[BYD, Meituan fuel tech surge in HK as Beijing rolls back Covid-19 curbs, HKEX unrattled by LME lawsuit] Stocks in Hong Kong and mainland China rose after Beijing rolled back some of its Covid-19 restrictions while investors turned more upbeat on the market. Hong Kong Exchanges and Clearing was unrattled after metal traders sued its UK unit. The Hang Seng Index climbed 2.7 per cent to 21,653.90 at the close of Monday trading, the highest level since April 8. The Tech Index jumped 4.6 per cent, the most since May 20, while the Shanghai Composite Index added 1.2 per cent....