Tranche Update on Shandong Yanggu Huatai Chemical Co., Ltd.'s Equity Buyback Plan announced on November 17, 2023.

Shandong Yanggu Huatai Chemical Co., Ltd. is a China-based company which is principally engaged in the research, development, manufacture and distribution of rubber auxiliaries. The Company primarily provides processing agents, vulcanization agents, protective additives and plastic masterbatches, such as rubber scorching resistant agent N-(cyclohexylthio) phthalimide (CTP), which are applied in the prevention of rubber scorching in storage and processing; accelerating agent N-tert-Butyl-2-benzothiazolesulfenamide (NS), which are applied in the processing of rubber products and tires, as well as plasticizer A, which are applied in peptizing of natural rubbers and synthetic rubbers. The Company distributes its products in domestic and overseas markets.