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.

This announcement is for information purposes only and does not constitute an invitation or offer to acquire, purchase or subscribe for securities.

This announcement does not constitute or form a part of any offer or solicitation to purchase or subscribe for securities in the United States. The Notes have not been and will not be registered under the United States Securities Act of 1933, as amended (the "Securities Act") or the securities laws of any state of the United States or other jurisdiction.

NOTICE OF REDEMPTION

WINTRIX DC GROUP

(formerly known as Chindata Group Holdings Limited)

(Incorporated with limited liability under the laws of the Cayman Islands)

10.50% Senior Notes due 2026

(Stock Code: 5697)

Reference is made to the announcement of WinTriX DC Group (formerly known as Chindata Group Holdings Limited, the "Company") dated 23 February 2023 in relation to the US$300,000,000 10.50% Senior Notes due 2026 (the "Notes") issued by the Company and the listing of the Notes on The Stock Exchange of Hong Kong Limited.

The Company hereby announces that the Company has issued a notice of redemption, pursuant to Section 3.02(a) of the Indenture dated as of 23 February 2023 (as amended, modified or supplemented from time to time, the "Indenture") among the Company, the Subsidiary Guarantors party thereto and The Bank of New York Mellon, London Branch, as Trustee, pursuant to which the Company intends to redeem all of the outstanding Notes on 26 January 2024 (the "Redemption Date") at a redemption price equal to 100% of the principal amount of the Notes redeemed plus the Applicable Premium as of, and accrued and unpaid interest, if any, to (but not including) the Redemption Date. Capitalized terms used herein but not otherwise defined herein have the meanings given to such terms in the Indenture.

As at the date of this announcement, the outstanding principal amount of the Notes is US$300,000,000. Upon completion of the redemption, the Notes will be cancelled and there will be no further Notes outstanding. Accordingly, the Company will make an application to The Stock Exchange of Hong Kong Limited for the withdrawal of the listing of the Notes.

Hong Kong, 18 January 2024

As at the date of this announcement, the board of directors of the Company consists of Mr. Zhongjue Chen, Ms. Krista Snow and Mr. David Benjamin Gross-Loh as directors.