** Shares of Shanghai Conant Optical 2276.HK surge 6.7% to HK$50.1, their highest since debut in December 2021
** Stock on track for the biggest one-day pct gain since July 28
** The Chinese resin spectacle lenses maker says it will be included as a constituent of a total of 13 indices by Hang Seng Indexes Co Ltd, including the Hang Seng Composite Index and Hang Seng Hong Kong Stock Connect Index, with effect from September 8
** Says the inclusion will help to broaden the company’s shareholder base and increase trading liquidity of its shares
** Hang Seng Commerce & Industry Index .HSNC rises 2.7%, benchmark Hang Seng Index .HSI climbs 2.1%
** YTD, stock up 95.8%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))