Mabpharm Limited — Proxy Solicitation & Information Statement 2026

Feb 10, 2026

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Mabpharm Limited 迈博药业有限公司

(Incorporated in the Cayman Islands with limited liability) (於開曼群島註冊成立的有限公司)

(Stock Code 股份代號:2181)

10 February 2026

Dear registered shareholder(s),

Reminder letter regarding the Arrangement of Electronic Dissemination of Corporate Communications (Note 1)

With reference to the notification letter dated 23 February 2024 titled "Arrangement of Electronic Dissemination of Corporate Communications", Mabpharm Limited (the "Company") is writing to remind you that the Company has adopted electronic dissemination of corporate communications (the "Corporate Communications"), which mean any documents issued or to be issued by 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 auditors' 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.

Please note that both the English and Chinese versions of all future Corporate Communications will be available electronically on the website of the Company at www.mabpharm.cn/tc/index.php and the HKEXnews website at www.hkexnews.hk in place of printed copies.

Solicitation of electronic contact details

The Company has not received your email address for the electronic dissemination of Corporate Communications. To ensure timely receipt of the latest Corporate Communications, the Company recommends you provide your email address by scanning your personalized QR code printed on the enclosed reply form (the "Reply Form"). Alternatively, you may sign and return the Reply Form to the Company's Hong Kong branch 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.

If the Company does not receive a functional email address in your reply, until such time that the functional email address is provided to the Share Registrar, you may (i) be unable to receive any notifications regarding the publication of Corporate Communications; (ii) need to proactively check the Company's website and the HKEXnews website to keep up with the publication of Corporate Communications; and (iii) the Company will send the Actionable Corporate Communications (Note ²) in printed form in the future.

If you want to receive the Corporate Communications in printed form, please complete the enclosed Reply Form and send it to the Share Registrar or send an email to mabpharm-b.ecom@computershare.com.hk specifying your 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 your instruction and will expire thereafter.

By order of the Board Mabpharm Limited Jiao Shuge Chairman

• Note 1: This letter is addressed to registered shareholders of the Company who have not yet provided an email address for the timely receipt of actionable corporate communications. If you are a new registered shareholder, please read the arrangement for the electronic dissemination of corporate communications below and provide your email address as recommended.
• Note 2: Actionable Corporate Communication is any corporate communication that seeks instructions from issuer's securities holders on how they wish to exercise their rights or make an election as the issuer's securities holder.

各位登記股東:

有關以電子方式發佈公司通訊安排的提示信函(附註 ¹)

根據日期為 2024 年 2 月 23 日有關「以電子方式發佈公司通訊之安排」之通知信函所述,迈博药业有限公司(「公司」)謹此提醒 閣下,公司已採用 以電子方式發佈公司通訊(「公司通訊」)之安排,該公司通訊是指公司為向其任何證券持有人提供資訊或提醒其採取行動而發佈或將要發佈的任何文 件,包括但不限於(a) 董事報告、年度帳目以及審計報告副本以及(如適用)財務摘要報告; (b) 中期報告及(如適用)其中期報告摘要; (c) 會議通 知; (d) 上市文件; (e) 通函和 (f) 委任表格。

請注意,所有未來公司通訊的英文版和中文版將在公司網站 www.mabpharm.cn/tc/index.php 和披露易網站 www.hkexnews.hk 上提供,以代替印刷本。

徵集電子聯絡資料

公司尚未收到 閣下就接收公司通訊提供電子郵件地址。為確保及時收到最新的公司通訊,公司建議 閣下透過掃描本函隨附之回條(「回條」)上列 印的 閣下專屬二維碼來提供 閣下的電子郵件地址。或者, 閣下也可以簽署回條並交回公司的香港股份過戶登記分處(「股份過戶處」)香港中央 證券登記有限公司,地址為香港灣仔皇后大道東 183 號合和中心 17M 樓。

如果公司沒有收到 閣下的有效電子郵件地址,直至股份過戶處收到閣下有效的電子郵件地址前, 閣下或(i)無法收到任何有關發佈公司通訊的通 知;(ii)需要主動查看公司網站和披露易網站以留意公司通訊的發佈 ;及(iii)本公司未來將以印刷本形式發送可供採取行動的公司通訊(附註 ²)。

若 閣下希望收取日後公司通訊之印刷本,請填妥隨附之回條並交予股份過戶處或發送電子郵件至 mabpharm-b.ecom@computershare.com.hk,並註 明 閣下的姓名、地址以及收取公司通訊印刷版的要求。 請注意,收取日後公司通訊印刷本之指示由收悉 閣下指示當日起計一年內有效,此後將過 期。

承董事會命 迈博药业有限公司 主席 焦樹閣

2026 年 2 月 10 日

附註 1: 此函件致尚未提供電子郵件地址以接收可供採取行動的公司通訊之公司登記股東。若閣下為新登記股東,請閱讀以下以電子方式發佈公司通訊的安排,並按建議提供閣下的電子郵件地址。

附註 2: 可供採取行動的公司通訊指任何涉及要求發行人的證券持有人指示其擬如何行使其有關證券持有人的權利或作出選擇的公司通訊。

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REPLY	FORM	回條
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Computershare Hong Kong Investor Services Limited (The "Share Registrar") 17M Floor, Hopewell Centre 183 Oueen's Road East, Wan Chai, Hong Kong

香港中央證券登記有限公司 (「股份過戶處」) 香港灣仔皇后大道東 183 號 合和中心 17M 樓

(Please choose ONLY ONE of the options below) (請從以下選項中只選擇其中一項)

Personalized QR Code

Option 1: Provide email address for receipt of future Actionable Corporate Communications^{(Note 3)} of the Company via electronic dissemination by scanning

personalized OR code

掃瞄 專屬二維碼提供電子郵件地址,以接收公司通過電子方式 選項1: 發佈的可供採取行動的未來公司通訊(Mit 3)

Returning this Reply Form is NOT required if Option 1 is chosen.

如選擇了選項 I,無須 父凹本凹條。
Option 2: I/we hereby provide my/our email address in writing for receipt of future Actionable Corporate Communications (Note 3) of the following listed company (the "Company") via electronic dissemination 選項 2: 本人/吾等現以書面提供本人/吾等的電子郵件地址・以確保收到以下上市公司(「公司」)通過電子方式發佈的可供採取行動的未來公司通訊 (問註3)
Name of Securities holder(s) 證券持有人姓名:	Name of the listed company 上市公司名稱:
	Mabpharm Limited 迈博药业有限公司
Email address 電郵地址: (Notes 3 / 附註3)
Option 3: I/we hereby request for receipt of Corporate Communications* in printed form (Please mark "✓" in the below box if applicable)
選項3: 本人/吾等現要求收取公司通訊*印刷版 (如適用・請在以下方格內劃上「✓」號)
receive future Corporate Communications in printed copy and noted that this instruction is valid only for one year starting from the receipt date of instruction. (Notes 5) 收取未來公司通訊的印刷本·並已知悉本指示由收取指示日期起計一年內有效。(附註 5)
and a second	ontact number: 絡電話號碼:	Date: 日期:
· · · · · · · · · · · · · · · · · · ·

• Notes pixt:

• Please complete all your details clearly. If your shares are held in joint names, all of the joint shareholders should jointly sign this Reply Form in order to be valid. 請海楚填妥 關下之所有資料。如關聯名發東,則本回緣須由所有聯名殷東聯合簽署,方為有效。

• Any Reply Form with no signature or otherwise incorrectly completed will be void.
  任何回緣若未有養署或在其他方面填寫不正確,則本回緣務實作廢。

• 任何回緣若未有簽署或在其他方面填寫不正確,則本回錄將會作廢。

• If the Company does not receive a functional email address in your reply, you will be unable to receive notifications regarding the publication of Corporate Communications*. Actionable Corporate Communication is any corporate communication that seeks instructions from issuer's securities holders on how they wish to exercise their rights or make an election as the issuer's securities holder. 如公司沒有收到 简下的有效看于影件地址。简下将無法收到有關發佈公司通訊*的通知 可供靠取行動於公司通訊的公司通訊的公司通訊的公司通訊的公司通訊*的通知。例如,我们可以不同的一个专家的公司通讯的通知,可以未取行的公司通讯的通讯。

• If your provide more than one email address by QR code, email, reply form and/or other means, on their the latest one email address to your other seans, other means, on the latest one email address by QR code, email, reply form and/or other means, of the latest one email address by QR code, email, reply form and/or other means, of the latest one email address by QR code, email, reply form and/or other provided will be registered.

• If you mark '' in the box in Option 3, no email address will be registered and only Corporate Communications* in printed form will be received.

• If you mark '' in the box in Option 3, no email address by QR code and only Corporate Communications in printed form will be received.

• If you mark ''' in the box in Option 3, no email address by QR code and only Corporate Communications in printed form will be received.

• If you mark ''' in the box in Option 3, no email address will be registered and only Corporate Communications in printed form will be received.

• If you mark ''' in the box in Option 3, no email address by QR communications in printed form will be received.

• If you mark ''' in the box in Option 3, no email address will be registered and only Corporate Communications in printed form will be received.

• If you mark ''' in the box in Option 3, no email address by QR communications in printed form will be received.

• If you mark ''' in the box in Option 3, no email address by QR communications in an option 4 and printed

• 為免存疑,在本回條上的任何額外指示,公司將不予處理。

• * Unless otherwise specified, Corporate Communications refer to any documents issued or to be issued by the Company for the information or action of holders of any of its securities, including but not limited to the annual report, interim report, notice of meeting, circular and proxy form. 除非另有註明,公司通訊乃指公司已發出或將予發出以供其任何證券的持有人參照或採取行動的任何文件,其中包括但不限於年報、中期報告、會議通告、通函及代表委任表格。

PERSONAL INFORMATION COLLECTION STATEMENT 收集個人資料聲明

• "Personal Data" in this statement has the same meaning as "personal data" in the Personal Data" in this statement has the same meaning as "personal data" in the Personal Data" in this statement has the same meaning as "personal data" in the Personal Data" in the Personal Data provided in this Reply Porm will be used in connection with, including but not limited to, the Company's electronic dissemination of Corporate Communications and to liaise with you on other matters relating to your holdings in the Company, Your supply of Personal Data to the Company is on a voluntary basis. In case of a failure to provide sufficient information, the Company may not be able to process your instruction and/or request as stated in this Reply Form.

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- 本公司可能無法憲準 圏ト任本回條上所延的指示及/或要求。
Vour Personal Data may be disclosed or transferred by the Company to its subsidiaries, the Share Registrar, and/or other companies or bodies for any of the stated purposes, or when it is required to do so by law and will be retained for such period as may be necessary for our verification and record purposes.
公司可就任何所說明的用途或在法例規定的情況下。將 圖下的個人資料按露或轉移給公司的附屬公司、股份過戶處、及/或其他公司或團體・並將在適當期間保留該等個人資料作核實及紀錄用途。
You have the right to request access to and/or correction of your Personal Data in accordance with the provisions of the PDPO. Any such request for access to and/or correction of your Personal Data should be in writing, by mail to the Hong Kong Privacy Officer of the Share Registrar at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wan Chai, Hong Kong or by email at PrivacyOfficer(computershape com ble PrivacyOfficer@computershare.com.hk.

圖下有權權《私廳條例》的條文查閱及/或修改 圖下的個人資料。任何該等查閱及/或修改個人資料的要求均須以書面方式郵寄至股份過戶處(地址為香港灣仔皇后大道東 183 號合和中心 17M 樓)向香港隱私主任提出,或發送電郵至 PrivacyOfficer@computershare.com.hk。

Mailing Label 郵 寄 標 籤

Computershare Hong Kong Investor Services Limited 香港中央證券登記有限公司 Freepost No. 簡便回郵號碼: 37 Hong Kong 香港

Please cut the mailing label and stick it on an envelope to return this form to us No postage is necessary if posted in Hong Kong.

當 閣下寄回此回條時・請將郵寄標籤剪貼於信封上 如在本港投寄・ 閣下無需支付郵費或貼上郵票。