Shenzhen Senior Technology Material Co.Ltd(300568) : assurance report on the deposit and use of the company’s raised funds in 2021

Assurance report on the deposit and use of raised funds in Shenzhen Senior Technology Material Co.Ltd(300568) 2021

Zhitong Certified Public Accountants (special general partnership)

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Assurance report on the deposit and use of raised funds in Shenzhen Senior Technology Material Co.Ltd(300568) 2021 special report of Shenzhen Senior Technology Material Co.Ltd(300568) board of directors on the deposit and use of raised funds in 1-11 of 2021

Zhitong Certified Public Accountants (special general partnership), 5th floor, set square, No. 22, Jianguomenwai street, Chaoyang District, Beijing, China, 100004

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About Shenzhen Senior Technology Material Co.Ltd(300568)

Deposit and use of raised funds in 2021

Assurance Report

Zhi Tong Zhi Zi (2022) No. 440a000941

Shenzhen Senior Technology Material Co.Ltd(300568) all shareholders:

We have reviewed the attached special report on the deposit and use of raised funds in 2021 by the board of directors of Shenzhen Senior Technology Material Co.Ltd(300568) (hereinafter referred to as Shenzhen Senior Technology Material Co.Ltd(300568) company). The special report on the deposit and use of raised funds in 2021 shall be prepared in accordance with the requirements of the guidelines for the standardized operation of companies listed on the gem of Shenzhen Stock Exchange and the business memorandum on GEM information disclosure No. 1 – use of over raised funds and idle raised funds (revised in December 2014), so as to ensure that its contents are true, accurate and complete without false records Misleading statements or major omissions are the responsibility of the board of directors of Shenzhen Senior Technology Material Co.Ltd(300568) company. Our responsibility is to express our opinions on the special report on the deposit and use of raised funds in 2021 prepared by the board of directors of Shenzhen Senior Technology Material Co.Ltd(300568) company on the basis of audit.

We plan and implement the audit 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, so as to reasonably believe that there is no material misstatement in the above special report on the deposit and use of raised funds in 2021. During the audit, we implemented audit procedures that we considered necessary, including checking accounting records, in combination with the actual situation of Shenzhen Senior Technology Material Co.Ltd(300568) company. We believe that our audit work provides a reasonable basis for issuing assurance opinions.

After review, we believe that the special report on the deposit and use of raised funds in 2021 prepared by the board of directors of Shenzhen Senior Technology Material Co.Ltd(300568) company complies with the guidelines for the standardized operation of companies listed on the gem of Shenzhen Stock Exchange The relevant provisions and relevant format guidelines of gem information disclosure business Memorandum No. 1 – use of over raised funds and idle raised funds (revised in December 2014) are consistent with the actual storage and use.

This assurance report is only used by Shenzhen Senior Technology Material Co.Ltd(300568) company when disclosing the annual report, and shall not be used for any other purpose. Zhitong certified public accountants China Certified Public Accountants

(special general partnership)

Chinese certified public accountant

Beijing, China February 28, 2002

Shenzhen Senior Technology Material Co.Ltd(300568) board of directors

On the deposit and use of raised funds in 2021

Special report

In accordance with the relevant provisions of the guidelines for the standardized operation of companies listed on the gem of Shenzhen Stock Exchange and the gem information disclosure business Memorandum No. 1 – use of over raised funds and idle raised funds (revised in December 2014), the deposit and use of the company’s raised funds in 2021 are described as follows:

1、 Basic information of raised funds

(I) actual amount of funds raised and time of funds in place

1. Funds raised from IPO in 2016 (“funds raised from IPO”)

With the approval of zjxk [2016] No. 2534 document of China Securities Regulatory Commission and the consent of Shenzhen Stock Exchange, Shenzhen Senior Technology Material Co.Ltd(300568) (hereinafter referred to as “the company”) publicly issued 30 million ordinary shares (A shares) to the public, with a par value of RMB 1.00 per share, an issue price of RMB 21.65 per share and a total raised capital of RMB 64950000000, After deducting the issuance expenses of RMB 4525037736, the net amount of funds actually raised was RMB 60424962264. The above-mentioned raised funds have been fully paid on November 25, 2016.

The above net amount of raised funds has been verified in the capital verification report (gkyz [2016] No. g140 Souyute Group Co.Ltd(002503) 90) of Guangdong Zhengzhong Zhujiang Certified Public Accountants (special general partnership).

2. Funds raised through public issuance of convertible corporate bonds in 2018 (“funds raised through issuance of convertible bonds”)

With the approval of zjxk [2017] No. 2417 document of China Securities Regulatory Commission and the consent of Shenzhen Stock Exchange, the company publicly issued 480 million yuan of convertible corporate bonds to the public. After deducting the issuance cost of 731655000 yuan (tax included), the net amount of funds actually raised was 47268345000 yuan. The above raised funds have been fully paid on March 15, 2018.

The above net amount of raised funds has been verified in the capital verification report (ghyz [2018] No. g18000360028) of Guangdong Zhengzhong Zhujiang Certified Public Accountants (special general partnership).

3. Funds raised by non-public offering of shares in 2019 (“funds raised by non-public offering”)

With the approval of zjxk [2019] No. 261 document of China Securities Regulatory Commission and the consent of Shenzhen Stock Exchange, the company privately issued 38.4 million RMB ordinary shares (A shares) to specific objects, with a par value of RMB 1.00 per share, an issue price of RMB 22.37 per share and a total raised capital of RMB 85900800000, After deducting the issuance expenses of RMB 1633221132 (excluding tax), the net amount of funds actually raised is RMB 84267578868. The above raised funds have been fully paid on August 1, 2019.

The above net amount of raised funds has been verified in the capital verification report (gkyz [2019] No. g18035720120) of Guangdong Zhengzhong Zhujiang Certified Public Accountants (special general partnership).

4. The funds raised from the public issuance of convertible corporate bonds in 2021 (“the funds raised from the issuance of convertible bonds in 2021”) have been approved by the China Securities Regulatory Commission’s zjxjxk [2020] No. 3426 document and approved by the Shenzhen Stock Exchange. The company publicly issues 1 billion yuan of convertible corporate bonds to the public, deducting the issuance fee of 902323686 yuan (excluding tax), The net amount of funds actually raised was RMB 990976314. The above raised funds have been fully paid on January 26, 2021.

The above net amount of raised funds has been verified in the capital verification report (ztyz (2021) No. 440c Tianma Microelectronics Co.Ltd(000050) ) of Grant Thornton Certified Public Accountants (special general partnership).

(II) amount used in previous years, amount used in current year and current balance

1. Amount used in previous years

(1) Funds raised from initial public offering in 2016

As of December 31, 2020, the company has used 60638970592 yuan of raised funds in total, the raised funds have been used up, and the special account for raised funds has been closed.

(2) Funds raised by issuing convertible bonds in 2018

As of December 31, 2020, the company has invested 47407856901 yuan in projects invested with raised funds, the raised funds have been put into use, and the special account for the raised funds has been closed.

(3) Funds raised from non-public offering in 2019

As of December 31, 2020, the accumulated investment of the raised funds in the projects invested by the raised funds was 83373468699 yuan, and the unused amount was 1331633846 yuan (including the net amount of 22402357 yuan after deducting the handling fee from the interest stored in the special account). 2. Amount used and current balance in the current year

(1) Funds raised from initial public offering in 2016

As of December 31, 2021, the special account for raised funds has been closed.

(2) Funds raised by issuing convertible bonds in 2018

As of December 31, 2021, the special account for raised funds has been closed.

(3) Funds raised from non-public offering in 2019

In 2021, the company directly invested 1327078600 yuan in projects invested with raised funds and permanently supplemented 4694354 yuan of working capital.

As of December 31, 2021, the raised funds have invested 84700547299 yuan in the projects invested with raised funds (including 40591505028 yuan of self raised funds invested in the projects invested with raised funds in advance) and 4694354 yuan of working capital has been permanently supplemented. The raised funds have been put into use, and the special account for the raised funds has been closed.

(4) Funds raised by issuing convertible bonds in 2021

In 2021, the company directly invested 21916206259 yuan in the projects invested with raised funds, permanently supplemented 29103118631 yuan of working capital, temporarily supplemented 300 million.00 yuan of working capital, and purchased 35 million.00 yuan of financial products with temporarily idle raised funds.

As of December 31, 2021, the company has used a total of 84519324890 yuan of raised funds, including 21916206259 yuan of funds directly invested in raised projects, 29103118631 yuan of permanent supplementary working capital, 300 million.00 yuan of temporary supplementary working capital, and 35 million.00 yuan of financial products purchased with temporarily idle raised funds, The unused amount is 1570334610 yuan (including 1124983186 yuan net of handling charges deducted from the interest stored in the special account), and 0 yuan has not been invested in the raised investment projects replaced from the special account for raised funds.

2、 Management of raised funds

(I) management of raised funds

In order to standardize the management and use of raised funds and protect the rights and interests of investors to the greatest extent, The company shall comply with the company law of the people’s Republic of China, the securities law of the people’s Republic of China, the measures for the administration of initial public offering and listing on the gem, the Interim Measures for the administration of securities issuance of companies listed on the gem, the provisions on the report on the use of the previously raised funds, and the Listing Rules of Shenzhen Stock Exchange on the gem In combination with the actual situation of the company, the guidelines for the supervision of listed companies No. 2 – regulatory requirements for the management and use of raised funds of listed companies, the guidelines for the standardized operation of companies listed on the gem of Shenzhen Stock Exchange, the memorandum of business for information disclosure on the gem No. 1 – use of over raised funds and idle raised funds, and the articles of association, The Shenzhen Senior Technology Material Co.Ltd(300568) raised funds management system (hereinafter referred to as “raised funds management system”) has been formulated.

1. Management of funds raised from initial public offering

According to the requirements of the raised funds management system and in combination with the production and operation needs of the company, the company adopts a special account storage system for the raised funds. On November 18, 2016, the 17th meeting of the third board of directors of the company deliberated and adopted the proposal on establishing a special account for raised funds. According to the above proposal, the company and Hengtai Changcai Securities Co., Ltd. (hereinafter referred to as “Hengtai Changcai securities”) signed the tripartite supervision agreement on raised funds with Industrial And Commercial Bank Of China Limited(601398) Shenzhen Yantian sub branch, Bohai Bank Co., Ltd. Shenzhen Branch, China Minsheng Banking Corp.Ltd(600016) Shenzhen Bao’an sub branch and China Citic Bank Corporation Limited(601998) Shenzhen branch respectively. In order to improve the use efficiency of raised funds and maximize the interests of shareholders, the company held the 23rd Meeting of the third board of directors on May 19, 2017 and the 2nd meeting on June 6, 2017

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