Tranche Update on Zhejiang Hisun Pharmaceutical Co., Ltd.'s Equity Buyback Plan announced on December 23, 2023.

Zhejiang Hisun Pharmaceutical Co., Ltd. is a China-based company, principally engaged in the research and development, manufacture and distribution of specialty bulk pharmaceutical chemicals and preparation products. The Company's bulk pharmaceutical chemicals mainly include antineoplastic drugs, cardiovascular drugs, anti-infection drugs, endocrine control drugs, anthelmintic, as well as animal remedies, among others. The Company is also engaged in the sales of drugs manufactured by other companies. The Company distributes its products in domestic markets and to overseas markets.