CIMIC's Leighton Asia awarded three-year critical minerals asset integrity contract extension in Indonesia - CIMIC Group

14 Oct 2025 4:36 PM

CIMIC Group company Leighton Asia has secured a three-year extension to its asset integrity contract with PT Vale Indonesia, supporting operations at the Sorowako nickel mine in South Sulawesi, Indonesia.

The scope includes inspection, maintenance, engineering and construction services for critical production assets, ensuring safe, reliable, and efficient operation of mine infrastructure upgrades and expansions. Nickel is a key component in battery technologies and high-performance alloys, making this project central to the global supply of critical minerals.

ACS Group and HOCHTIEF Chief Executive Officer and CIMIC Group Executive Chairman Juan Santamaría said: “We are pleased to continue our long-standing partnership with PT Vale Indonesia, which spans more than 30 years. This contract extension reflects our commitment to delivering high-quality asset integrity services and supporting Indonesia’s growing nickel industry – an essential contributor to the global energy transition. Critical minerals like nickel are foundational to clean energy technologies, defence systems, and digital infrastructure. Through Leighton Asia’s expertise and our Group’s integrated capabilities, we are proud to play a role in securing the supply chains that underpin these strategic sectors.”

Leighton Asia Managing Director Brad Davey said: “This extension highlights Leighton Asia’s capabilities and reinforces our role in enabling sustainable development in Indonesia. As part of CIMIC Group, we bring deep experience in resources infrastructure and critical minerals delivery. We are proud to contribute to the success of this significant project and the region’s economic and technological growth and are humbled by the trust placed in us by our client PT Vale Indonesia.”

Work under the extended contract is scheduled to commence in Q4 2025 and complete in Q4 2028.

Leighton Asia is also currently delivering mine infrastructure works for PT Vale’s Integrated Mines of Pomalaa (IMP) project, further supporting Indonesia’s emergence as a key player in the global critical minerals supply chain.

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About us:

CIMIC Group is an engineering-led services, construction and natural resources leader with a history dating back to 1899. Powered by 39,000 people, and pioneering technology and engineering, we deliver high-value and sustainable solutions across the lifecycle of assets, infrastructure and resources projects in around 20 countries. CIMIC Group comprises our engineering and construction businesses CPB Contractors and Leighton Asia, our integrated solutions providers UGL and Sedgman, our natural resources company Thiess (60% ownership), and our development and investment arm Pacific Partnerships – all supported by our in-house engineering consultancy EIC Activities. Our mission is to generate sustainable returns by delivering innovative and competitive solutions for clients and safe, fulfilling careers for our people. We strive to be known for our principles of Integrity, Accountability, Innovation and Delivery, underpinned by Safety.

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Ms Fiona Tyndall, Communications T+61 2 9925 6188

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