Subsea7 Related Party Transaction

12 Dec 2025 15:14 CET

Luxembourg - 12 December 2025 - Subsea 7 S.A. (Oslo Børs: SUBC, ADR: SUBCY)
today announced that, its Board of Directors has agreed to reimburse Siem
Industries S.A. for certain legal costs in relation to the proposed merger of
Subsea7 S.A. with Saipem S.p.A. The total value of the reimbursement is under $1
million and covers legal work relating to the Shareholders' Agreement dated 23
July 2025 entered into between Eni S.p.A., CDP Equity S.p.A. and Siem Industries
S.A. and ongoing support in relation to the anti-trust process associated with
the proposed merger.

Under the Shareholder Agreement, Eni S.p.A., CDP Equity S.p.A. and Siem
Industries S.A. have agreed to vote in favour of the proposed merger. The
Shareholders' Agreement further ensures a balanced leadership and governance
structure as agreed in the Merger Agreement dated 23 July 2025 between Subsea7
S.A. and Saipem S.p.A. which is in the interests of Subsea7 S.A. and its
shareholders.

As the transaction qualifies as a related party transaction under the law of 24
May 2011 on the exercise of certain rights of shareholders in general meetings
of listed companies and implementing the so called SRD II EU directive ("SRD
II") Kristian Siem and Louisa Siem did not participate in the vote to approve
the above payment in accordance with SRD II and Luxembourg Company Law.

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Subsea7 is a global 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.

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Contact for investment community enquiries:
Katherine Tonks
Investor Relations Director
Tel +44 20 8210 5568
ir@subsea7.com

This information  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 12 December 2025 at 15:15 CET.

More information:
Access the news on Oslo Bors NewsWeb site

661921_SUBC related party transaction.pdf