Halmahera: The Indonesian Giant Shaping the Future of Electric Vehicle Batteries

Countries & Cities · Published 30 September 2026 Swipe more like this →

In short: Once known as Jilolo, Halmahera is the largest island in Indonesia's North Maluku province. While historically overshadowed by neighboring Ternate and Tidore, this volcanic landmass is now a global focal point for nickel extraction, fueling the modern transition to electric vehicles while grappling with its complex, often violent, past.

Covering 17,780 square kilometers, Halmahera is the seventh-largest island in Indonesia. Its geography is defined by tectonic activity, sitting on an island arc formed by the northward migration of Australia and the subduction of the Pacific Plate. This volcanic landscape features active peaks like Dukono and Mount Ibu, and its eastern peninsula is characterized by ultramafic rocks and ophiolites. The island is also a site of unique biodiversity, home to the endemic flightless invisible rail and the palm species Jailoloa halmaherensis.

The island's history is deeply intertwined with the Maluku kingdoms, including the Sultanate of Jailolo and the 13th-century Loloda Kingdom. During World War II, it served as a Japanese naval base at Kao Bay. In the late 1990s and early 2000s, the region suffered through the Maluku sectarian conflict, a period of intense violence between religious militias that resulted in thousands of deaths. Today, the island is shifting its administrative and economic center. In 2010, the provincial capital moved to Sofifi, and the town of Tobelo is currently undergoing rapid development to challenge Ternate's historical dominance.

Economically, Halmahera has become a critical node in the global supply chain for electric vehicle batteries. PT Weda Bay Nickel operates the Weda Bay Industrial Park, one of the world's largest nickel and cobalt mining operations. Following a 2022 government ban on the export of unprocessed nickel ore, the island has seen a surge in industrial infrastructure, including the construction of at least 11 power plants to process ore locally. This industrial expansion, however, poses significant risks to the island's indigenous populations, such as the semi-nomadic Togutil people, whose forest-dwelling communities face threats from the ongoing mining projects.

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