On February 8, 2021, Zhejiang Tuna Environmental Science & TechnologyCo.,Ltd. (SHSE:603177) announced that it has terminated the transaction and has withdrawn application of documents. The termination has been approved by the board of directors of the company at its 24th meeting of the 3rd directorate and the 17th meeting of the 3rd supervisory board, and does not need shareholder's approval.