Vantage Drilling International

Proxy Solicitation & Information Statement • Sep 4, 2025

PROXY

VANTAGE DRILLING INTERNATIONAL LTD. (the "Company")

Proxy Solicited for 2025 Annual General Meeting of the Company (the "Meeting") on 16 October 2025

The undersigned holder(s) of [INSERT NUMBER OF SHARES] shares, hereby authorise(s), constitute(s) and appoint(s) Sarah French or the Chairman of the Meeting with full power of substitution to act as their proxy at the 2025 Annual General Meeting of the Company to be held at the law offices of Conyers Dill & Pearman Limited, located at Richmond House, 2nd Floor, 12 Par-la-ville Road, Hamilton HM08, Bermuda, on 16 October 2025, at 11:00 a.m. Atlantic Time or any adjournment or postponement thereof, and to vote on their behalf as directed below.

The undersigned desire(s) their votes to be cast on the resolutions proposed at the 2025 Annual General Meeting of the Company (as set out in full in the Notice of 2025 Annual General Meeting of the Company issued by the Company on 2 September 2025 and accompanying proxy statement) as indicated below.

Item 1 ELECTION OF DIRECTORS FOR AGAINST ABSTAIN 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. 1a. Thomas R. Bates, Jr. 1b. Nils E. Larsen 1c. Jørn Peter Madsen 1d. Scott McReaken 1e. Ihab M. Toma 1f. David Warwick 1g. L. Spencer Wells Item 2 APPOINTMENT OF AUDITOR To approve the appointment of BDO USA, P.C. to serve as the Company's 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 (acting through its Audit Committee) to determine the remuneration of BDO USA, P.C.

Alternatively:

I will attend the general meeting in person and vote my/our shares.

Signature(s)_______________________________________ Date:_________________ Note: Please sign exactly as name appears below, joint owners should each sign. When signing as attorney, executor, administrator or guardian, please give full title as such.

Name of Shareholder(s) in block letters:

X Please mark your votes as in this example.

NOTES

• 1. Your proxy is to be received by DNB Bank ASA, Registrars Department, Oslo, not later than 14 October 2025, 12:00 hours Central European Time. The P.O. Box address is: DNB Bank ASA, Registrars Department, P.O. Box 1600 Sentrum, 0021 Oslo, Norway. Alternatively, send the proxy as PDF to vote@dnb.no within the aforementioned date and time.
• 1. The Board of Directors has fixed the close of business Eastern Time on 19 August 2025 as the record date for the determination of the shareholders entitled to attend and vote at the Annual General Meeting of the Company or any adjournment thereof.
• 1. If properly executed, the common shares of the Company represented by this Proxy (the "Shares") will be voted by the proxy holder in the manner directed by the shareholder on this Proxy. 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 (including amendments thereto approved by the Board) when duly presented at the 2025 Annual General Meeting of the Company or any postponement or adjournment thereof. The proxy holder 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.
• 1. This Proxy must be completed, signed and dated by the shareholder or an attorney validly appointed by the shareholder. If signed by an attorney pursuant to a power of attorney or other authority, a notarial certified copy of such power of attorney or authority must be returned with this Proxy in accordance with Note 1 hereof.
• 1. Proxy holders are entitled to vote on a show of hands, or, if properly demanded in accordance with the Bye-laws, on a poll at the 2025 Annual General Meeting of the Company or any postponement or adjournment thereof.
• 1. The shareholder (or attorney) shall place an "X" in the box for each Resolution above, indicating the way in which their vote is to be cast.
• 1. If the shareholder is a corporation or company, this Proxy should be signed either by a duly authorised officer or attorney (in accordance with Note 3 hereof) of such corporation or company or be completed under its common seal. If shares are held jointly, each joint holder shall sign their name.
• 1. If the shareholder wishes to vote "for" or "against" or to "abstain" from voting on the appointment of one or more of the directors, the shareholder shall place an "X" indicating the director(s) for whom such shareholder is voting "for" or "against" or on whose appointment the shareholder is electing to "abstain" from voting, as the case may be, in the appropriate space(s).
• 1. Any alterations to this Proxy should be initialled by the shareholder (or attorney).
• 1. The completion and return of this Proxy will not preclude the shareholder from attending the 2025 Annual General Meeting of the Company and voting in person.