Beijing Digital Telecom : WHITE FORM OF ACCEPTANCE AND TRANSFER OF H SHARE(S) OF RMB1 EACH IN THE ISSUED SHARE CAPITAL OF BEIJING DIGITAL TELECOM CO., LTD.

THIS WHITE FORM OF ACCEPTANCE AND TRANSFER IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to any aspect of this WHITE Form of Acceptance and Transfer or as to the action to be taken, you should consult your licensed securities dealer or registered institution in securities, bank manager, solicitor, professional accountant or other professional adviser.

If you have sold or otherwise transferred all your H Shares, you should at once hand this WHITE Form of Acceptance and Transfer and the accompanying Composite Document to the purchaser(s) or other transferee(s) or to the licensed securities dealer or registered institution in securities or other agent through whom the sale or transfer was effected for transmission to the purchaser(s) or transferee(s).

The making of the H Share Offer to persons with a registered address in jurisdiction outside Hong Kong may be prohibited or affected by the laws of the relevant jurisdiction. Holders of the H Shares who are citizens or residents or nationals of jurisdictions outside Hong Kong should obtain appropriate legal advice on, inform themselves about and observe any applicable legal requirement. It is the responsibility of each person who wishes to accept the H Share Offer to satisfy himself, herself or itself as to the full observance of the laws of the relevant jurisdiction in connection therewith, including the obtaining of any governmental, exchange control or other consents which may be required, the compliance with other necessary formalities or legal requirements and the payment of any transfer or other taxes due in respect of such jurisdiction.

The H Share Offer is conditional. This WHITE Form of Acceptance and Transfer should be read in conjunction with the Composite Document. The English texts of this Form shall prevail over their respective Chinese texts.

HOW TO COMPLETE THIS WHITE FORM OF ACCEPTANCE AND TRANSFER

1. To accept the H Share Offer made by Guotai Junan Securities for and on behalf of Hong Kong Huafa to acquire your H Shares, you should complete and sign this WHITE Form of Acceptance and Transfer and forward this entire WHITE Form of Acceptance and Transfer together with the relevant H Share certificate(s) and/or transfer receipt(s) and/or any other document(s) of title (and/or any satisfactory indemnity or indemnities required in respect thereof) for the number of H Shares in respect of which you intend to accept the H Share Offer, by post or by hand marked "Beijing Digital Telecom Co., Ltd. - H Share Offer" on the envelope to the H Share Registrar, Computershare Hong Kong Investor Services Limited at 17M Floor, Hopewell Centre, 183 Queen's Road East, Wanchai, Hong Kong, as soon as possible, but in any event so as to reach the H Share Registrar by no later than 4:00 p.m. (Hong Kong time) on 21 May 2021 or such later time and/or date as the Offeror Group may determine and announce in accordance with the Takeovers Code. The provisions of
   Appendix I to the Composite Document are incorporated into and form part of this WHITE Form of Acceptance and Transfer. Holders of the H Shares are advised to read the Composite Document before completing this WHITE Form of Acceptance and Transfer.
2. Procedures for accepting the H Share Offer
   If you wish to accept the H Share Offer, you should:
3. 1. insert in the box titled "Total number of H Share(s) to be transferred" the total number of H Shares for which you wish to accept the H Share Offer; and
   2. sign the WHITE Form of Acceptance and Transfer and enclose the relevant H Share certificate(s), transfer receipt(s) and/or any other document(s) of title (and/or any satisfactory indemnity or indemnities in respect thereof).
4. If you are holding H Shares on behalf of another person as nominee or otherwise, you should refer to the section headed "Procedures for Acceptance of the Offers and Settlements" in Appendix I to the Composite Document in particular as to the matters which you should consider.
5. Warning: Insert the total number of H Shares for which the H Share Offer is accepted. If no number is inserted or a number inserted is greater or smaller than those represented by the certificates for H Share(s) tendered for acceptance of the H Share Offer, this WHITE Form of Acceptance and Transfer will be returned to you for correction and resubmission. Any corrected WHITE Form of Acceptance and Transfer must be resubmitted and received by the H Share Registrar by no later than 4:00 p.m. on the Closing Date or such later than and/or date as the Offeror Group may determine and announce in accordance with the Takeovers Code.

WHITE FORM OF ACCEPTANCE AND TRANSFER IN RESPECT OF THE H SHARE OFFER To: Hong Kong Huafa, Guotai Junan Securities and the H Share Registrar

1. My/Our execution of this WHITE Form of Acceptance and Transfer (whether or not such WHITE Form of Acceptance and Transfer is dated) shall be binding on my/our successors and assigns, and shall constitute:
2. 1. my/our irrevocable acceptance of the H Share Offer, made by Guotai Junan Securities on behalf of Hong Kong Huafa, as contained in the Composite Document for the consideration and on and subject to the terms therein and herein mentioned (including the terms set out under the heading "How to complete this WHITE Form of Acceptance and Transfer"), in respect of the number of H Shares specified in this WHITE Form of Acceptance and Transfer;
   2. my/our irrevocable instruction and authority to Hong Kong Huafa and/or Guotai Junan Securities or their respective agent(s) to collect from the Company or the H Share Registrar on my/our behalf the H Share certificate(s) in respect of H Shares due to be issued to me/us in accordance with, and against surrender of, the enclosed transfer receipt(s) and/or other document(s) of title (if any) (and/or any satisfactory indemnity or indemnities in respect thereof), which has/have been duly signed by me/us and to deliver the same to the H Share Registrar and to authorise and instruct the H Share Registrar to hold such H Share certificate(s) subject to the terms and conditions of the H Share Offer, as if it was/they were H Share certificate(s) delivered to the H Share Registrar together with this WHITE Form of Acceptance and Transfer;
   3. my/our irrevocable instruction and authority to Hong Kong Huafa and/or Guatai Junan Securities or any of their respective agent(s) to send a cheque crossed "Not negotiable - account payee only" drawn in my/our favour for the cash consideration to which I/we shall have become entitled under the terms of the H Share Offer (less seller's Hong Kong ad valorem stamp duty payable by me/us in connection with my/our acceptance of the H Share Offer), by ordinary post at my/our own risk to the person named at the address stated below or, if no name and address is stated below, to me or the first-named of us (in the case of joint registered Independent Shareholders/Overseas Independent Shareholders) at the registered address shown in the register of members of the Company as soon as possible but in any event within seven Business Days (as defined under the Takeovers Code) following the later of the date on which the H Share Offer becomes, or is declared, unconditional and the date of receipt of all the relevant documents by the Registrar to render the acceptance under the Offer complete and valid;
      (Insert below the name and address of the person to whom the cheque is to be sent if different from the registered H Shareholder or the first-named of the joint registered holders of the H Shares)
      Name: (in block capitals)
      Address: (in block capitals)
   4. my/our irrevocable instruction and authority to Hong Kong Huafa and/or Guotai Junan Securities and/or the H Share Registrar and/or such person or persons as either of them may direct for the purpose, on my/our behalf, to make and execute the contract note as required by the Stamp Duty Ordinance (Chapter 117 of the Laws of Hong Kong) to be made and executed by me/us as the seller(s) of the H Shares to be sold by me/us under the H Share Offer and to cause the same to be stamped and to cause an endorsement to be made on this WHITE Form of Acceptance and Transfer in accordance with the provisions of that Ordinance;
   5. my/our irrevocable instruction and authority to each of Hong Kong Huafa and/or Guotai Junan Securities and/or such person or persons as any of them may direct to complete and execute any document on my/our behalf in connection with my/our acceptance of the H Share Offer and to do any other act that may be necessary or expedient for the purpose of vesting in Hong Kong Huafa or such person or persons as it may direct my/our H Share(s) tendered for acceptance under the H Share Offer;
   6. my/our undertaking to execute such further documents and to do such acts and things by way of further assurance as may be necessary or desirable to transfer my/our H Share(s) tendered for acceptance under the H Share Offer to Hong Kong Huafa or such person or persons as it may direct free from all liens, charges, options, claims, equities, adverse interests, third party rights or encumbrances whatsoever and together with all rights accruing or attaching thereto on or after the date on which the H Share Offer is made, including, without limitation, the right to receive all future dividends and other distributions declared, paid or made, if any, on or after the date on which the H Share Offer is made, in respect of the H Share(s) tendered for acceptance under the H Share Offer; and
   7. my/our agreement to ratify each and every act or thing done or effected by Hong Kong Huafa and/or Guotai Junan Securities or their respective agent(s) or such person or persons as it/they may direct on the exercise of any of the authorities contained herein.
3. In the event that my/our acceptance is not valid or is treated as invalid in accordance with the terms of the H Share Offer, all instructions, authorisations and undertakings contained in paragraph 1 above shall cease and in which event, I/we authorise and request you to return to me/us my/our H Share certificate(s) and/or transfer receipt(s) and/or any other document(s) of title (and/or any satisfactory indemnity or indemnities in respect thereof), together with this WHITE Form of Acceptance and Transfer duly cancelled, by post at my/our risk to the person(s) and address stated above or, if no name and address is stated, to me or the first-named of us (in the case of joint registered holders of the H Shares) at the address shown in the register of members of the Company.
   Note: Where you have sent one or more transfer receipt(s) and in the meantime the relevant H Share certificate(s) has/have been collected by Hong Kong Huafa and/or Guotai Junan
4. 
   Securities or their respective agent(s) from the Company or the H Share Registrar on your behalf, you will be sent such H Share certificate(s) in lieu of the transfer receipt(s).
5. I/We enclose the relevant H Share certificate(s) and/or transfer receipt(s) and/or any other document(s) of title (and/or any satisfactory indemnity or indemnities in respect thereof) for the whole/part of my/our holding of H Shares which is/are to be held by you on the terms of the H Share Offer. I/We understand that no acknowledgement of receipt of any WHITE Form of Acceptance and Transfer or any H Share certificate(s) and/or any other documents will be given. I/We further understand that all documents will be sent to me/us by ordinary post at my/our own risk.
6. I/We hereby warrant and represent to you that, I am/we are the registered H Shareholder(s) of the number of H Shares specified in this WHITE Form of Acceptance and Transfer and I/we have the full right, power and authority to sell and pass the title and ownership of such H Shares to Hong Kong Huafa by way of acceptance of the H Share Offer.
7. I/We hereby warrant and represent to Hong Kong Huafa and the Company that I/we have satisfied the laws of the jurisdiction where my/our address is stated in the register of members of the Company in connection with my/our acceptance of the H Share Offer, including the obtaining of any governmental, exchange control or other consents and any registration or filing which may be required and the compliance with all necessary formalities, regulatory and/ or legal requirements.
8. I/We hereby warrant and represent to Hong Kong Huafa and the Company that I/we shall be fully responsible for payment of any transfer or other taxes and duties payable in respect of the jurisdiction where my/our address is located as set out in the register of members of the Company in connection with my/our acceptance of the H Share Offer.
9. I/We understand that acceptance of the H Share Offer by me/us will constitute a warranty by me/us to Hong Kong Huafa that the number of H Share(s) specified in this WHITE Form of Acceptance and Transfer are fully paid and will be sold free from all liens, charges, encumbrances, rights of pre-emption and any other third party rights of any nature and together with all rights attaching to them as at the date hereof, including the right to receive in full all dividends and other distributions, if any, declared, made or paid on or after the date on which the H Share Offer is made.
10. I/We acknowledge that, save as expressly provided in the Composite Document and in this WHITE Form of Acceptance and Transfer, all the acceptance, instructions, authorities and undertakings hereby given shall be unconditional and irrevocable.
11. I/We acknowledge that my/our H Shares sold to Hong Kong Huafa by way of acceptance of the H Share Offer will be registered under the name of Hong Kong Huafa and/or its nominee(s).

本白色接納及轉讓表格為要件，請即處理。 閣下如對本白色接納及轉讓表格的任何方面或應採取的行動有任何疑問，應諮詢 閣下的持牌證券商或 註冊證券機構、銀行經理、律師、專業會計師或其他專業顧問。

閣下如已出售或出讓名下的所有H 股，應立即將本白色接納及轉讓表格連同隨附綜合文件交予買方或其他承讓人，或經手買賣或轉讓的持牌證券商或 註冊證券機構或其他代理人以便轉交買方及承讓人。

向註冊地址位於香港境外司法權區的人士提出H 股要約可能會遭受相關司法權區的法律禁止或受到影響。H 股持有人倘為香港境外司法權區的公民、 居民或國民，應尋求有關任何適用法律規定的適當法律意見，並知悉及遵守有關規定。有意接納H 股要約的各人士有責任確保彼等已就接納H 股要約 全面遵守相關司法權區的法律，包括取得可能所需的任何政府、外匯管制或其他同意，遵守其他必要手續或法律規定，以及支付有關司法權區的任何 轉讓或其他稅項。

H 股要約屬有條件要約。本白色接納及轉讓表格應與綜合文件一併閱覽。本表格的中英文本如有任何歧義，概以英文本為準。

如何填寫本白色接納及轉讓表格

1. 如欲接納國泰君安證券代表香港華發收購 閣下名下H 股而提出的H 股要約， 閣下應填妥及簽署本白色接納及轉讓表格，並將整份白色接納及 轉讓表格連同 閣下擬接納H 股要約的H 股數目的有關H 股股票及╱或過戶收據及╱或任何其他所有權文件（及╱或就此所需的任何獲信納彌償保 證）送交H 股證券登記處，信封面註明「北京迪信通商貿股份有限公司－H 股要約」，儘快以郵寄或專人送遞方式送達H 股證券登記處香港中央證券 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），惟無論如何須不遲於2021 年5 月21 日下午四時正（香港時間）或要約人集團可能 根據收購守則釐定及公佈的有關較後時間及╱或日期。綜合文件附錄一的條文已納入並構成本白色接納及轉讓表格的一部分。H 股持有人於填寫 本白色接納及轉讓表格前，務請細閱綜合文件。
2. 接納H 股要約的程序
   閣下如欲接納H 股要約，應：

1. 1. 於註明「將予轉讓之H 股總數」的空格內填寫 閣下有意接納H 股要約的H 股總數；及
   2. 簽署白色接納及轉讓表格並附上有關H 股股票、過戶收據及╱或任何其他所有權文件（及╱或就此所需的任何獲信納彌償保證）。
2. 倘 閣下以代名人或其他身份代表另一名人士持有H股， 閣下應參閱綜合文件附錄一「接納要約及結算的程序」一節，尤其有關 閣下應考慮的事宜。
3. 警告：請填上接納H 股要約的H 股總數。倘無填上數目或所填數目大於或小於 閣下用作接納H 股要約而提供的H 股股票所代表之H 股數目，則本 白色接納及轉讓表格將退回予 閣下更正及重新遞交。任何經更正的白色接納及轉讓表格須不遲於截止日期下午四時正（或要約人集團可能根據 收購守則釐定及公佈的有關較後時間及╱或日期）重新提交及送達H 股證券登記處。
4. 
   有關H 股要約的白色接納及轉讓表格

致：香港華發、國泰君安證券及H 股證券登記處

1. 本人╱吾等一經簽立本白色接納及轉讓表格（無論該白色接納及轉讓表格是否已註明日期），本人╱吾等的繼承人及受讓人將受此約束，並表示：

1. 本人╱吾等根據綜合文件及本白色接納及轉讓表格所載代價及於其所載條款（包括「如何填寫本白色接納及轉讓表格」一節所載條款）規限下， 就本白色接納及轉讓表格上所指定數目的H 股不可撤回地接納由國泰君安證券代表香港華發所提出綜合文件所載的H 股要約；
2. 本人╱吾等不可撤回地指示及授權香港華發及╱或國泰君安證券或其各自的代理人，代表本人╱吾等根據隨附經本人╱吾等正式簽署的過 戶收據及╱或任何其他所有權文件（如有）（及╱或就此所需的任何獲信納彌償保證），據此向公司或H 股證券登記處領取本人╱吾等就H 股應 獲發的H 股股票，並將有關H 股股票交付H 股證券登記處，且授權及指示H 股證券登記處根據H 股要約的條款及條件持有該等H 股股票，猶 如該等H 股股票已連同本白色接納及轉讓表格一併交付H 股證券登記處；
3. 本人╱吾等不可撤回地指示及授權香港華發及╱或國泰君安證券或其各自的代理人，將本人╱吾等根據H 股要約的條款有權收取的現金代 價以「不得流通－只准入抬頭人賬戶」方式開出的劃線支票（扣除本人╱吾等就接納H 股要約應付的賣方香港從價印花稅）儘快以普通郵遞方 式寄發至下文所列人士及地址，或下文如無填上姓名及地址，則寄至本人或（如屬聯名登記獨立股東╱海外獨立股東）吾等的排名首位者在 公司股東名冊所示的登記地址，郵遞風險概由本人╱吾等承擔，惟無論如何須不遲於H 股要約成為或宣佈為無條件日期及所有相關文件已 由登記處接獲以使要約接納完整及有效日期（以較後者為準）起計七個營業日（定義見收購守則）內進行；

（在本欄填上應收取支票人士的姓名及地址（如與登記H 股股東或聯名登記H 股持有人排名首位者的姓名及地址不同））

姓名：（請用正楷填寫）

地址：（請用正楷填寫）

1. 1. 本人╱吾等不可撤回地指示及授權香港華發及╱或國泰君安證券及╱或H 股證券登記處及╱或其任何一方可就此指定的人士，各自代表本人╱ 吾等訂立及簽立按香港法例第117 章印花稅條例規定本人╱吾等作為根據H 股要約出售H 股股份的賣方而須予訂立及簽立的成交單據，並按 該條例的規定安排該單據加蓋印花及促使在本白色接納及轉讓表格加上簽註；
   2. 本人╱吾等不可撤回地指示及授權香港華發及╱或國泰君安證券及╱或其任何一方可能指定的一名或多名人士各自代表本人╱吾等就本人╱ 吾等接納H 股要約填妥及簽立任何文件，並作出任何其他可能屬必要或適當的行動，以使本人╱吾等根據H 股要約提交以供接納的H 股歸屬 於香港華發或其可能指定的一名或多名人士；
   3. 本人╱吾等承諾簽立可能屬必要或適當的其他文件並作出有關行動及事宜，以進一步確保本人╱吾等根據H 股要約提交以供接納的H 股轉 讓予香港華發及或其可能指定的一名或多名人士，而上述H 股將不附帶任何留置權、押記、購股權、申索、衡平權、不利權益、第三方權利 或產權負擔，連同有關H 股於提出H 股要約當日或之後應計或附帶的所有權利，包括但不限於收取於提出H 股要約當日或之後就根據H 股 要約提交以供接納的H 股宣派、派付或作出的所有日後股息及其他分派（如有）的權利；及
   4. 本人╱吾等同意追認香港華發及╱或國泰君安證券或其代理人或其可能指定的一名或多名人士，就行使本白色接納及轉讓表格所載任何授 權時所作出或進行的各項或每項行動或事宜。
2. 倘根據H 股要約的條款，本人╱吾等的接納為無效或視為無效，則上文第1 段所載一切指示、授權及承諾均告終止，在此情況下，本人╱吾等授權 並要求 閣下將本人╱吾等的H 股股票及╱或過戶收據及╱或任何其他所有權文件（及╱或就此所需的任何獲信納彌償保證），連同已正式註銷的 本白色接納及轉讓表格一併退回上文所述人士及地址，或如無填上姓名及地址，則按公司股東名冊所示登記地址以郵寄方式寄回本人或吾等當 中名列首位者（如屬H 股聯名登記持有人），郵誤風險概由本人╱吾等承擔。
   附註： 倘 閣下寄發一份或多份過戶收據，而同時香港華發及╱或國泰君安證券或其各自的代理人代表 閣下向公司或H 股證券登記處領取有關H 股股票，則 閣下將獲發H 股股票而並非過戶收據。
3. 本人╱吾等附上本人╱吾等所持全部╱部分H 股的有關H 股股票及╱或過戶收據及╱或任何其他所有權文件（及╱或任何與此有關獲信納彌償保證）， 由 閣下根據H 股要約的條款予以保存。本人╱吾等明白將不會就任何白色接納及轉讓表格或任何H 股股票及╱或任何其他所有權文件獲發收據。 本人╱吾等進一步表示明白，所有文件將以普通郵遞方式寄發，郵誤風險概由本人╱吾等自行承擔。
4. 本人╱吾等謹此向 閣下保證及聲明，本人╱吾等為本白色接納及轉讓表格指定的H 股數目的登記H 股股東，而本人╱吾等擁有全部權利、權力及 授權，以接納H 股要約的方式向香港華發出售及轉讓有關H 股的所有權及擁有權。
5. 本人╱吾等謹此向香港華發及公司保證及聲明，本人╱吾等遵守本人╱吾等於公司股東名冊所列地址所在司法權區關於本人╱吾等接納H 股要約 方面的法律，包括取得可能所需的任何政府、外匯管制或其他同意以及任何登記或備案，以及遵守一切必要手續、監管及╱或法律規定。
6. 本人╱吾等謹此向香港華發及公司保證及聲明，本人╱吾等將全面負責支付本人╱吾等於公司股東名冊所列地址所在司法權區就本人╱吾等接納 H 股要約應付的任何轉讓或其他稅項及徵稅。
7. 本人╱吾等明白本人╱吾等接納H 股要約，將表示本人╱吾等向香港華發保證，本白色接納及轉讓表格指定的H 股數目已繳足並於出售時將不附 帶任何留置權、押記、產權負擔、優先購買權以及任何性質的任何其他第三方權利，連同於本表格日期附帶的所有權利，包括收取於提出H 股要 約當日或之後宣派、作出或派付的所有股息及其他分派（如有）的權利。
8. 本人╱吾等確認，除綜合文件及本白色接納及轉讓表格訂明者外，謹此提供的所有接納、指示、授權及承諾將為無條件及不可撤回。
9. 本人╱吾等確認以接納H 股要約方式向香港華發出售的本人╱吾等的H 股將以香港華發及╱或其代名人的名義登記。