Bio-Chem announced that the company's controlling shareholder, Tongyun Investment, has pledged 15 million shares. The pledged shares account for 7.09% of its total holdings in the company and 2.12% of the company's total share capital. The pledge start date is September 9, 2025, and the pledge expiration date is until the procedures for the release of the pledge registration are completed. The purpose of the pledged financing funds is for its own production and operation