Cheng Shin Rubber Ind. Co., Ltd. announced that the board of directors of the company approved the plan of building an BC plant by the local committee of Douliu Third Plant. Type of contract: The transaction object has not been determined, and the supplementary announcement will be made after the formal contract is signed. The total amount of the plant construction project is approximately: TWD 1,250,000,000; The total amount of machinery and equipment projects is approximately: TWD 1,040,000,000; The total amount of public works is approximately: TWD 100,000,000; The total investment is estimated to be approximately: TWD 2,390,000,000; Date of the board of directors resolution: November 10, 2021; Date of ratification by supervisors or approval by the audit committee: November 10, 2021.