Tin

Indonesia supplies ~22-26% of global primary tin and is the most important refined tin exporter. A significant restriction (similar to the 2013 ore export ban) would likely trigger a 20-40% LME price increase within 3-6 months, draw down warehouse inventories to stressed levels, and create procurement difficulties for solder manufacturers globally. Alternative suppliers (Bolivia, Peru, Australia) cannot ramp fast enough to offset Indonesian supply loss in the short term.

No full-performance substitute exists. SAC alloys (96.5% Sn, 3% Ag, 0.5% Cu) are mandated by RoHS compliance across the EU, China, and most markets. Bismuth-based alternatives work for some low-power consumer applications but fail reliability requirements for automotive, aerospace, and industrial electronics. Switching solder formulations requires 2-5 years of qualification testing. Tin demand in solder is highly inelastic — price increases are absorbed rather than causing substitution.

Yes. DRC-sourced cassiterite is classified under the 3TG conflict mineral framework (tin, tantalum, tungsten, gold) by both US Dodd-Frank Section 1502 and EU Regulation 2017/821. Companies must conduct supply chain due diligence to verify their tin does not finance armed groups. The ITSCI program provides mine-to-smelter traceability enabling certified DRC tin to access developed-country markets. DRC represents only 3-5% of global supply but carries outsized regulatory and reputational significance.

Approximately 30-35% of global refined tin comes from secondary sources — primarily solder dross from electronics manufacturing (40-45%), tinplate detinning from food cans (35-40%), and tin alloy scrap (10-15%). While recycling is an important buffer, it cannot fully offset a major primary disruption: during the 2013 Indonesia ban and 2021-2022 price spike, recycling increased by only 5,000-10,000 t/yr over 12-18 months — far short of Indonesia's 70,000-80,000 t/yr exports. Recycling could reach 40-45% of supply by 2030 with sustained investment.

Tin is one of the most volatile LME base metals. From 2020 to 2024, LME 3-month tin moved from ~$14,000/tonne (COVID trough, April 2020) to nearly $50,000/tonne (March 2022), corrected to $20,000-25,000 (late 2022), then recovered to $28,000-38,000 through 2024. The tin market's small total annual value (~$10-12 billion) makes it susceptible to speculative positioning and supply shocks from Indonesia, Myanmar, or inventory drawdowns.

Myanmar's Wa State produces 12-17% of global tin, but virtually all concentrate is shipped to China's Yunnan province for smelting. This makes Myanmar production effectively a feedstock stream for China's dominant refining complex. When Wa authorities suspended mining permits in mid-2023, it reduced Chinese smelter feed and contributed to global price firmness. Supply chain traceability is extremely limited — there is no ITSCI-equivalent operating in Wa State.

Three trends are accelerating solder demand at 3-5% CAGR through 2030: (1) EV production — a typical EV contains 1.5-3x more solder than an ICE vehicle due to power electronics, battery management, and infotainment systems; (2) 5G infrastructure — base station RF modules and fiber-optic transceivers; (3) AI data center buildout — servers with high-density PCBs. Tin-based battery anode R&D (994 mAh/g theoretical capacity) represents a potential longer-term demand catalyst.