** Shares of China's biopharmaceuticals products developer Zai Lab Ltd 9688.HK jump 17.1% to HK$32.5, their highest since March 2023, and on course for the second session of gains

** Stock set for the biggest one-day jump since May 9, 2024; second-biggest gainer on healthcare index .HSCIH, which is trading up 1.4%

** Zai Lab, with current market capitalisation of HK$34.26 bln ($4.41 bln), said its 2024 net product revenue increased 49% y/y to $397.6 mln, while R&D expenses decreased 12% y/y to $234.5 mln and net loss reduced 23% y/y to $257.1 mln

** Hang Seng Commerce & Industry Index .HSNC slips 0.7%, Hang Seng Index .HSI eases 0.6%

** Stock up 49% YTD

($1 = 7.7766 Hong Kong dollars)

(Reporting by Donny Kwok)

((donny.kwok@thomsonreuters.com))