Shenzhen Crastal Technology Co.Ltd(300824) : verification opinions of Zhongshan Securities Co., Ltd. on the company's securities investment

Zhongshan Securities Co., Ltd

About Shenzhen Crastal Technology Co.Ltd(300824)

Verification opinions on securities investment

Zhongshan Securities Co., Ltd. (hereinafter referred to as "sponsor" and "Zhongshan securities") as the sponsor of Shenzhen Crastal Technology Co.Ltd(300824) (hereinafter referred to as " Shenzhen Crastal Technology Co.Ltd(300824) " and "the company") for initial public offering of shares and listing on the gem, in accordance with the rules for listing shares on the gem of Shenzhen Stock Exchange and the guidelines for self discipline supervision of listed companies on the Shenzhen Stock Exchange No. 2 - standardized operation of companies listed on the gem In accordance with the relevant provisions of the guidelines for business handling of companies listed on the gem No. 2 - matters related to the disclosure of periodic reports, the securities and derivatives investment in Shenzhen Crastal Technology Co.Ltd(300824) 2021 was carefully verified. The specific verification conditions are as follows: I. review and approval of securities investment

The proposal on the amount of idle investment of the company's own funds (including the amount of RMB 50 million) and the proposal on the reuse of the company's own funds not exceeding the amount of RMB 50 million in the third rolling meeting of the 14th board of directors were approved at the 24th Meeting of the 14th board of directors in March 2021.

2、 Securities investment in the reporting period

As of December 31, 2021, the details of the company's securities investment are shown in the Annex: securities investment III. internal control and management of securities investment

The company established a securities investment management system, defined the scope and process of investment and financial management, and strengthened the control of investment decision-making, investment implementation and risk control. The capital source of the company's participation in securities investment is the company's own capital. The company's securities investment does not exceed the approval authority of the board of directors and the general meeting of shareholders, and does not affect the development of the company's main business. After careful verification, the board of Directors believes that the company's securities investment strictly complies with the relevant provisions of the articles of association and the securities investment management system, and there is no violation of laws, regulations and normative documents. 4、 Verification opinions of the board of directors

After verification, the board of directors of the company believes that the securities investment of the company strictly complies with the articles of association and laws, and there is no violation of relevant laws, regulations and normative documents. Independent directors expressed independent opinions.

5、 Verification opinions of the recommendation institution

After verification, the sponsor believes that the securities investment of the company in 2021 has gone through the necessary approval procedures and disclosed in the designated disclosure media, which meets the requirements of relevant laws and regulations such as the Listing Rules of GEM stocks of Shenzhen Stock Exchange, the self regulatory guidelines for listed companies of Shenzhen Stock Exchange No. 2 - standardized operation of GEM listed companies, and there is no damage to the interests of shareholders of the company.

Annex: Securities Investment

In 2021, the company's securities investment included the purchase of national debt reverse repurchase, fund products and stocks. As of December 31, 2021, the book balance of securities investment was 290605 million yuan, including:

(1) The book balance of national debt reverse repurchase is RMB 10000, and the investment income in the current period is RMB 0700; (2) The book balance of shares is RMB 10000, and the investment income realized in the current period is RMB 0500;

(3) The book balance of fund products is 290605 million yuan, and the investment income realized in the current period is -1225800 yuan. (there is no text on this page, which is the signature page of the verification opinions of Zhongshan Securities Co., Ltd. on Shenzhen Crastal Technology Co.Ltd(300824) securities investment)

Sponsor representative:

Chen Xiande Wan Yunfeng

Zhongshan Securities Co., Ltd. March 23, 2022

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