688033: Beijing Tianyishangjia New Material Corp.Ltd(688033) assurance report of non recurring profit and loss

All shareholders of Beijing Tianyishangjia New Material Corp.Ltd(688033) : we have accepted the entrustment to perform the authentication work on the attached Beijing Tianyishangjia New Material Corp.Ltd(688033) (hereinafter referred to as the " Beijing Tianyishangjia New Material Corp.Ltd(688033) " company's non recurring profit and loss statements (hereinafter referred to as the "non recurring profit and loss statements") from January to September 2021, 2020, 2019 and 2018. In accordance with the provisions of the explanatory Announcement No. 1 on information disclosure of companies offering securities to the public - non recurring profits and losses (2008) (CSRC announcement [2008] No. 43) issued by the China Securities Regulatory Commission, it is the responsibility of the management of Beijing Tianyishangjia New Material Corp.Ltd(688033) company to prepare the detailed statement of non recurring profits and losses and provide true, legal and complete assurance, Our responsibility is to put forward the assurance conclusion on the non recurring profit and loss statement on the basis of the assurance work