Vantage Drilling International

Proxy Solicitation & Information Statement • Sep 4, 2025

VANTAGE DRILLING INTERNATIONAL LTD. 7710 CHERRY PARK DRIVE, SUITE T #177 HOUSTON, TX 77095

VOTE BY INTERNET - www.proxyvote.com or scan the QR Barcode above Use the Internet to transmit your voting instructions and for electronic delivery of information. Vote by 11:59 P.M. ET on October 15, 2025. Have your proxy card in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form.

ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS

If you would like to reduce the costs incurred by our company in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To sign up for electronic delivery, please follow the instructions above to vote using the Internet and, when prompted, indicate that you agree to receive or access proxy materials electronically in future years.

VOTE BY PHONE - 1-800-690-6903

Use any touch-tone telephone to transmit your voting instructions. Vote by 11:59 P.M. ET on October 15, 2025. Have your proxy card in hand when you call and then follow the instructions.

VOTE BY MAIL

Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717.

TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS:

					V78904-P37066
						DETACH AND RETURN THIS PORTION ONLY
VANTAGE DRILLING INTERNATIONAL LTD.
The Board of Directors recommends you vote FOR the following:
To elect, by way of separate resolutions, each of the following persons as Directors of the Company to serve until the Company's next annual general meeting or until their respective offices are otherwise vacated in accordance with the Bye-laws.
Nominees:
1a. Thomas R. Bates, Jr.	!	!	!	2.	BDO USA, P.C.		!	!	!
1b. Nils E. Larsen	!	!	!
1c. Jørn Peter Madsen	!	!	!
1d. Scott McReaken	!	!	!
1e. Ihab M. Toma	!	!	!
1f. David Warwick	!	!	!
1g. L. Spencer Wells	!	!	!
	Signature [PLEASE SIGN WITHIN BOX] Date			For Against Abstain		THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. NOTE: Such other business as may properly come before the meeting or any adjournment or postponement thereof. Signature (Joint Owners)	To approve the appointment of BDO USA, P.C. to serve as the Company's independent auditor for the financial year ending December 31, 2025 and serve until the close of the Company's next annual general meeting thereafter, and to authorize the Board of Directors (acting through its Audit Committee) to determine the remuneration of Please sign exactly as your name(s) appear(s) hereon. When signing as attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must sign. If a corporation or partnership, please sign in full corporate or partnership name by authorized officer. Date		KEEP THIS PORTION FOR YOUR RECORDS For Against Abstain

Important Notice Regarding the Availability of Proxy Materials for the Annual General Meeting:

The Notice and Proxy Statement is available at www.proxyvote.com

V78905-P37066

VANTAGE DRILLING INTERNATIONAL LTD. 2025 Annual General Meeting of the Company October 16, 2025 11:00 AM, AT This proxy is solicited by the Board of Directors

The shareholder(s) hereby appoint(s) Sarah French or the Chairman of the Meeting as proxy, with the power of substitution, and hereby authorize(s) each of them to represent and to vote, as designated on the reverse side of this ballot, all of the common shares of VANTAGE DRILLING INTERNATIONAL LTD. that the shareholder(s) is/are entitled to vote at the 2025 Annual General Meeting of the Company to be held at 11:00 AM, AT on October 16, 2025, at the law offices of Conyers Dill & Pearman Limited, Richmond House, 2nd Floor, 12 Par-la-ville Road, Hamilton HM08, Bermuda, and any adjournment or postponement thereof.

This proxy, when properly executed, will be voted in the manner directed herein. The proxy holder shall also have discretion to vote the Shares for or against any amendments to proposals duly made at the 2025 Annual General Meeting of the Company or any postponement or adjournment thereof. If no direction is given, the Shares will be voted in favour of the proposals as recommended by the Board of Directors (including amendments thereto approved by the Board of Directors) when duly presented at the 2025 Annual General Meeting of the Company or any postponement or adjournment thereof. The proxy holders shall have discretion to vote the Shares on any other matters as may otherwise properly come before the 2025 Annual General Meeting of the Company or any postponement or adjournment thereof.

Continued and to be signed on reverse side