Beijing Sinohytec Co.Ltd(688339) : the response of Dahua Accounting firm (Special general Partnership) to the post – Audit Inquiry letter on the Annual Report of 2021 by Shanghai Stock Exchange: According to the requirements of your post – Audit Inquiry letter on the Annual Report of 2021 by Shanghai Security Exchange (Shanghai Security Science and Technology Corporation [2022] No. 0156) (hereinafter referred to as “Inquiry letter”), Dahua Certified Public Accountants (Special general Partnership) (hereinafter referred to as “We”) as the auditing Agency for Annual Report 2021 of Beijing Sinohytec Co.Ltd(688339) (hereinafter referred to as ” Beijing Sinohytec Co.Ltd(688339) \ ” Company “), replied to the relevant questions raised in your Inquiry letter as follows: question 1, related to the Client…