IMPORTANT NOTICE

NOT FOR DISTRIBUTION TO ANY PERSON LOCATED OR RESIDENT IN ANY JURISDICTION WHERE IT IS UNLAWFUL TO DISTRIBUTE THIS DOCUMENT

IMPORTANT: You must read the following disclaimer before continuing. The following disclaimer applies to the attached offer to purchase (as it may be supplemented or amended from time to time, the "Tender Offer Memorandum") and you are therefore required to read this disclaimer page carefully before accessing, reading or making any other use of the Tender Offer Memorandum. By accessing, reading or making any other use of the Tender Offer Memorandum, you agree (in addition to giving the representations below) to be bound by the following terms and conditions, including any modifications to them from time to time, each time you receive any information from Bank of China (Hong Kong) Limited (the "Company"), Citigroup Global Markets Limited and Goldman Sachs (Asia) L.L.C. as dealer managers (the "Dealer Managers") or D.F. King as information and tender agent (the "Information and Tender Agent"), as a result of such access. Capitalized terms used but not otherwise defined in this disclaimer shall have the meaning given to them in the Tender Offer Memorandum.

THIS ELECTRONIC TRANSMISSION DOES NOT CONTAIN OR CONSTITUTE AN OFFER OF, OR THE SOLICITATION OF AN OFFER TO BUY OR SUBSCRIBE FOR, SECURITIES TO ANY PERSON IN ANY JURISDICTION WHERE SUCH AN OFFER IS UNLAWFUL.

THE TENDER OFFER MEMORANDUM MAY NOT BE FORWARDED OR DISTRIBUTED TO ANY OTHER PERSON AND MAY NOT BE REPRODUCED IN ANY MANNER WHATSOEVER. ANY FORWARDING, DISTRIBUTION OR REPRODUCTION OF THE TENDER OFFER MEMORANDUM IN WHOLE OR IN PART IS UNAUTHORIZED. FAILURE TO COMPLY WITH THESE REQUIREMENTS MAY RESULT IN A VIOLATION OF THE APPLICABLE LAWS.

Confirmation of your representation: In order to be eligible to view the Tender Offer Memorandum or make an investment decision with respect to the Offer (as defined herein), you must be able to participate lawfully in the invitation by the Company to Holders (as defined herein) of the Notes (as defined herein) to tender their Notes for purchase by the Company for cash (the "Offer") on the terms and subject to the conditions set out in the Tender Offer Memorandum, including the offer and distribution restrictions set out therein (the "Offer and Distribution Restrictions"). The Tender Offer Memorandum was sent at your request and by accessing the Tender Offer Memorandum you shall be deemed to have represented to the Company, the Dealer Managers and the Information and Tender Agent that:

  1. you are a Holder or a beneficial owner of the U.S.$2,500,000,000 5.55% Subordinated Notes due 2020 issued by the Company;
  2. you are a person to whom it is lawful to send the Tender Offer Memorandum or to make an invitation pursuant to the Offer under all applicable laws, including the Offer and Distribution Restrictions; and
  3. you consent to delivery of the Tender Offer Memorandum to you by electronic transmission.

The Tender Offer Memorandum has been sent to you in an electronic form. You are reminded that documents transmitted via this medium may be altered or changed during the process of transmission and consequently none of the Company, the Dealer Managers, the Information and Tender Agent or any person who controls, or any director, officer, employee, agent, affiliate or adviser of, any such person accepts any liability or responsibility whatsoever in respect of any difference between the Tender Offer Memorandum distributed to you in electronic format and the hard copy version available to you on request from the Dealer Managers or the Information and Tender Agent.

You are otherwise reminded that the Tender Offer Memorandum has been sent to you on the basis that you are a person into whose possession the Tender Offer Memorandum may be lawfully delivered in accordance with the laws of the jurisdiction in which you are located or resident and you may not, nor are you authorized to, deliver the Tender Offer Memorandum to any other person or make the Tender Offer Memorandum publicly available.

Any materials relating to the Offer do not constitute, and may not be used in connection with, any form of offer or solicitation in any place where such offers or solicitations are not permitted by law. In those jurisdictions where securities or other laws require the Offer to be made by a licensed broker or dealer and the Dealer Managers or, where the context so requires, any of its respective affiliates is such a licensed broker or dealer in that jurisdiction, the Offer shall be deemed to be made on behalf of the Company by the Dealer Managers or such affiliate (as the case may be) in such jurisdiction.

Restrictions: Nothing in this electronic transmission constitutes an offer to buy or the solicitation of an offer to sell securities in any jurisdiction or in any circumstances in which such offer or solicitation would be unlawful.

The distribution of the Tender Offer Memorandum in certain jurisdictions may be restricted by law. Persons into whose possession the Tender Offer Memorandum comes are required by the Company, the Dealer Managers and the Information and Tender Agent to inform themselves about, and to observe, any such restrictions.

The only role of the Dealer Managers and the Information and Tender Agent in the preparation of this Tender Offer Memorandum has been to confirm to the Company that their respective contact details are accurate as at the date of this Tender Offer Memorandum. Apart from the foregoing, neither the Dealer Managers nor the Information and Tender Agent has independently verified the information contained in this Tender Offer Memorandum. Accordingly, no representation, warranty or undertaking, express or implied, is made, and no responsibility is accepted, by them as to the accuracy or completeness of this Tender Offer Memorandum or any further information supplied by the Company in connection with the Offer.

If you have recently sold or otherwise transferred all or any of your holding(s) of the Notes referred to below, you should contact the Information and Tender Agent.

You are responsible for protecting against viruses and other destructive items. Your use of this electronic communication is at your own risk. It is your responsibility to take precautions to ensure that this electronic communication is free from viruses and other items of a destructive nature.