Nanjing Sample Technology Company Limited — Proxy Solicitation & Information Statement 2023

May 29, 2023

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited (the “Stock Exchange”) takes no responsibility for the contents of this notice, makes no representation as to its accuracy or completeness and expressly disclaims any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this notice.

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(a joint stock limited company incorporated in the People’s Republic of China with limited liability)

(Stock Code: 1708)

NOTICE OF THE DOMESTIC SHAREHOLDERS’ CLASS MEETING

NOTICE IS HEREBY GIVEN that the Domestic Shareholders’ Class Meeting of Nanjing Sample Technology Company Limited (the “ Company ”) will be held at No. 10 Maqun Avenue, Qixia District, Nanjing City, Jiangsu Province, the PRC on Thursday, 29 June 2023 at 12:00 noon (or immediately after the conclusion or adjournment of the H Shares Class Meeting) for the purposes of considering, and if thought fit, passing the following resolution:

SPECIAL RESOLUTION

“ THAT the proposed amendments, details of which was set out in “Appendix - Proposed amendments to the Articles of Association” in the Circular, be and are hereby approved and any one Director be and is hereby authorized to make such other modifications to the proposed amendments to the Articles of Association, where appropriate.”

By Order of the Board Nanjing Sample Technology Company Limited Sha Min* Chairman

Nanjing, the PRC 29 May 2023

* for identification purpose only

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Notes:

1. Any holders of domestic shares of the Company (“Member”) entitled to attend and vote at the Domestic Shareholders’ Class Meeting is entitled to appoint one or more proxies to attend and vote on his behalf. A proxy need not be a member of the Company. In the case of a joint holding, the form of proxy may be signed by any joint holder, but if more than one joint holder is present at the meeting, whether in person or by proxy, that one of the joint holders whose name stands first on the register of Members in respect of the relevant joint holding shall alone be entitled to vote in respect thereof.

2. To be valid, a proxy form and the power of attorney or other authority, if any, under which it is signed or a notarially certified copy of such authority must be deposited to the Company’s registered office at No. 10 Maqun Avenue, Qixia District, Nanjing City, Jiangsu Province, the PRC not less than 24 hours before the time appointed for the holding of the Domestic Shareholders’ Class Meeting or 24 hours before the time appointed for taking the poll. Delivery of the form of proxy shall not preclude a shareholder of the Company from attending and voting in person at the meeting and, in such event, the instrument appointing a proxy shall be deemed to be revoked.

3. Members or their proxies shall present identity proof (and form of proxy in case of proxies) upon attending the Domestic Shareholders’ Class Meeting.

4. The register of members of the Company in Hong Kong will be closed from 20 June 2023 (Tuesday) to 29 June 2023 (Thursday), (both days inclusive).

As at the date hereof, the executive Directors are Mr. Sha Min (Chairman), Mr. Ma Fengkui and Mr. Liu Min, the non-executive Director is Ms. Cai Lijuan; and the independent non-executive Directors are Mr. Hu Hanhui, Mr. Gao Lihui and Mr. Niu Zhongjie.

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