600860: commitment letter for change of signatory of audit institution

600860: commitment letter for the change of the signatory of the audit institution China Securities Regulatory Commission: I. Basic Information Beijing Jingcheng Machinery Electric Company Limited(600860) (hereinafter referred to as the issuer) submitted the application for approval of the issuance of shares by listed companies to purchase assets (No. 212436) and relevant application documents to China Securities Regulatory Commission (hereinafter referred to as the Council) on September 10, 2021, The acceptance notice (No. 212436) was received on September 15, 2021. The accounting firm is ShineWing Certified Public Accountants (special general partnership) (hereinafter referred to as the firm). Before this change, the signing accountants were Ma Chuanjun and Qu Shuangqing, and now it is proposed to change to Wang Xin and Qu Shuangqing. 2、 Reason for change: Ma Chuanjun, the original signing accountant, will no longer serve as the signing accountant of this issuance due to the adjustment of work arrangement