Poly Union Chemical Holding Group Co.Ltd(002037) : Poly Union Chemical Holding Group Co.Ltd(002037) report on the use of the previously raised funds of Chemical Holdings Poly Union Chemical Holding Group Co.Ltd(002037) all shareholders: we have reviewed the attached report on the use of the previously raised funds (issuing shares to purchase assets) prepared by the board of directors of Poly Union Chemical Holding Group Co.Ltd(002037) (hereinafter referred to as ” Poly Union Chemical Holding Group Co.Ltd(002037) ·) as of December 31, 2021 。 1、 Restrictions on the users and purposes of the report. This assurance report is only used for the purpose of Poly Union Chemical Holding Group Co.Ltd(002037) applying for stock issuance, and shall not be used for any other purpose. We agree to take this assurance report as a necessary document for Poly Union Chemical Holding Group Co.Ltd(002037) applying for stock issuance and submit it together with other application documents. II. The responsibility of the board of directors Poly Union Chemical Holding Group Co.Ltd(002037) the responsibility of the board of directors is to provide true, legal and complete relevant materials, Prepare the report on the use of the previously raised funds as of December 31, 2021 in accordance with the provisions on the report on the use of the previously raised funds (Zheng Jian FA FA Zi No. 20071500) of the China Securities Regulatory Commission, and ensure that its contents are true, accurate and complete without false records, misleading statements or major omissions. 3、 Responsibilities of Certified Public Accountants our responsibility is to independently put forward assurance conclusions on the above report prepared by Poly Union Chemical Holding Group Co.Ltd(002037) board of directors based on the implementation of assurance work. IV. work overview we have carried out assurance business in accordance with the provisions of other assurance business standards for Chinese certified public accountants No. 3101 – assurance business other than audit or review of historical financial information. The standard requires us to plan and implement assurance work to obtain reasonable assurance on whether the information of the assurance object is free from material misstatement. In the assurance process, we have implemented procedures that we consider necessary, including checking accounting records. We believe that our assurance work provides a reasonable basis for expressing opinions