Indonesia — Indonesia is the world's largest tin exporter, producing approximately 25% of global supply from the Bangka-Belitung islands. The domestic smelting industry has matured from raw ore export to refined tin products: solder alloys for electronics, tin plate for food packaging, and organotin chemicals. PT Timah, the state-owned miner, operates integrated mining-to-smelting operations.
Tin is critical for the electronics industry — every semiconductor package requires tin solder. As semiconductor manufacturing expands across Southeast Asia (Vietnam, Malaysia, Thailand), Indonesia's proximity as a refined tin supplier creates a regional supply chain advantage. The challenge is illegal mining, which degrades Bangka-Belitung's ecosystems and undercuts formal producers.
The strategic concern is resource depletion: at current extraction rates, Bangka-Belitung's reserves face exhaustion within decades. Indonesia is exploring offshore tin deposits and investing in tin recycling technology, but the window for capturing maximum value from tin assets is finite. The downstream lesson applies broadly: resource sovereignty requires not just export bans but domestic industrial capacity to process before reserves run out.