On November 11, 2022, East China Engineering Science and Technology Co., Ltd. closed the transaction. The company has incurred issuance expenses of CNY 13,341,676.97 in the transaction. Post-closing of the transaction, stake of Third Chemical Industry Design Institute Co., Ltd. has reduced from 58.14% to 47.03% and Shaanxi Coal and Chemical Industry Group Co., Ltd. has 20.77% stake in the company.

On November 23, 2022, the newly added shares of this non-public offering have received the "Confirmation of Acceptance of Share Registration Application" issued by China Securities Depository and Clearing Co., Ltd. Shenzhen Branch.