Subsea 7 S.A. notification of major holding

25 Jun 2024 18:47 CEST

Luxembourg - 25 June 2024 - Subsea 7 S.A. (Oslo Børs: SUBC, ADR: SUBCY) today
announced that, on 25 June 2024, Barclays Capital Securities Limited(1) informed
the Company that it had crossed below the 5% thresholds (at 0%) provided for by
Luxembourg's Transparency Law of 11 January 2008 on transparency requirements
for issuers of securities as amended (the "Transparency Law") as follows:

* On 19 June 2024 the total number of voting rights in the Company according
to Article 8 and 9 of the Transparency Law attached to shares was 0
* On 19 June 2024 the total number of voting rights in the Company attached to
financial instruments with similar economic effect according to Article 12
(1) (a) of the Transparency Law (right to recall) was 0
* On 19 June 2024 the total number of voting rights in the Company attached to
financial instruments with similar economic effect according to Article 12
(1) (b) of the Transparency Law (swaps) was 0
* When combined, the above positions equate to 0% of voting rights of Subsea
7 S.A.

A copy of the notifications received from Barclays is available on the Subsea7
website www.subsea7.com (http://www.subsea7.com).

(1) A wholly-owned subsidiary of Barclays Plc

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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 William Vincent, Assistant
Treasurer, Subsea7, on 25 June at 18:45 CET

More information:
Access the news on Oslo Bors NewsWeb site

622378_SUBC Barclays Notification 25 June 2024.pdf
622378_SUBC major shareholding disclosure 25 June 2024.pdf