Viva Biotech: Boao Biotech and its concerted parties have collectively reduced their shareholding ratio to 8.82%

Microcore Biotechnology announced that its shareholders, BioBio and its concerted action party Tianfu Qingyuan Holdings Limited, collectively reduced their holdings of the company's shares by a total of 4.8295 million shares through competitive bidding and block trading between October 23, 2025 and November 19, 2025. The proportion of the shares held by BioBio and its concerted action party decreased from 10.00% to 8.82%, triggering a change in equity exceeding the 1% threshold. This change in equity is in line with the previously disclosed share reduction plan, does not involve any new sources of funds, the reduction plan has not yet been completed, and the discloser is still in the reduction period.