BII Railway Transportation Technology : ANNOUNCEMENT PURSUANT TO RULE 3.7 OF THE TAKEOVERS CODE, RULE 13.09 OF THE LISTING RULES AND INSIDE INFORMATION PROVISIONS UNDER PART XIVA OF THE SECURITIES AND FUTURES ORDINANCE END OF OFFER PERIOD AND RESUMPTION OF TRADING

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

京 投 軌 道 交 通 科 技 控 股 有 限 公 司

BII Railway Transportation Technology Holdings Company Limited

(Incorporated in the Cayman Islands with limited liability)

(Stock code: 1522)

ANNOUNCEMENT

PURSUANT TO RULE 3.7 OF THE TAKEOVERS CODE,

RULE 13.09 OF THE LISTING RULES AND

INSIDE INFORMATION PROVISIONS UNDER PART XIVA OF THE

SECURITIES AND FUTURES ORDINANCE

END OF OFFER PERIOD

AND

RESUMPTION OF TRADING

INTRODUCTION

This announcement is made by the board of directors (the "Board") of BII Railway Transportation Technology Holdings Company Limited (the "Company") pursuant to Rule

3.7 of the Code on Takeovers and Mergers issued by the Securities and Futures Commission (the "SFC") of Hong Kong (the "Takeovers Code"), Rule 13.09 of the Rules Governing the Listing of Securities (the "Listing Rules") on The Stock Exchange of Hong Kong Limited and the Inside Information Provisions (as defined under the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong).

References are made to (1) the announcement (the "Rule 3.7 Announcement") issued by the Company dated 12 November 2020 pursuant to Rules 3.7 and 3.8 of the Takeovers Code, Rule

13.09 of the Listing Rules, and the Inside Information Provisions (as defined under the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong) and (2) the announcements of the Company dated 11 December 2020, 11 January 2021, 8 February 2021, 8 March 2021 and 8 April 2021 pursuant to Rule 3.7 of the Takeovers Code in relation to updates on the Possible Privatisation. Unless otherwise defined, capitalised terms used in this announcement shall have the same meanings as those defined in the Rule 3.7 Announcement.

UPDATE ON THE POSSIBLE PRIVATISATION

The Board wishes to update the shareholders and potential investors of the Company on the Possible Privatisation proposal from BII HK. The Board has been informed by BII HK that it has decided not to proceed further with the Possible Privatisation. As such, the Company will cease to publish further monthly announcements in respect of the progress of the Possible Privatisation, which would otherwise be required under Rule 3.7 of the Takeovers Code.

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END OF OFFER PERIOD

For the purpose of the Takeovers Code, the offer period ends on the date of this announcement.

Following this announcement, the restrictions under Rule 31.1 of the Takeovers Code shall apply, which provides that BII HK and the parties acting in concert with it in the course of the Possible Privatisation (or any parties which is subsequently acting in concert with it) may not, within 6 months from the date of this announcement, announce a further offer or possible offer for shares in the Company, or acquire shares in the Company in circumstances which would trigger a mandatory offer, except in each case with the consent of the SFC.

RESUMPTION OF TRADING

At the request of the Company, trading in the Shares on the Stock Exchange was halted from 9:00 a.m. on Tuesday, 11 May 2021 pending the release of this announcement. An application has been made by the Company to the Stock Exchange for the resumption of trading in the Shares on the Stock Exchange with effect from 9:00 a.m. on Wednesday, 12 May 2021.

WARNING: Shareholders and potential investors of the Company should exercise caution when dealing in the securities of the Company, and if in any doubt about their position, they should consult their professional adviser(s).

By order of the Board

BII Railway Transportation Technology Holdings Company Limited

Xuan Jing

Executive Director

Chief Executive Officer

Hong Kong, 11 May 2021

As at the date of this announcement, the executive Directors are Mr. Cao Wei and Ms. Xuan Jing; the non-executive Directors are Mr. Zhang Yanyou, Mr. Guan Jifa, Mr. Zheng Yi and Mr. Ren Yuhang; and the independent non-executive Directors are Mr. Bai Jinrong, Mr. Luo Zhenbang and Mr. Huang Lixin.

The Directors jointly and severally accept full responsibility for the accuracy of the information contained in this announcement and confirm, having made all reasonable enquiries, that to the best of their knowledge, opinions expressed in this announcement have been arrived at after due and careful consideration and there are no other facts not contained in this announcement, the omission of which would make any statements in this announcement misleading.

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