Beijing SinoHytec Company Limited — Proxy Solicitation & Information Statement 2023

Feb 21, 2023

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

(Stock Code: 2402)

Form of Proxy for 2023 First Extraordinary General Meeting (Applicable to H Shareholders)

Number of H Shares to which this form of proxy relates [(Note][1)]

I/We [(Note][2)] (name)

of (address)

(Note 3) H Shares of

being the registered holder(s) of H Shares of RMB1.00 each in the share capital of Beijing SinoHytec Co., Ltd. (北京億華通科技股份有限公司) (the “ Company ”) hereby appoint the Chairman of the Meeting, or [(Note][4)]

of (address)

as my/our proxy to attend and vote for me/us on my/our behalf as directed below, or if no such indication is given then to vote as my/our proxy thinks fit, at the 2023 first extraordinary general meeting (the “ EGM ”) to be held at Room C701, 7th Floor, Block C, Building B-6, Dongsheng Science Park, Zhongguancun, No. 66, Xixiaokou Road, Haidian District, Beijing, China on Thursday, March 9, 2023 at 2:00 p.m. or at any adjournment or postponement thereof.

SPECIAL RESOLUTION (Note A)FOR (Note 5)AGAINST (Note 5)ABSTAIN (Note 5)1.Resolution regarding the change of registered capital, theamendmentstothe Articlesof Associationandtheregistration for industrial and commercial changes and theamendments to corresponding rules of the Rules ofProcedures of the General Meetings.ORDINARY RESOLUTION (Note A)FOR (Note 5)AGAINST (Note 5)ABSTAIN (Note 5)2.Resolutionregardingtheordinaryrelatedpartytransactions in 2023.

Note A: Unless otherwise specified, capitalized terms used herein shall have the same meanings as those defined in the circular dated February 22, 2023.

Date:

Signature of Shareholder(s) [(Note][6)] :

Notes:

1. Please insert the number of shares registered in your name(s) to which this proxy relates. If a number is inserted, this form of proxy will be deemed to relate only to those shares. If no number is inserted, the form of proxy will be deemed to relate to all shares registered in your name(s) (whether alone or jointly with others).

2. Please insert the full name(s) and address(es) as registered in the register of members for H Shares of the company in BLOCK LETTERS . The name of all joint registered holders should be stated.

3. Please insert the number of shares of the Company registered in your name(s) and delete as appropriate.

4. If any proxy other than the Chairman of the Meeting is preferred, please strike out the words “the Chairman of the Meeting, or” and insert the name and address of the proxy desired in the space provided. A shareholder may appoint one or more proxies to attend and vote at the Meeting on his/her behalf. A proxy needs not be a shareholder of the Company. ANY ALTERATION MADE TO THIS FORM OF PROXY MUST BE INITIALED BY THE PERSON WHO SIGNS IT.

5. IMPORTANT: IF YOU WISH TO VOTE FOR ANY RESOLUTION, PLEASE PUT A TICK IN THE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST ANY RESOLUTION, PLEASE PUT A TICK IN THE BOX MARKED “AGAINST”. IF YOU WISH TO VOTE ABSTENTION ON ANY RESOLUTION, PLEASE PUT A TICK IN THE BOX MARKED “ABSTAIN”. If the form returned is duly signed but without specific direction on any of the proposed resolutions, the proxy is entitled to vote or abstain at his/her discretion in respect of all resolutions; or if in respect of a particular proposed resolution there is no specific direction, the proxy is entitled, in relation to that particular proposed resolution, to vote or abstain at his/her discretion. A proxy will also be entitled to vote at his/her discretion on any resolution properly put to the EGM other than those set out in the notice convening the EGM.

6. This form of proxy must be signed by you or your attorney duly authorized in writing or, in the case of a legal person, must be either executed under its common seal or under the hand of its legal representative or attorney or other officer duly authorized.

7. If an attending shareholder or proxy casts a vote of abstention or abstains from voting in respect of a resolution, the Share(s) represented by that shareholder or proxy will be regarded as valid votes when the Company counts the votes with respect to that resolution.

8. To be valid, this form of proxy and, if such proxy is signed by a person on behalf of the appointer pursuant to a power of attorney or other authority, a notarially certified copy of that power of attorney or other authority must be delivered to the H share registrar of the Company, Tricor Investor Services Limited at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong as soon as possible but in any event by not later than 24 hours before the time fixed for holding of the EGM (i.e. before 2:00 p.m. on Wednesday, March 8, 2023) or any adjournment or postponement thereof.

9. Completion and return of this form of proxy shall not preclude you from attending and voting in person at the EGM or any adjourned or postponed meeting(s) if you so wish. In such event, the instrument appointing a proxy shall be deemed to be revoked.

10. Shareholders or his/her proxy(ies) shall produce their identification documents when attending the EGM in person or by proxy.