Shenzhen Crastal Technology Co.Ltd(300824) : assurance report on the annual deposit and use of raised funds in 2021

Shenzhen Crastal Technology Co.Ltd(300824)

Year 2021

Verification report on annual deposit and use of raised funds

Index page number

Assurance Report

Special report on the deposit and use of raised funds in 2021 1 1-7

ShineWing certified public accountants, Chaoyang men North Street, Dongcheng District, Beijing Tel: + 86 (010) 65542288, 9 / F, block a, Fu Hua Manson,

ShineWing No.8, Chaoyangmen Beidajie,

Dongcheng District, Beijing, fax: + 86 (010) 65547190 certified public accounts 100027, P.R. China facile: + 86 (010) 65547190

Verification report on annual deposit and use of raised funds

XYZH/2022SZAA30091

Shenzhen Crastal Technology Co.Ltd(300824) all shareholders:

We have verified the attached special report of Shenzhen Crastal Technology Co.Ltd(300824) (hereinafter referred to as Shenzhen Crastal Technology Co.Ltd(300824) company) on the deposit and use of raised funds in 2021 (hereinafter referred to as the special report on the annual deposit and use of raised funds).

Shenzhen Crastal Technology Co.Ltd(300824) the management of the company is responsible for preparing a special report on the annual deposit and use of raised funds in accordance with the relevant provisions of Shenzhen Stock Exchange. This responsibility includes designing, implementing and maintaining the internal control related to the preparation of the special report on the annual storage and use of raised funds, ensuring that the special report on the annual storage and use of raised funds is true, accurate and complete, and there is no major misstatement caused by fraud or error. Our responsibility is to express assurance opinions on the special report on the annual storage and use of raised funds on the basis of the implementation of assurance work.

We audit or review historical financial information in accordance with the standards for other assurance business of Chinese certified public accountants No. 3101 - historical financial information

The assurance work has been carried out in accordance with the provisions of the "external assurance business", so as to obtain reasonable assurance on whether there is no major misstatement in the special report on the annual storage and use of raised funds. In the process of carrying out the assurance work, we have implemented the necessary assurance procedures such as inquiry, inspection and recalculation, and the selected procedures depend on our professional judgment. We believe that our assurance work provides a reasonable basis for expressing opinions.

We believe that the above special report on the annual deposit and use of the raised funds of Shenzhen Crastal Technology Co.Ltd(300824) company has been prepared in accordance with the relevant provisions of Shenzhen Stock Exchange, which truthfully reflects the actual deposit and use of the raised funds of Shenzhen Crastal Technology Co.Ltd(300824) company in 2021 in all major aspects.

This assurance report is only used for the purpose of disclosing the 2021 annual report of Shenzhen Crastal Technology Co.Ltd(300824) company, and shall not be used for any other purpose without the written consent of our firm.

ShineWing Certified Public Accountants (special general partnership) Chinese certified public accountant: Pan Chuanyun

Chinese certified public accountant: Yang Fan

Beijing, China March 23, 2002

Shenzhen Crastal Technology Co.Ltd(300824)

Special report on the deposit and use of raised funds in 2021

The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.

In accordance with the guidelines for the supervision of listed companies No. 2 - regulatory requirements for the management and use of raised funds by listed companies (revised in 2022) of China Securities Regulatory Commission, the guidelines for the self-discipline supervision of listed companies of Shenzhen Stock Exchange No. 2 - standardized operation of companies listed on GEM and relevant format guidelines of Shenzhen Stock Exchange, The special report on the deposit and use of raised funds of Shenzhen Crastal Technology Co.Ltd(300824) (hereinafter referred to as "the company") in 2021 is described as follows:

1、 Basic information of raised funds

1. Actual amount of raised funds and arrival time of funds

With the approval of the reply on the approval of Shenzhen Crastal Technology Co.Ltd(300824) initial public offering of shares (zjxk [2020] No. 591) issued by the China Securities Regulatory Commission (hereinafter referred to as the "CSRC"), Shenzhen Crastal Technology Co.Ltd(300824) (hereinafter referred to as the "company") issued 54350000 ordinary shares (A shares) in RMB for the initial public offering, with a par value of 1.00 yuan per share, an issue price of 5.91 yuan / share, and a total amount of raised funds of 321208500 yuan, After deducting the issuance expenses of RMB 394281 million, the net amount of funds actually raised was RMB 2817804 million. The raised funds were transferred to the designated account of the company on June 16, 2020. ShineWing Certified Public Accountants (special general partnership) verified the availability of the raised funds and issued the capital verification report of Shenzhen Crastal Technology Co.Ltd(300824) public offering of shares (xyzh / 2020sza30210).

2. Use and balance of net funds raised in previous years

Unit: 10000 yuan

Project amount

Initial net amount of raised funds account (June 16, 2020) 2959085

Less: 930.73 self raised funds for replacement of pre paid issuance expenses

Direct payment of issuance fee 482.08

Replace the self raised funds of 1304755 invested in the investment project with raised funds in advance

Investment projects directly invested with raised funds 219932

Purchase of financial products with idle raised funds 500000

Handling fee 0.07

Plus: return 500000 after the purchase of financial products expires

Investment income of financial products 16.83

Interest income 122.20

Project amount

Ending balance of raised funds account (December 31, 2020) 1307013

3. Utilization and balance of net raised funds in 2021

Unit: 10000 yuan

Project amount

Opening balance of raised funds account (January 1, 2021) 1307013

Less: 498771 yuan of investment projects invested directly with raised funds

Purchase of financial products with idle raised funds 800000

Handling fee 0.22

Letter fee 0.01

Plus: 800000 returned after the purchase of financial products expires

Investment income of financial products 172.39

Interest income 63.54

Ending balance of raised funds account (December 31, 2021) 831812

Note: in view of the company's good operation and stable financial situation, in order to improve the efficiency of fund use, make rational use of idle funds and increase the company's income, the 14th meeting of the third board of directors and the 12th meeting of the third board of supervisors held on March 24, 2021 deliberated and adopted the proposal on using some idle raised funds and self owned funds for cash management, It is agreed that the company will use idle self owned funds of no more than RMB 40 million (including RMB 40 million) and some idle raised funds of no more than RMB 80 million (including RMB 80 million) for cash management without affecting the construction of investment projects with raised funds, normal operation and ensuring the safety of funds.

On April 15, 2021, the general meeting of shareholders of the company deliberated and approved the proposal on using some idle raised funds and self owned funds for cash management. 2、 Deposit and management of raised funds

1. Formulation and implementation of fund-raising management system

In order to standardize the deposit, use and management of the company's raised funds, ensure the safety of the raised funds and maximize the legitimate rights and interests of investors, according to the company law of the people's Republic of China, the securities law of the people's Republic of China and the guidelines for the supervision of listed companies No. 2 - regulatory requirements for the management and use of raised funds of listed companies (revised in 2022) In combination with the actual situation of the company, the company has formulated the management and use system of raised funds, which clearly stipulates the storage and use of the special account of raised funds.

According to the management and use system of raised funds, the company has opened a special bank account to store the raised funds.

The financial department of the company shall set up an account for the use of the raised funds and record in detail the expenditure of the raised funds and the investment of the raised investment projects.

2. Deposit of raised funds in special account

As of December 31, 2021, the specific deposit of raised funds is as follows:

No. deposit bank name bank account No. initial deposit amount ending date balance remarks

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