** Chinese intelligent vehicle solutions provider Black Sesame International Holding 2533.HK drop as much as 50.9% to HK$19.04, its lowest since September 16, 2024
** Stock is the biggest percentage decliner on the Hong Kong bourse and the top percentage loser on the Hang Seng Composite Index, which tracks IT firms .HSCIIT, up 2.1%
** Shares jumped 55.5% to record high last Friday, on BYD Co 1211.HK reportedly using the firm's chips
** Black Sesame clarified on Monday that the company has long-term collaboration with key Chinese automotive original equipment manufacturers, including BYD Co, and there is no material change regarding the collaboration
** BYD's Hong Kong-listed shares 1211.HK slip 0.3% and Shenzhen-listed stock 002594.SZ eases 0.6%
** Hang Seng Tech Index .HSTECH rises 2% and Hang Seng Index .HSI climbs 1.6%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))
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