Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) : verification report on the use of the previously raised funds

Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) previous use of raised funds

Assurance Report

Zhitong Certified Public Accountants (special general partnership)

catalogue

Previous verification report on the use of raised funds

Report on the use of the company’s previously raised funds 1-4

Comparison table 5 of the use of the previously raised funds

Comparison table 6 of the benefits achieved by the investment projects with the previously raised funds

Zhitong Certified Public Accountants (special general partnership) 22 Jianguomenwai street, Chaoyang District, Beijing, China

5th floor, set square, 100004

Tel. + 86 1085665588

Fax + 86 1085665120

www.grantthornton. cn.

Previous verification report on the use of raised funds

Zhi Tong Zhi Zi (2022) No. 332a005268 Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) all shareholders:

We have reviewed the attached report on the use of funds raised by Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) (hereinafter referred to as Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company) as of December 31, 2021, the comparison table on the use of funds raised by the previous time and the comparison table on the benefits realized by the investment projects with funds raised by the previous time. It is the responsibility of the board of directors of Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company to prepare the above-mentioned report on the use of funds raised in the previous time and the comparison table in accordance with the provisions on the report on the use of funds raised in the previous time (Zheng Jian FA Zi [2007] No. 500) of China Securities Regulatory Commission. Our responsibility is to express assurance opinions on the above-mentioned report on the use of funds raised in the previous time prepared by the board of directors of Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company on the basis of audit.

We plan and implement the audit work 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 ensure that there are no major misstatements in the above report and comparison table on the use of previously raised funds. During the audit, we implemented audit procedures that we considered necessary, including checking accounting records, in combination with the actual situation of Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company. We believe that our audit work provides a reasonable basis for expressing opinions.

We believe that the report on the use of the previously raised funds, the comparison table of the use of the previously raised funds and the comparison table of the realized benefits of the investment projects of the previously raised funds prepared by the board of directors of Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company as of December 31, 2021 comply with the provisions on the report on the use of the previously raised funds (Zheng Jian FA FA Zi [2007] No. 500) of the CSRC, It truthfully reflects the use of the funds raised by Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company last time.

This report is only for use when Hangzhou Prevail Optoelectronic Equipment Co.Ltd(300710) company applies for issuing shares to specific objects, 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, April 6, 2002

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