Sulawesi Smelters Run on Coal So the EV in Berlin Can Be Called Clean
Indonesia's nickel boom feeds the global battery rush, but the receipts are written in cleared forest, captive coal, and rivers the locals stopped fishing in.
The pitch for the energy transition assumes the metal arrives clean. The nickel coming out of Sulawesi and North Maluku does not, and anyone reading the Indonesian press already knows it.
Indonesia sits on the world's largest nickel reserves and has spent the last six years turning that geology into leverage, banning raw ore exports so refining happens onshore. The policy worked on its own terms: smelter parks at Morowali and Weda Bay now anchor a supply chain that feeds stainless steel mills and EV battery makers, with Chinese firms holding the dominant equity and operational stake.
The catch is that the refining is filthy in a specific, documented way. Most of the smelter capacity runs on captive coal plants built inside the industrial parks, exempted from the national coal phase-down because they are classified as industrial, not public, power. Indonesia is selling battery-grade nickel to a decarbonizing world while burning more coal than ever to produce it.
The forest pays first
Satellite analysis from forest-monitoring groups has tracked steady canopy loss across Halmahera and the Morowali corridor, with mining concessions expanding into watersheds that local Indigenous communities, including the Hongana Manyawa on Halmahera, depend on. Reporting from Indonesian outlets and international NGOs describes silt running into rivers, fish catches dropping, and laterite runoff turning coastal water the color of rust after heavy rain.
Workers pay the second installment. Fatal accidents at Chinese-operated smelters, including a 2023 furnace explosion at PT Indonesia Tsingshan Stainless Steel that killed nearly two dozen Indonesian and Chinese workers, prompted unions and labor groups to demand audits the parent companies have largely deflected. The pattern is familiar: a permit issued in Jakarta, enforcement delegated to a province that lacks inspectors, and the contractor on site running shifts on a schedule the labor law on paper does not allow.
Who actually benefits
The headline number, Indonesia's nickel export earnings, hides the split. Refining margins and downstream battery investment sit with Chinese partners and a handful of domestic conglomerates with the political access to land the concessions. Host regencies get royalty shares that arrive late and infrastructure promises that arrive partially. The villagers who used to fish in the bay get a clinic and a complaint hotline.
This is where the foreign-driver framing matters, because softening it into "global EV demand" lets everyone off the hook. Chinese-linked capital is exporting a playbook: build fast, power with captive coal, settle disputes with side payments, and externalize the cleanup. Indonesian permit issuers, security contractors, and downstream buyers in Europe, Korea, and the US take that playbook and sign off on it, because the alternative is a slower, more expensive battery.
The cleaner battery has a bill attached
European regulators are drafting battery passport rules that would force disclosure of carbon intensity and sourcing. Korean and Japanese buyers are quietly asking for HPAL nickel produced with lower emissions, which exists but costs more. Whether any of that reaches a coastal village on Halmahera depends on enforcement nobody has built yet.
The EV in the showroom is marketed as the end of the oil age. The smelter feeding it runs on a coal plant the regulator agreed not to count, on land a community signed away under conditions the contract does not record, and the tailings pond is one heavy rain from the bay.
