Sichuan Road & Bridge Co.Ltd(600039) : audit reports of Sichuan Gaolu Construction Engineering Co., Ltd. from January to September 2021, 2020 and 2019. 1. Audit opinions of all shareholders of Sichuan Gaolu Construction Engineering Co., Ltd. we have audited the financial statements of Sichuan Gaolu Construction Engineering Co., Ltd. (hereinafter referred to as Gaolu construction), including the balance sheets on September 30, 2021, December 31, 2020 and December 31, 2019, Income statement, cash flow statement, statement of changes in owner’s equity and notes to relevant financial statements from January to September 2021, 2020 and 2019. In our opinion, the attached financial statements are prepared in accordance with the accounting standards for business enterprises in all major aspects, and fairly reflect the financial position of Gaolu building on September 30, 2021, December 31, 2020 and December 31, 2019, as well as the operating results and cash flows from January to September, 2021, 2020 and 2019