RENEWABLE ENERGY MANUFACTURING IN INDONESIA: ADVANCING NICKEL PRODUCTION FOR THE GLOBAL EV BATTERY INDUSTRY

Trinitan Green Energy Metals (TGEM) utilizes patented Step Temperature Acid Leach (STAL) technology to refine high-purity Class I nickel from laterite ores in Indonesia. Unlike High-Pressure Acid Leach (HPAL), STAL operates at atmospheric pressure and is designed for small to medium-scale mines, offering a lower carbon and water footprint. TGEM is developing two closed-loop ecosystems—STAL One Ecopark in Bogor and IGNITE in Southwest Papua—to integrate waste management and resource sharing, aiming for net-zero emissions and compliance with international sustainability regulations, such as those in the European Union.

• TGEM produces high-purity Class I nickel in the form of mixed hydroxide precipitate (MHP) using Step Temperature Acid Leach (STAL) technology, which allows for the extraction of nickel from low-grade limonite ores that were previously considered overburden.
• STAL technology differs from High-Pressure Acid Leach (HPAL) by operating under normal atmospheric pressure (1 atmosphere) and using approximately 10 times less sulphuric acid per ton of ore processed.
• TGEM is expanding its operations through two integrated ecosystems: the STAL One Ecopark in Bogor, with an expected annual production of 10,000 tons of MHP, and the Indonesia Green Nickel Integrated Technology Ecopark (IGNITE) in Sorong, Southwest Papua, with a target capacity of 400,000 tons of MHP.
• The STAL process demonstrates lower environmental impacts than HPAL, with a carbon footprint of 15.5 tCO2 eq per ton of nickel output (compared to HPAL's 21 tCO2 eq) and a water footprint of 238 m3 per ton (compared to HPAL's 303 m3).
• TGEM employs a closed-loop zero-waste system that repurposes residues into valuable commodities, such as converting sulphur trioxide into sulphuric acid and processing iron residues into industrial bricks.
• The company's strategic focus includes complying with European Union regulations on circular economy principles for battery value chains, which require nickel producers to provide carbon footprint data.

APA

Sustainable Energy for All (n.d.). RENEWABLE ENERGY MANUFACTURING IN INDONESIA: ADVANCING NICKEL PRODUCTION FOR THE GLOBAL EV BATTERY INDUSTRY. https://www.seforall.org/system/files/2023-11/TGEM%20Company%20Profile.pdf

Chicago

Sustainable Energy for All. RENEWABLE ENERGY MANUFACTURING IN INDONESIA: ADVANCING NICKEL PRODUCTION FOR THE GLOBAL EV BATTERY INDUSTRY. n.d. https://www.seforall.org/system/files/2023-11/TGEM%20Company%20Profile.pdf.

Wikipedia

{{cite report |author=Sustainable Energy for All |title=RENEWABLE ENERGY MANUFACTURING IN INDONESIA: ADVANCING NICKEL PRODUCTION FOR THE GLOBAL EV BATTERY INDUSTRY |url=https://www.seforall.org/system/files/2023-11/TGEM%20Company%20Profile.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{sustainableenergyforallndrenewable, author = {{Sustainable Energy for All}}, title = {{RENEWABLE ENERGY MANUFACTURING IN INDONESIA: ADVANCING NICKEL PRODUCTION FOR THE GLOBAL EV BATTERY INDUSTRY}}, institution = {Sustainable Energy for All}, url = {https://www.seforall.org/system/files/2023-11/TGEM%20Company%20Profile.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }