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© Subsea7 - 20251 subsea7.com Second quarter 2025 results 31 July 2025
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© Subsea7 - 20252 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; (ii) our ability to collect receivables, negotiate variation orders and collect the related revenue; (iii) our ability to recover costs on significant projects; (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 deterioration in our relationship with, any significant clients; (viii) the outcome of legal proceedings or governmental inquiries; (ix) uncertainties inherent in operating internationally, including economic, political and social instability, boycotts or embargoes, labour unrest, changes in foreign governmental regulations, corruption and currency fluctuations; (x) the effects of a pandemic or epidemic or a natural disaster; (xi) liability to Fourth parties for the failure of our joint venture partners to fulfil their obligations; (xii) changes in, or our failure to comply with, applicable laws and regulations (including regulatory measures addressing climate change); (xiii) operating hazards, including spills, environmental damage, personal or property damage and business interruptions caused by adverse weather; (xiv) equipment or mechanical failures, which could increase costs, impair revenue and result in penalties for failure to meet project completion 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; (xvii) global availability at scale and commercial viability of suitable alternative vessel fuels; and (xviii) the effectiveness of our disclosure controls and procedures and internal control over financial reporting. Many of these factors are beyond our ability to control or predict. Given these uncertainties, you should not place undue reliance on the forward-looking statements. Each forward-looking statement speaks only as of the date of this document. We undertake no obligation to update publicly or revise any forward-looking statements, whether as a result of new information, future events or otherwise.
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© Subsea7 - 20253 subsea7.com Second quarter 2025 – resilient delivery Bundle towhead and pipeline at Wick • Adjusted EBITDA of $360 million – 23% growth year-on-year – margin of 20.5%, up 370 bps • Growth in Adjusted EBITDA driven by both business units • On track to meet guidance for the full year • Robust order intake of $2.5 billion demonstrates the resilience of our strategy – Q2 book-to-bill 1.4x – H1 book-to-bill 1.0x
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© Subsea7 - 20254 subsea7.com Strong backlog of $11.8 billion Subsea and Conventional Renewables 4.8 5.3 7.0 8.7 10.7 9.9 0 2 4 6 8 10 12 Q2 20 Q2 21 Q2 22 Q2 23 Q2 24 Q2 25 • High backlog and visibility • $2.9 billion for execution in 2025 • $3.7 billion for execution in 2026 2.2 1.5 0.8 1.7 1.8 1.9 0 0.5 1 1.5 2 2.5 Q2 20 Q2 21 Q2 22 Q2 23 Q2 24 Q2 25 • Selective bidding since 2022 • $0.7 billion for execution in 2025 • $0.8 billion for execution in 2026 $bn
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© Subsea7 - 20255 subsea7.com Group revenue and EBITDA – continued momentum 1.2 1.2 1.4 1.5 1.2 1.5 1.7 1.8 1.4 1.6 1.8 1.3 1.6 1.95.1 6.0 6.8 2022 2023 2024 2025 Revenue Adjusted EBITDA 86 107 162 236134 162 292 360 171 201 321 169 245 315 559 714 1,090 2022 2023 2024 2025 $bn Q4 Q3 Q2 Q1 $m Q4 Q3 Q2 Q1
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© Subsea7 - 20256 subsea7.com Subsea and Conventional • Revenue $1.4 billion – High activity in Brazil, the US, Türkiye and Norway • Adjusted EBITDA $301 million – Up 22% from the prior year period – Margin 21.2% – Margin expansion of 400bps • Net operating income $165 million $1.2bn $1.4bn $1.4bn Q2 2023 Q2 2024 Q2 2025 Revenue $121m $247m $301m 10.3% 17.2% 21.2% 0.05 0.1 0.15 0.2 0.25 0 50 100 150 200 250 300 350 Q2 2023 Q2 2024 Q2 2025 Adjusted EBITDA
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© Subsea7 - 20257 subsea7.com Renewables Revenue Adjusted EBITDA $309m $281m $307m Q2 2023 Q2 2024 Q2 2025 $34m $38m $53m 11.1% 13.6% 17.4% 0.07 0.09 0.11 0.13 0.15 0.17 0.19 0.21 0.23 0.25 0 10 20 30 40 50 60 Q2 2023 Q2 2024 Q2 2025 • Revenue up 9% to $307 million – High activity on Dogger Bank C and East Anglia THREE • Adjusted EBITDA $53 million – Up 40% from the prior year period – Margin 17.4% – Margin expansion of 380bps • Net operating income $20 million
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© Subsea7 - 20258 subsea7.com 459 360 59 (55) (81) (306) (22) 0 100 200 300 400 500 600 700 800 900 1000 Cash flow bridge Including: • Capex $93m • Lease payments $77m Equating to: • Free cash flow $246m • Cash conversion 1.1x • Net debt $695m – including lease liabilities $448m • Liquidity $1.2bn $m 413 Cash Mar 25 Cash Jun 25 Adjusted EBITDA TaxWorking capital Investing Financing Other
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© Subsea7 - 20259 subsea7.com 2025 guidance reaffirmed 2024 2025 Revenue $6.8 billion $6.8 - 7.2 billion Administrative expense $297 million $290 – 310 million Adjusted EBITDA margin 16% 18 – 20% D&A $623 million $700 - 720 million Net finance cost $77 million $60 - 65 million Effective tax rate 41% 30 - 35% Capital expenditure $349 million $360 – 380 million
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© Subsea7 - 202510 subsea7.com Norway – strong portfolio of projects in 2025 Ormen Lange Phase 3 • EPCI flowlines and installation of OneSubsea multiphase compression • Unlocking 40 bcm gas for Europe • Started up in June 2025 Yggdrasil • High activity at Vigra with 22 trips planned in 2025 for Seven Vega, Seven Oceans and Seven Navica • Launching a large bundle in summer 2025 Northern Lights CCS • Phase 1: 100km CO2 pipeline EPCI completed • Phase 2: pipeline, satellite structures and umbilicals. • Engineering underway and installation expected to begin in 2026 Yggdrasil bundle towhead at Wick Seven Navica, Northern Lights Phase 1 Ormen Lange compressor
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© Subsea7 - 202511 subsea7.com Norway – continued new awards PPF FEED • FEED and new framework agreement • Part of the rejuvenation of the Ekofisk complex • If FID, offshore activities using Seven Borealis Øst Frigg • Part of the Yggdrasil development • A result of the Subsea Alliance with Aker BP • Fabrication of bundle at Wick • Offshore activities 2025-27 Fram Sør • EPCI award following FEED • Fabrication of flowlines at Vigra • Offshore activities 2026-28 Source: Equinor Seven BorealisA bundle cross section at Wick
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© Subsea7 - 202512 subsea7.com Subsea prospects North and Central America BP Tie-back projects Equinor Bay du Nord (i, f) Shell Tie-back projects Repsol Polok B29 (i) Europe Adura Puffin Aker BP Tie-back projects BP Clair Ridge Expansion (i) Chevron Aphrodite (i) Conoco PPF (f) Equinor Wisting (i, f) TotalEnergies Tyra North / Halfdan North South America Equinor Bacalhau Ph 2 (i, f) Guyana Tie-back projects Karoon Neon Petrobras Atapu 2 Sépia 2 Búzios 12 Mero Onda 2 Búzios Onda 2 SEAP 2 Petronas Block 52 Australia Amplitude East Coast Supply Beach Otway Phase 6 Chevron Gorgon Stage 3 Woodside Greater Western Flank 4 The map includes a selection of ITTs in-house or expected in the next 12 months (i) Integrated SURF-SPS (f) FEED already awarded, Subsea7 is preferred EPCI supplier Türkiye TPAO Sakarya Ph 3a/3b (i) Middle East Aramco New CRPOs Qatar Energy Bul Hanine Asia ENI Gendalo&Gandang Mubadala Tangkulo Ph1 Petronas Kelidang (i) PTTEP Block H (i) Under $150m $150-300m $300-500m $500-750m $750m-$1.25bn $1.25bn+ Africa AFC Pecan BP Greater Tortue Chevron Aseng ENI Baleine Mellitah Bahr Essalam Shell Bonga SW TotalEnergies CCE Venus
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© Subsea7 - 202513 subsea7.com Offshore wind…market dependent on UK AR7 process Project Developer GW Consent Grid Connection A West of Orkney TotalEnergies 1.0 B Seagreen 1A SSE 0.5 C Berwick Bank A&B SSE 2.8 D SEP/DEP Equinor 0.7 E Norfolk Vanguard RWE 2.8 F East Anglia 1N Iberdrola 0.9 G Rampion 2 RWE 1.2 H Awel y Môr RWE 1.1 I Mona BP 1.5 J Morgan BP 1.5 H D C F JI A B E G Inclusion in the list does not guarantee a project will be entered into AR7
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© Subsea7 - 202514 subsea7.com Confident in the outlook for 2025 and beyond • Strong backlog of $11.8 billion – Over 90% visibility on 2025 revenue guidance – High utilisation of global enablers • Re-affirmed guidance for 2025 – Adjusted EBITDA growth >20% year-on-year • Strong long-term fundamentals for the industry – Well positioned in sectors with favourable dynamics • Solid tendering pipeline – Subsea projects with advantaged economics – UK AR7 to drive near-term wind market Seven Navica and Seven Oceans Vigra spoolbase
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© Subsea7 - 202515 subsea7.com Appendix
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© Subsea7 - 202516 subsea7.com Major projects - percentage of completion Super–major (over $1.25bn) Major ($750m-$1.25bn) Very large ($500- 750m) Large ($300-500m) Substantial ($150-300m) Sizeable ($50-150m) Projects over $100 million, between 5% and 95% complete, excluding day -rate contracts, at 30 June 2025
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© Subsea7 - 202517 subsea7.com Fleet – 41 vessels in the active fleet at the end of Q2 2025 * * * * * * * * * * * * Chartered vessels are denoted with an asterisk. Renewables and transportation vessels are operated by Seaway7 *
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© Subsea7 - 202518 subsea7.com