BOC Hong Kong : Letter and Request Form to Existing Registered Shareholders - (1) Notification on publication of Corporate Communications containing Notice of 2017 Annual General Meeting and Notice of Extraordinary General Meeting; and (2) Election of Language and Means of Receipt of Corporate Communications

(Incorporated in Hong Kong with limited liability)

（於香港註冊成立之有限公司）

（Stock Code股份代號：2388）

Dear Registered Shareholder,

20 April 2017

Those Shareholders who (a) have received a printed copy of the 2016 Annual Report in either the English or Chinese language only and would like to receive a printed copy in the other language; or (b) have chosen (or are deemed to have consented) to access the Corporate Communications (as defined below) posted on BOCHK's website in lieu of receiving printed copies (the "Website Option") and would like to receive a printed copy now; or (c) wish to change their choice of language and means of receipt of all corporate communications issued or to be issued by BOCHK to Shareholders including but not limited to, annual reports and accounts, interim reports, notices of meetings, listing documents, circulars and proxy forms (collectively the "Corporate Communications") of BOCHK, please complete Part A and/or Part B of the Request Form overleaf and return it by post, using the mailing label at the bottom of the Request Form (no postage stamp is necessary if posted in Hong Kong; otherwise please affix an appropriate stamp), or by hand delivery to BOCHK's share registrar, Computershare Hong Kong Investor Services Limited ("BOCHK's Registrar") at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wan Chai, Hong Kong. You may also send a scanned copy of the Request Form duly completed and signed to BOCHK's Registrar via email tobochk.ecom@computershare.com.hk. The Request Form may also be downloaded from BOCHK's website atwww.bochk.comor HKEx's website atwww.hkexnews.hk.

You are entitled at any time by reasonable notice in writing to BOCHK's Registrar to change your choice of language and means of receiving Corporate Communications. Further, if you have chosen (or are deemed to have consented) to access the Corporate Communications posted on BOCHK's website and have any difficulty in receiving or gaining access to the relevant documents, for any reason, BOCHK's Registrar will promptly upon your notice send the printed form of the same to you free of charge. The aforesaid notice should contain your name, address, contact telephone number and relevant request and be sent to BOCHK's Registrar at the address as mentioned above or via email tobochk.ecom@computershare.com.hk.

Please note that printed English and Chinese versions of Corporate Communications of BOCHK are and will be available from BOCHK or BOCHK's Registrar upon request, and both language versions are or will be available on BOCHK's website atwww.bochk.comand HKEx's website atwww.hkexnews.hk.

You are encouraged to access the Corporate Communications posted on BOCHK's website in lieu of receiving printed copies, which helps to reduce the impact on the environment and, we believe, is a more convenient and prompt method of communication with Shareholders.

If you have any queries relating to this letter, please do not hesitate to call BOCHK's enquiry hotline at (852) 2846 2700 during business hours from 9:00 a.m. to 6:00 p.m. from Monday to Friday, excluding Hong Kong public holidays.

敬啟者：

Yours faithfully, For and on behalf of

BOC Hong Kong (Holdings) Limited Luo Nan

Company Secretary

Registered Shareholder's information (English name and address)

登記股東資料（英文姓名及地址）

除文義另有規定外，本要求表格中所用詞彙具有日期為2017年4月20日中銀香港致其現有登記股東的函件中所界定的涵義。

(Please tick ONLY ONE boxNote 1（)

請以「P」號選擇一項附註1）

Please send me/us a printed version of the 2016 Annual Report in:

請將2016年報的以下印刷本寄送予本人╱吾等：

printed English versiononly; or

謹英文印刷本；或

printed Chinese versiononly; or

謹中文印刷本；或

both English and Chinese printed versions.

英文及中文印刷本。

I/We would like to receive future Corporate Communications of BOCHK in the manner as indicated below:

本人╱吾等希望以下列方式收取中銀香港日後刊發的公司通訊文件：

(Please tick ONLY ONE boxNote 1（)

請以「P」號選擇一項附註1）

to access the Corporate Communications posted on BOCHK's website atwww.bochk.comin lieu of receiving printed copies (the "Website Option"), and to receive a notification of the publication of the Corporate Communications on the website of BOCHK; or以閱覽登載於中銀香港網站（www.bochk.com）的公司通訊文件，以代替收取印刷本（「網上閱覽方式」），並收取有關公司通訊文件已於中銀

香港網站上刊發的通知；或

to receive the printed English version only; or

只收取英文印刷本；或

to receive the printed Chinese version only; or

只收取中文印刷本；或

to receive both English and Chinese versions.

收取英文及中文印刷本。

Contact telephone number(s): Signature(s)Note2:

聯絡電話號碼： 簽名附註2：

Date:

BOCH-20042017-1(0)

日期：

Notes 附註：

1. Please tick only one box under each of Part A and Part B on this form. Any Request Form with more than one box ticked under each of Part A and Part B, with no box ticked, with no signature or otherwise incorrectly completed will be void.

1. 在本要求表格的甲部及乙部只可各自選擇一項。如在本要求表格的甲部及乙部各自作出超過一項選擇、或未有作出選擇、或未有簽署、或在其他方面填寫不正確，則本要求表格將會作廢。

1. If your shares are held in joint names, all joint shareholders OR the joint shareholder whose name stands first on the Register of Members of BOCHK in respect of the joint holding should sign on this Request Form in order to be valid.

1. 如閣下的股份以聯名持有，則本要求表格須由所有聯名股東或該名於中銀香港股東名冊上就聯名持有股份其姓名位列首位的聯名股東簽署，方為有效。

1. Please return this Request Form by cutting the mailing label at the bottom of this form and stick it on an envelope according to the indications and mail this Request Form to BOCHK's Registrar, Computershare Hong Kong Investor Services Limited.

1. 請按指示將本要求表格底部的郵寄標籤剪貼於信封上，並寄回中銀香港股份過戶登記處香港中央證券登記有限公司。

1. For the avoidance of doubt, we do not accept any other instructions given on this Request Form.

為免存疑，任何在本要求表格上的額外指示，中銀香港將不予處理。

閣下寄回此要求表格時，請將郵寄標籤剪貼於信封上。

如在本港投寄毋須貼上郵票。

Please cut the mailing label and stick this on an envelope to return this Request Form to us.

No postage stamp is necessary if posted in Hong Kong.

香港中央證券登記有限公司

香港 Hong Kong

郵寄標籤 MAILING LABEL