Shanghai Stock Exchange issued a supervision letter to Dalian Bio-Chem Company Limited(603360) on matters such as the waiting for freezing of shares held by Sanxin investment, the second largest shareholder

On March 4, the Shanghai Stock Exchange issued a supervision letter to Dalian Bio-Chem Company Limited(603360) on matters related to the waiting for freezing of the company's shares held by Sanxin investment, the second largest shareholder of the company, involving listed companies, controlling shareholders and actual controllers.