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Sulphur 422 Jan-Feb 2026

29 January 2026

Autoclaves arrive for Pomalaa HPAL project

Autoclaves arrive for Pomalaa HPAL project

PT Vale Indonesia Tbk says it has officially received the first two autoclave units for the Pomalaa high-pressure acid leaching (HPAL) project, a key component of the Indonesia Growth Project (IGP) Pomalaa. This delivery marks a critical milestone in preparing Indonesia’s high-tech nickel processing facility for operation. The welcoming ceremony was attended by PT Vale and PT Kolaka Nickel Industry (KNI) management, along with strategic project partners including Indonesia Pomalaa Industrial Park (IPIP), Huayou Southern Construction Command, MCC20, and other stakeholders.

The Pomalaa HPAL facility is designed to produce up to 120,000 t/a of mixed hydroxide precipiate, reinforcing Indonesia’s role as a strategic player in the global battery industry. Three additional autoclaves are scheduled for delivery soon, with timelines being finalised by the KNI team.

Muhammad Asril, Chief Project Officer at PT Vale Indonesia, stated: “The arrival of these two autoclaves is a major milestone for the Pomalaa HPAL Project. Autoclaves are the heart of the HPAL process, enabling the conversion of laterite ore into high-value products like MHP. Through this technology, we are not only enhancing the value of Indonesia’s mineral resources but also strengthening the country’s role in the global EV battery supply chain. We appreciate the collaboration of all partners and remain committed to advancing construction with a focus on safety, sustainability, and long-term benefits for local communities.”

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