CONANT OPTICAL (02276) rose more than 6%, reaching an intraday high of HK$64.5 to set a fresh record. At the time of writing, the stock was up 4.97% at HK$63.4, with a turnover of HK$34.76 million.

The increase was primarily driven by higher sales volumes of 1.74 high-index lenses and other multi-functional products; the continued amplification of the company's economies of scale and improved level of mechanization and automation; and the company's active efforts to optimize its financing structure, thereby enhancing capital returns and reducing financing costs.