Subsea 7

Regulatory Filings • Oct 29, 2024

Seaway7 awarded offshore wind contract in UK

Luxembourg – 29 October 2024 - Subsea 7 S.A. (Oslo Børs: SUBC, ADR: SUBCY) today announced the award to Seaway7, part of the Subsea7 Group, of a substantial+ contract by Ørsted for the transport and installation of the inter-array cables of the Hornsea 3 offshore wind project located in the UK sector of the North Sea.

Seaway7's scope of work covers the transportation and installation (T&I) of 192 66kV inter-array cables, measuring approximately 500 kilometres in length, with offshore activities scheduled to commence in 2026.

Stuart Fitzgerald, CEO Seaway7, said: "With this award we look forward to continuing our longstanding relationship with Ørsted. The Hornsea 3 project represents our seventh offshore wind project together, including the inter-array cables on the two previous phases of the Hornsea Wind Zone, Hornsea 1 and Hornsea 2. The award adds to our backlog and leading position in the UK, Europe's largest offshore wind market.

(1) Subsea7 defines a substantial contract as being between USD 150 million and USD 300 million.

****************************************************************************************************************************************************************************** Subsea7 is a global leader in the delivery of offshore projects and services for the evolving energy industry. We create sustainable value by being the industry's partner and employer of choice in delivering 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 (0)20 8210 5568 ir@subsea7.com

Contact for media enquiries:

Nikki Beales Communications Manager, Seaway7 Tel +44 (0)7843895292 nikki.beales@seaway7.com www.seaway7.com

Forward-Looking Statements: This document may contain forward-looking 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, assumptions or strategies regarding the future and are subject to known and unknown risks that could cause actual results, performance or events to differ materially from those expressed or implied in these statements may be identified by the use of words such as 'anticipate', 'believe', 'expect', 'future', 'goal', 'intend', 'likely' may', 'plan', 'project', 'seek', 'should', 'strategy' 'will', and similar expressions. The principal risks which ould affect future operations of the Risk Management' section of the Group's Annual Report and Consolidated Financial Statements. Factors that may cause actual and trends to differ materially from our forward-looking statements include (but are not limited to): (i) our ability to deliver fixed price projects in accordans and within the parameters of our bids, and to avoid cost overruns; (ii) our ability to collect receivables, negotiate variation orders and collect the related revenue; (ii) our ability to recover costs; (iv) capital expenditure by oil 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 loss of, or deterionship with, any significant clients; (vii) the outcome of legal proceedings or governmental inquiries; (x) uncertainties inherent in operating internationally, including economic, political and social instability, boycotts or embargoes, in foreign governmental requlations, corruption and currency fluctuations; (x) the effects of a pandemic or a natural disaster; (xi) liability to third parties for the failure of our joint venture partners to fulfi changes in, or our failure to comply with, applicable laws and regulations (including regulatory measures addressing (xii) operating hazards, including spills, environmental damage, personal or property damage and business interruptions caused by adverse weather; ( x in ) 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 availity of suitable aternative vesselfuels; and (xvii) the effectiveness of our disclosure controls 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 oblicly or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

This information is considered to be information pursuant to the EU Market Abuse Regulation and is subject to the disclosure requirements pursuant to Section 5-12 the Norwegian Securities Trading Act.

This stock exchange release was published by Katherine Tonks, Investor Relations, Subsea7, on 29 October 2024 at 21:05 CET.