Amethystum Storage Technology Co.Ltd(688086) : the performance report of the audit committee of the board of directors in 2021 is in accordance with the standards for the governance of listed companies issued by the CSRC The audit committee of the board of directors of Shanghai Stock Exchange has fulfilled the duties entrusted by laws and regulations and the articles of association of the company in accordance with the relevant provisions of the guidelines for the operation of the audit committee of the board of directors of the seven municipal companies of Shanghai Stock Exchange, the Listing Rules of Shanghai Stock Exchange on the science and innovation board, the guidelines for the self discipline supervision of companies listed on the science and Innovation Board of Shanghai Stock Exchange No. 1 – standardized operation, the Amethystum Storage Technology Co.Ltd(688086) articles of association, the detailed rules for the implementation of the audit committee and so on, The report on the performance of duties in 2021 is as follows: