China Large-Cap ETF FXI.N up about 2.4% each; KraneShares CSI China Internet ETF KWEB.K gains 1.7%; Direxion China CSI Daily Bull 2X CWEB.K up 4.2%

** Chinese ADRs tracked mainland peers higher earlier as state-run brokerages pledge to help steady domestic share prices and several listed cos unveiled stock buying plans to limit trade war damage .SS

(Reporting by Pranav Kashyap in Bengaluru)

((Pranav.Kashyap@thomsonreuters.com; +919886482111;))