** Shares of Black Sesame International Holding 2533.HK rise 5.8% to HK$19.3, their highest level since June 11, and on course for fourth straight session of gain
** Stock set for biggest one-day pct rise since May 29
** Second biggest pct gainer on Hang Seng Composite Index on IT firms .HSCIIT, which slips 0.6%
** Automotive-grade intelligent vehicle solution provider signs LoI to acquire unidentified China-based AI system-on-chips developer
** Company says deal will enable it to offer full coverage of automotive-grade computing chips and facilitates its products to expand into robotics application with AI inference chip products and solutions
** Hang Seng Tech Index .HSTECH eases 0.7%, Hang Seng Index .HSI falls 0.8%
** YTD, stock down 34.4%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))