MARINUS Link (MLPL) has executed its final Stage 1 major works contract with TasVic Greenlink (TVGL) – a joint venture of DT Infrastructure and Samsung C&T Corporation.

The $994 million contract covers the construction of converter stations in Heybridge and Hazelwood, the installation of equipment, and the land cable civil works, spanning 90 kilometres across Gippsland.

Marinus Link is a planned undersea and underground electricity and data interconnector between north-west Tasmania and the Latrobe Valley.

MLPL Chief Executive, Stephanie McGregor, said the contract execution marks the final step in securing the capability and technology needed to start construction.

“We have secured both our cable and converter technology suppliers, our integrated delivery partner, and now our lead contractor for the substantial civils and construction campaign,” Ms McGregor said.

“Recently, we ran our Meet the Contractors events where around 1000 local businesses attended to explore and compete for supply chain opportunities across Gippsland, Victoria and North West Tasmania. Partnering with capable local businesses will complete our workforce and ensure the successful delivery of this national infrastructure project.”

The contract execution follows the September announcement of TVGL as the preferred bidder for the ‘Balance of Works’ package. DTI Chief Executive, John Anderson, acknowledged the significance of this moment and the certainty it provides for regional economies that will benefit from Marinus Link.

“Today marks a significant moment for DTI, together with our partner Samsung C&T, we are committing to deliver a truly once-in-a-generation project for the regions of North West Tasmania and Gippsland,” Mr Anderson said.

Samsung C&T Corporation Australia Managing Director, Scott Choi, echoed Mr Anderson’s sentiments and reinforced their decision to partner with DTI to deliver this landmark project.

“Samsung C&T is excited to collaborate with DTI in supporting Australia’s transition to a clean energy future,” Mr Choi said.

TVGL is scheduled to start preparatory works at the Waratah Bay and Heybridge shore crossings in early 2026, pending final environmental approvals.

Ms McGregor emphasised the planned engagement with communities ahead of construction.

“Our Marinus Link teams, alongside TVGL, will be out and about early next year to provide detailed information about construction activities and expected timelines,” Ms McGregor said.

DT Infrastructure is part of the Gamuda Group of Companies. DT Infrastructure brings together ties between global infrastructure and property giant Gamuda and local expertise in defence, transport and renewables infrastructure projects across metropolitan and regional Australia.

Samsung C&T Corporation is a global engineering and construction company with expertise in large-scale infrastructure and energy projects.

Marinus Link will enable the flow of more electricity in both directions, bolstering energy security, and delivering tangible benefits to consumers in Tasmania, Victoria and the broader national electricity market.

Marinus Link’s total 1500 megawatt capacity is equal to the power supply for 1.5 million Australian homes, and its fibre optic cables will increase telecommunications capacity by 150 times.

Marinus Link Pty Ltd is jointly owned by the federal government, the state of Victoria and the state of Tasmania.