Luxembourg  - 7 April 2026 -  Subsea 7 S.A. (Oslo  Børs: SUBC, ADR: SUBCY) today
announced  the signing of  a strategic collaboration  agreement between PETRONAS
Suriname  E&P B.V.  ("PETRONAS Suriname"),  a subsidiary  of PETRONAS and Subsea
Integration  Alliance  (SIA),  which  comprises  Subsea7 and SLB OneSubsea.  The
agreement  creates  a  long-term  framework  for  close  collaboration  on field
development projects in Suriname.

Through  early engagement  and integrated  execution, the  collaboration aims to
simplify  complex  procurement  processes,  reduce  total  development costs and
enhance delivery certainty. The optimisation of project timelines, combined with
a  reduction  in  execution  risk,  will  enhance  project  economics and unlock
opportunities across a portfolio of prospects in Suriname.

Under   the   framework,  SIA  will  provide  pre-FEED,  FEED  and  engineering,
procurement,  construction, installation and commissioning (EPCIC) solutions for
multiple  prospective projects. The  scope includes subsea  umbilical, riser and
flowlines  (SURF) from  Subsea7, and  subsea production  systems (SPS)  from SLB
OneSubsea.

Craig  Broussard, Senior Vice President  for Subsea7, said: "We  are proud to be
working  with PETRONAS  Suriname through  this strategic  agreement to establish
strong,  sustainable foundations  in Suriname  that will  support growth in this
emerging   frontier   basin.  The  agreement  builds  on  our  track  record  of
collaborating  with our clients to drive  value creation through the delivery of
optimised  development solutions. We are excited to see the positive impact this
work will have in the region."

Olivier  Blaringhem,  CEO  of  Subsea  Integration  Alliance,  said: "This is an
exciting and important step for the development of the significant opportunities
of  PETRONAS  Suriname  in  Suriname's  frontier  basins. The combined deepwater
expertise  and collaborative, agile approach of  Subsea7 and SLB OneSubsea, will
maximize value as the developments secure vital energy resources in the region."

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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.

Subsea Integration Alliance (SIA) is a strategic global alliance combining the
strengths of SLB OneSubsea and Subsea7. Working closely with SIA gives customers
unique access to integrated subsea solutions-including field development
planning, EPCI contracting models, end-to-end project delivery-and total life
cycle solutions.

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 (mailto:ir@subsea7.com)

Contact for media enquiries:
Ashley Shearer
Communications Manager
Tel +1-713-300-6792
ashley.shearer@subsea7.com (mailto:ashley.shearer@subsea7.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,  beliefs,  intentions,  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. Forward-looking statements may be identified by
the  use  of  words  such  as  'anticipate',  'believe',  'estimate',  'expect',
'future', 'goal', 'intend', 'likely' 'may', 'plan', 'project', 'seek', 'should',
'strategy'  'will',  and  similar  expressions.  The principal risks which could
affect  future operations  of the  Group are  described in the 'Risk Management'
section  of  the  Group's  Annual  Report and Consolidated Financial Statements.
Factors that may 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 projects  in accordance with client expectations
and  within the  parameters of  our bids,  and to  avoid cost overruns