** Shares of Innovent Biologics 1801.HK rise 5.4% to HK$89.5 in a second session of gains, on course for the biggest one-day pct gain since April 15
** Stock hits the highest point since April 22; second-biggest pct gainer in the benchmark Hang Seng Index .HSI, which slips 0.7%
** Chinese innovative medicines producer says its total product revenue for the first quarter of 2026 jumped over 50% y/y to 3.8 bln yuan ($555.46 mln)
** "Looking ahead, continuous progression of our domestic business and global pipeline development will steadily propel Innovent towards becoming a global premier biopharmaceutical company" - co
** YTD, stock up 15.9%, Hang Seng Biotech Index .HSBIO up 3.9%
($1 = 6.8412 Chinese yuan)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))