Arrangement of Dissemination of Corporate Communications

Corporate Communication refers to any document issued or to be issued by Alphamab Oncology (the “Company”) for the information or action of holders of any of its securities, including but not limited to (a) the directors’ report, its annual accounts together with a copy of the auditor’s report and, where applicable, its summary financial report; (b) the interim report and, where applicable, its summary interim report; (c) a notice of meeting; (d) a listing document; (e) a circular; and (f) a proxy form.

The English and Chinese versions of Corporate Communications of the Company are available on the website of the Company at www.alphamabonc.com and the HKEXnews website at www.hkexnews.hk. The shareholders of the Company (the “Shareholders”) who would like to be notified when the Company publishes its Corporate Communications may register for the free News Alerts service on the website of The Stock Exchange of Hong Kong Limited (the “Stock Exchange”).

Pursuant to the Rules Governing the Listing of Securities on the Stock Exchange (the “Listing Rules”), the Company makes all Corporate Communications (other than Actionable Corporate Communications, please refer to below) available to all Shareholders by electronic means through the website of the Company and the HKEXnews website (the “Electronic Version”).

Arrangements with registered Shareholders

To ensure timely receipt of the Actionable Corporate Communications, registered Shareholders are recommended to complete and return the reply form to the Company’s Hong Kong share registrar (the “Share Registrar”), Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong, or send an email to alphamab-b.ecom@computershare.com.hk specifying the name and email address. If no functional email address is provided by a registered Shareholder, until such time that the functional email address is provided to the Share Registrar, the Company will send the Actionable Corporate Communications in printed form. If a registered Shareholder provides more than one email address via any means, only the latest email address provided will be registered.

“Actionable Corporate Communications” are any corporate communications that seek instructions from Shareholders on how they wish to exercise their rights or make an election as a Shareholder. They include a) election forms in connection with a dividend payment; b) excess application forms in connection with a rights issue or open offer; c) application forms for assured entitlement under an open offer; d) blue application forms for a preferential offering; e) pink application forms for employee reserved shares; f) acceptance forms in connection with takeovers, mergers and share buy-backs; and g) provisional allotment letters in connection with a rights issue, but exclude notice of meeting or proxy form.

A registered Shareholder may request to receive the Corporate Communications in printed form. Please refer to the below section headed “Request for Corporate Communications in printed form” for details.

Please note that no email address of a registered Shareholder who has given request for receipt of Corporate Communications in printed form will be registered and only Corporate Communications (including Actionable Corporate Communications) in printed form will be provided.

Arrangements with non-registered Shareholders

Non-registered Shareholders need to proactively check the Company’s website and the HKEXnews website to keep up with the publication of Corporate Communications.

Non-registered Shareholders who wish to receive Actionable Corporate Communications pursuant to the Listing Rules should liaise with their bank(s), broker(s), custodian(s), nominee(s) or HKSCC Nominees Limited through which their shares are held (collectively, the “Intermediaries”) and provide their email addresses to their Intermediaries.

A non-registered Shareholder may request to receive the Corporate Communications in printed form. Please refer to the below section headed “Request for Corporate Communications in printed form” for details.

Request for Corporate Communications in printed form

English, Chinese or both versions, may complete and return the relevant reply form to the Share Registrar, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong or send an email to alphamab-b.ecom@computershare.com.hk specifying his or her name, address and request to receive the Corporate Communications in printed form.

Please note that such instruction shall be valid for one year starting from the receipt date of the instruction and will expire thereafter. Further request in writing will be required if a Shareholder prefers to continue receiving printed form of future Corporate Communications.

Reply forms for registered Shareholders and non-registered Shareholders to request for receipt of Corporate Communications in printed form are available for download on the Company’s website and the HKEXnews website.

If you are a registered Shareholder, please complete and sign the applicable Reply Form below:

Reply Form for Registered Shareholder

If you are a non-registered Shareholder, please complete and sign the applicable Reply Form below:

Reply Form for Non-Registered Shareholder