Shelf Drilling (North Sea) Ltd. — Proxy Solicitation & Information Statement 2025

Aug 5, 2025

Shelf Drilling, Ltd. – Notice of Extraordinary General Meeting

Shelf Drilling, Ltd. – Notice of Extraordinary General Meeting

SHELF DRILLING, LTD. – NOTICE OF EXTRAORDINARY GENERAL MEETING

Dubai, August 5, 2025 – Reference is made to the stock exchange announcement as of August 5, 2025 regarding a plan of merger entered into between Shelf Drilling, Ltd. (the "Company"), ADES International Holding, Ltd. and ADES International Cayman whereby all of the Company's shares will be cancelled for a consideration in cash of NOK 14.00 per share (the “Proposed Merger”).

The Company hereby announces that the Company will hold an extraordinary general meeting on September 16, 2025, to approve the Proposed Merger.

The notice of the extraordinary general meeting (which includes the plan of merger), the board's recommendation and Form of Proxy will be distributed to shareholders by normal distribution methods and are attached to this announcement, and together with further materials (including the merger agreement) available on https://www.shelfdrilling.com/investor-relations/.

Proxy votes and attendance slips must be received by DNB Bank ASA, Registrars Dept., P.O. Box 1600 Sentrum, 0021 Oslo, Norway, not later than 10:00 am CEST on September 12, 2025.

About Shelf Drilling

Shelf Drilling is a leading international shallow water offshore drilling contractor with rig operations across the Middle East, Southeast Asia, India, West Africa, the Mediterranean and the North Sea. Shelf Drilling was founded in 2012 and has established itself as a leader within its industry through its fit-for-purpose strategy and close working relationship with industry leading clients. The Company is incorporated under the laws of the Cayman Islands with corporate headquarters in Dubai, United Arab Emirates. The Company is listed on the Oslo Stock Exchange under the ticker “SHLF”.

Additional information about Shelf Drilling can be found at www.shelfdrilling.com.

Contact Details

For questions or comments, please contact investor.relations@shelfdrilling.com.

This information is subject to the disclosure requirements pursuant to section 5 -12 of the Norwegian Securities Trading Act.