Wuxi Dk Electronic Materials Co.Ltd(300842) : the assurance report of the special report on the deposit and actual use of raised funds in 2021

Wuxi Dk Electronic Materials Co.Ltd(300842) assurance report of the special report on the deposit and actual use of raised funds in 2021

ZTY [2022] He Zi No. 90041

Zhongtianyun certified public accountants LLP (special general partnership)

catalogue

1. Verification report of the special report on the deposit and actual use of raised funds... 12. Special report on the deposit and actual use of raised funds in 2021... 33. Comparison table on the use of raised funds 94. Copy of the business license of the firm 115. Copy of practice certificate of the firm 126. Copy of certified public accountant's qualification certificate signed thirteen

Wuxi Dk Electronic Materials Co.Ltd(300842) 2021

Verification report of the special report on the deposit and actual use of raised funds

ZTY [2022] Hz No. 90041 Wuxi Dk Electronic Materials Co.Ltd(300842) all shareholders:

We are entrusted to review and verify the attached special report on the deposit and actual use of raised funds in 2021 (hereinafter referred to as the "special report on raised funds") of Wuxi Dk Electronic Materials Co.Ltd(300842) (hereinafter referred to as "your company").

1、 Responsibilities of the board of directors

In accordance with the China Securities Regulatory Commission's 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) (CSRC announcement [2022] No. 15) Shenzhen Stock Exchange issued the notice of Shenzhen Stock Exchange listed companies self regulatory guidelines No. 2 - standardized operation of GEM listed companies (revised in 2022) (SZS [2022] No. 14) and Shenzhen Stock Exchange GEM listed companies business handling guidelines No. 6 - information disclosure announcement format (revised in September 2021) (SZS [2021] (No. 959) prepare the special report on raised funds to ensure that its contents are true, accurate and complete, and there are no false records, misleading statements or major omissions. It is the responsibility of the board of directors of your company to provide true, legal and complete physical evidence, original written materials, duplicate materials, oral testimony and other evidence we deem necessary.

2、 Responsibilities of Certified Public Accountants

Our responsibility is to express opinions on the special report of raised funds on the basis of the implementation of assurance work. We have carried out the assurance business in accordance with the provisions of other assurance business standards for Chinese certified public accountants No. 3101 - assurance business other than audit or review of historical financial information, which requires us to plan and carry out the assurance work to obtain reasonable assurance about whether there is no material misstatement in the special report of raised funds.

In the assurance process, we have implemented procedures including understanding, inquiry, inspection, recalculation and other procedures that we deem necessary. We believe that our assurance work provides a reasonable basis for expressing opinions.

3、 Assurance conclusion

We believe that your company's special report on raising funds is 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) (CSRC announcement [2022] No. 15) of China Securities Regulatory Commission in all major aspects Shenzhen Stock Exchange's self regulatory guidelines for listed companies of Shenzhen Stock Exchange No. 2 - standardized operation of companies listed on GEM (revised in 2022) (SZS [2022] No. 14) and Shenzhen Stock Exchange

The preparation of the notice (SZS [2021] No. 959) of the guide for business handling of companies listed on the gem of the stock exchange No. 6 - format of information disclosure announcement (revised in September 2021) fairly reflects the deposit and actual use of the raised funds of your company in 2021 in all major aspects.

4、 Other explanatory matters

This special audit report is only for the purpose of your company's 2021 annual report disclosure, and shall not be used for any other purpose. Zhongtianyun Certified Public Accountants (special general partnership) Chinese certified public accountant:

Chinese certified public accountant:

Beijing, China March 8, 2002

Annual deposit and actual use of special funds

Wuxi Dk Electronic Materials Co.Ltd(300842) board of directors

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

The company and its directors, supervisors and senior managers guarantee that the contents of the announcement are true, accurate and complete, and bear individual and joint liabilities for false records, misleading statements or major omissions in the announcement.

According to 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) (CSRC announcement [2022] No. 15) Relevant provisions such as Shenzhen Stock Exchange self regulatory guidelines for listed companies No. 2 - standardized operation of GEM listed companies (revised in 2022) (SZS [2022] No. 14) and Shenzhen Stock Exchange GEM listed companies business handling guidelines No. 6 - information disclosure announcement format (revised in September 2021) (SZS [2021] No. 959), Wuxi Dk Electronic Materials Co.Ltd(300842) (hereinafter referred to as "the company" or "the company") the board of directors prepared a special report on the deposit and actual use of raised funds in 2021. 1、 Basic information of raised funds

(I) amount of funds actually raised and receipt of funds

With the approval of the reply on approving Wuxi Dk Electronic Materials Co.Ltd(300842) initial public offering of shares (zjxk [2020] No. 830) issued by China Securities Regulatory Commission, Wuxi Dk Electronic Materials Co.Ltd(300842) issued 25 million ordinary shares (A shares) to the public, with a par value of 1.00 yuan per share, an issue price of 15.96 yuan per share and a total raised capital of 399 million yuan, After deducting the total amount of underwriting fees and other issuance expenses (excluding the deductible VAT input tax of the issuance expenses of this public offering of shares), the net amount of funds actually raised by the company is RMB 35056260000.

On June 15, 2020, Everbright Securities Company Limited(601788) will remit the balance of 37060269246 yuan after deducting the unpaid underwriting recommendation fee (excluding tax of 2839730754 yuan) to the company's account in Bank Of Jiangsu Co.Ltd(600919) Wuxi science and technology sub branch (Account No.: 219101880000188129) 21 Taiyuan Heavy Industry Co.Ltd(600169) 246 yuan, China Merchants Bank Co.Ltd(600036) Yixing branch account (Account No.: 610902269810708) 5000000000 yuan Bank Of Ningbo Co.Ltd(002142) Yixing sub branch account (Account No.: 780501220 Risesun Real Estate Development Co.Ltd(002146) 2) 54 Tangshan Port Group Co.Ltd(601000) 00 yuan, Bank of communications Yixing Dongshan sub branch account (Account No.: 39400069601 Haimo Technologies Group Corp(300084) 783) 5000000000 yuan. The above paid in raised funds have been verified by zhongtianyun Certified Public Accountants (special general partnership) zhongtianyun [2020] Yan Zi No. 90029 report.

The company has adopted the special account storage management for the raised funds, and signed the tripartite supervision agreement on the special account storage of raised funds with Bank Of Jiangsu Co.Ltd(600919) Wuxi Branch, China Merchants Bank Co.Ltd(600036) Yixing sub branch, Bank Of Ningbo Co.Ltd(002142) Yixing sub branch, Bank Of Communications Co.Ltd(601328) Wuxi Branch and the sponsor Everbright Securities Company Limited(601788) Wuxi Branch.

Annual deposit and actual use of special funds

(II) use and balance of raised funds

Use of raised funds in 2021:

Unit: RMB

Project amount

The balance of raised funds on December 31, 2020 was 20559137832

Less: the total amount of direct investment and raised investment projects in 2021 is 6776841518

Less: interest on surplus raised funds after cancellation of raised funds account in 2021: 0.45

Plus: net interest income received in 2021 after deducting handling charges 29941029

Plus: financial income from idle raised funds received in 2021: 456558634

As of December 31, 2021, the balance of raised funds was 14268795932

2、 Deposit and management of raised funds

(I) deposit of raised funds

As of December 31, 2021, the balance of the raised funds account was 14268795932 yuan, including 3268795932 yuan of current deposit and 11000000000 yuan of principal guaranteed financial products. The specific storage conditions are as follows:

Unit: RMB

Company name bank name account number type storage amount

Wuxi dike Electronic Materials Co., Ltd. Bank Of Jiangsu Co.Ltd(600919) Co., Ltd

21910188000188129 current deposit 1022361074 shares Co., Ltd. Wuxi science and technology sub branch

Wuxi dike Electronic Materials Co., Ltd. Bank Of Jiangsu Co.Ltd(600919) Co., Ltd

21910188000188129 structured financial management 7000000000 copies Co., Ltd. Wuxi science and technology sub branch

Wuxi dike Electronic Materials Co., Ltd. Bank Of Jiangsu Co.Ltd(600919) Securities Co., Ltd. income certificate

Co., Ltd. Wuxi science and technology sub branch 21910188000188129 financial management certificate 4000000000

Wuxi dike Electronic Materials Co., Ltd. Bank Of Ningbo Co.Ltd(002142) Co., Ltd

780501220 Risesun Real Estate Development Co.Ltd(002146) 2 current deposit 2246434858 shares Co., Ltd. Yixing sub branch

Wuxi dike Electronic Materials Co., Ltd. China Merchants Bank Co.Ltd(600036) Co., Ltd

610902269810708 cancellation of current deposit

Yixing sub branch Co., Ltd

Wuxi dike Electronic Materials Co., Ltd. Bank Of Communications Co.Ltd(601328) Yixing Dongshan

39400069601 Haimo Technologies Group Corp(300084) 783 cancellation of current deposit

Copy Co., Ltd. sub branch

Total 14268795932

Note: Bank Of Communications Co.Ltd(601328) Yixing

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