Subsea 7

Regulatory Filings • Jun 17, 2025

Subsea7 awarded contract offshore Norway

Luxembourg – 17 June 2025 - Subsea 7 S.A. (Oslo Børs: SUBC, ADR: SUBCY) today announced the award of a substantial1- contract offshore Norway.

Subsea7's scope includes engineering, procurement, construction and installation (EPCI) of pipeline bundles, spools, protection covers and tie-ins using key vessels from Subsea7's fleet.

Project management and engineering will commence immediately at Subsea7's offices in Stavanger, Norway and Aberdeen, Scotland. Fabrication of pipeline bundles will take place at Wester, Scotland. Offshore operations are expected to take place in 2025-2027.

Erik Femsteinevik, Vice President for Subsea7 Norway said: "We are excited to have been awarded this project. Our collaboration with our clients leverages our collective experience from past and current projects. By engaging early in the field development process, we can optimise design solutions and contribute to a positive final investment decision. Subsea7 looks forward to a safe, efficient, and reliable field development."

No further details are disclosed at this time.

1. Subsea7 defines a substantial contract as being between \$150 million and \$300 million.

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Subsea7 is a dobal leader in the delivery of offshore projects and services for the evolving energy industry, creating sustainable value by being the industry's partner and employer of choice in delivering the efficient offshore solutions the world needs.

Subsea7 is listed on the Oslo Børs (SUBC), ISIN LU0075646355, LEI 222100AIF0CBCY80AH62. ******************************************************************************************************************************************************************************

Contact for investment community enquiries:

Katherine Tonks Investor Relations Director Tel +44 20 8210 5568 ir@subsea7.com

Contact for media enquiries:

Jan Roger Moksnes Communications Manager Tel +47 4151577 janroger.moksnes@subsea7.com www.subsea7.com

Forward-Looking Statements: This document may contain 'forward-hooking statements' (within the meaning of the safe harbour provisions of the U.S. Private Securities Litigation Reform Act of 1995). These statements relate to our current expectations, beliefs, intentions, assumptions or strategies regarding the future and and unknown risks that could cause actual results, performance or events to differ materially from those expressed or implical in the may be identified by the use of words such as
'anticipate', 'estimate', 'expect', 'future', 'intend', 'ikely' 'nay', 'proje expressions. The principal risks which operations of the Group are described in the 'Risk Management' section of the Group's Annual Report and Consolidated Financial Statemay cause actual and future results and trends to differ materially from our forward-looking statements include (but are not limited to): (i) our ability to deliver fixed price with dient expectations and within the parameters of our bids, and to avoility to collect receivables, negotiate variation orders and collect the related revenue; (ii) our ability to recover costs on significant projects; (iv) and gas companies, which is affected by fluctuations in the price of, and demand for, crude oil and natural gas; (v) unanticipated delays or cancellation of projects included in our backlog; (vi) competition and price fluctuations in the markets and businesses in which we operate; (vii) the relationship with, any significant clients; (vii) the outcome of legal proceedings or governmental inquiries; inherent in operating internationally, including economic, political and social instability, boycotts or embarges in foreign governmental regulations, corruption and currency fluctuations; (x) the effects of a natural disaster; (xi) liability to third parties for the failure of our joint venture partners to fulfil their obligations; (xii) changes in, or our failure to comply with, applicable laws and regulations (including regulatory measures addressing dimi) operating hazards, including spills, environmental damage, personal or property damage and business interruptions caused by adverse weather; ( x i ) equipment or mechanical failures, which could increase costs, impair revenue and result in penalties for failure to meet projection requirements; (xv) the timely delivery of vessels on order and the timely completion of ship conversion programmes; (xvi) our ability to keep pace with technological changes and the impact of potential information technology, cyber security or data security breaches; (xvi) global availability of suitable alternative vessel fuels; and (xvii) the effectiveness of our disclosure control and internal control over financial reporting. Many of these factors are beyond our ability to control or predict. Given these uncertaintes, you should not plance on the forward-looking statements. Each forwardlooking statement speaks only as of this document. We undertake no obligation to update publicly or revise any forward-looking statements, whether as a result of new information, future events or otherwise.