Our locations We’re always ready to support you. Whenever and wherever you need it. Houston Corporate Headquarters 3505 West Sam Houston Parkway North Suite 400 Houston Texas 77043 T (281) 618 0400 F (281) 618 0500 Aberdeen Helix House Kirkton Drive Pitmedden Road Industrial Estate Dyce Aberdeen AB21 0BG United Kingdom T +44(0)1224 351800 F +44(0)1224 351801 Singapore Supply Base Loyang Offshore Supply Base 23G Loyang Crescent Block 603 TOPS Avenue 6 #01-01 Singapore 509023 T +65 6 501 0130 F +65 6 542 8675 Rio de Janeiro Helix do Brasil Praia de Botafogo, 228 16º andar, Ala A Botafogo Rio de Janeiro, RJ Brazil CEP 22250 040 +55 21 2006 0400 Luxembourg Helix Offshore International Holdings S.à r.l. L-1882 Luxembourg 12C, Rue Guillaume Kroll R.C.S. Luxembourg B 177689 T +352 28 66 92 06 F +352 28 66 92 07 Australia Helix Energy Solutions Group c/o Schlumberger Australasia 10 Telethon Avenue Perth, WA 6000 Australia T +61 8 9420 4800 Where to next? Our history See how we’ve evolved over five decades from a small group of abalone divers. Latest news Keep up to date with our latest news and events. Contact If you’d like to talk more about how we can help you, don’t hesitate to get in touch. Follow us © 2021 Helix Energy - All Rights Reserved. 0365 email login Helix email login ESS Login Terms of use Privacy statement Modern Slavery Statement

Corporate sustainability Helix is committed to transparency with respect to our operations and focuses on safety, sustainability and value creation as core business values and priorities. With coordination across our business lines, we identify and report on qualitative and quantitative ESG topics relevant to the services that we provide. 2021 Corporate Sustainability Report Who we are 7 Well intervention vessels Seven dedicated well intervention vessels. 2 ROV support vessels Two dedicated remote operated vehicle (ROV) support vessels. 10 Intervention systems Six intervention riser systems (IRSs), three subsea intervention lubricators (SILs), one riserless openwater abandonment module (ROAM). 42 Remotely operated vehicles 42 work class ROVs. 4 Trenching systems Four subsea trenching systems. 4 Regional offices Houston, Texas, USA (HQ) Aberdeen, UK Rio de Janeiro, Brazil Singapore What we do Production Decommissioning Development Production Facilities Helix Fast Response System Strategic Alliance What we don’t do NO Ownership of Onshore Wells NO Hydraulic Fracturing NO Drilling NO Onshore Oil & Gas Services NO Active Rig Site Corporate Sustainability | Report Archive 2019 Corporate Sustainability Report 2020 Corporate Sustainability Report 2020 Corporate Sustainability Summary Update Where to next? Board of directors An experienced, talented and diverse Board is critical to our success. Corporate governance We are committed to provide continuing insight and transparency into in our governance process. Vision and values We pursue our business with integrity and respect for others and the communities in which we operate. Follow us © 2021 Helix Energy - All Rights Reserved. 0365 email login Helix email login ESS Login Terms of use Privacy statement Modern Slavery Statement