Luxembourg  - 19 April 2024 - Subsea 7 S.A.  (Oslo Børs: SUBC, ADR: SUBCY) today
announced   that,  on  19 April  2024, Barclays  Capital  Securities  Limited(1)
informed   the   Company  that  it  had  breached  thresholds  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:

15 April 2024

  * On 15 April 2024 the total number of voting rights in the Company according
    to Article 8 and 9 of the Transparency Law attached to shares held by
    Barclays was 22,559 representing less than 0.01% of the voting rights in the
    Company
  * On 15 April 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) were 14,625,242
    representing 4.80% of the voting rights in the Company
  * On 15 April 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) were 572,734 representing 0.18%
    of the voting rights in the Company
  * When combined, the above positions equate to 5.00% of voting rights of
    Subsea 7 S.A.

16 April 2024

  * On 16 April 2024 the total number of voting rights in the Company according
    to Article 8 and 9 of the Transparency Law attached to shares held by
    Barclays was nil
  * On 16 April 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 nil
  * On 16 April 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 nil
  * When combined, the above positions equate to 0.00% 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  Katherine  Tonks,  Investor
Relations, Subsea7, on 19 April 2024 at 19:10 CET