The global tin market's transition from surplus to deficit, first flagged by multiple analysts in early 2026, is now expected to be prolonged through at least 2027, as the combination of unresolved supply disruptions and a nearly empty development pipeline prevents any near-term rebalancing. (FACT: MINING.COM, Crux Investor, 2026)
Coface projects refined tin output growth of just 3% in 2026, versus demand growth of 3.5%, pushing the market into deficit for the first time since 2021. Critically, the supply side has no quick lever to pull: the thin pipeline of new mining projects means this deficit cannot be resolved by price signals alone. (FACT: Coface, February 2026)
Three simultaneous supply disruptions define the current market.
Myanmar — the Man Maw mine in Wa State, which supplied an estimated 30% of global tin concentrate before its August 2023 shutdown, remains completely offline. The International Tin Association announced in July 2025 that shipments would resume, but as of May 2026 no restart has materialised. Myanmar and the DRC together account for roughly 20% of global tin production and 60% of Chinese tin ore imports. (FACT: MINING.COM, BMI/Fitch Solutions, 2026; mining.com.au)
Indonesia — the world's largest tin exporter — saw exports collapse to 45,800 tonnes in 2024, a 20-year low, following President Prabowo Subianto's crackdown on illegal mining operations. While the official export quota was increased to 60,000 tonnes for 2026 (from 53,000 tonnes in 2025), analysts note this largely formalises previously illegal volumes rather than expanding genuine supply. Monthly export data through early 2026 has consistently fallen below 4,000 tonnes, well below historical norms of 6,000–7,000 tonnes. Together with Myanmar, Indonesia accounts for approximately 40% of global tin exports. (FACT: Reuters, January 2026; Pricepedia, 2025; Expert Market Research)
Democratic Republic of Congo — the DRC's tin sector faces persistent governance challenges, infrastructure deficits, and conflict-related disruptions that have constrained output from the country's eastern provinces. These are structural issues with no short-term resolution path. (FACT: mining.com.au, 2026)
The response from new mine development is measured in years, not months. South Crofty in Cornwall, UK — the highest-grade tin project globally — is targeting first production in mid-2028 at an initial 4,700 tonnes per year. Cornish Metals secured US$210 million in bond financing in May 2026 and expects to announce a final investment decision in summer 2026, but even full development will replace only a fraction of the supply lost from Myanmar alone. (FACT: International Tin Association / Cornish Metals, May 2026)
Fastmarkets analysis indicates that while Indonesian production could partially recover by 2026, "structural market deficits are expected to persist through 2027." The recovery, if it materialises, would merely ease the tightness rather than eliminate it. (FACT: Fastmarkets, via Discovery Alert, 2026)
LME tin inventories stand at just 8,285 tonnes as of May 22, 2026 — roughly 2.5 weeks of global consumption. This is the thinnest inventory buffer since the 2021–2022 supply crisis, and it provides almost no cushion against an unexpected disruption. Combined LME and SHFE inventories surged to ~19,000 tonnes in January 2026 during the speculative rally, but the fundamental deficit has since drawn them back down. (FACT: LME, May 22, 2026; tin-inventories-rise-19kt-may-2026)
Semiconductor demand adds a further structural layer to the deficit. Solder accounts for approximately 50% of world tin demand, and the AI-driven expansion of semiconductor fabrication, data centre construction, and advanced electronics packaging is creating demand growth that the supply base cannot match. The ITA projects tin demand will increase 25% by 2035 — a trajectory that, without new mine investment, guarantees persistent deficits. (FACT: International Tin Association, 2026)
"In the longer term, the main challenge will be the expansion of mining capacity, as the depletion of exploited deposits is a major vulnerability for the entire value chain," Coface warns. With 40% of global tin supply coming from artisanal and small-scale miners, the market is structurally vulnerable to regulatory enforcement, conflict, and weather disruptions — vulnerabilities that the current deficit environment amplifies with every passing month. (FACT: Coface, 2026; ITA, 2026)
Action: This is not a cyclical deficit — it is structural, multi-year, and supply-side constrained. For electronics, solder, and semiconductor buyers, there is no "wait for new supply" option before mid-2028. Secure term contracts through 2027. Build inventory above normal working capital levels. Qualify secondary/recycled tin sources. For a company consuming 500 tonnes/year, the difference between procuring at $45,000/t (BMI forecast) versus $54,000/t (current spot) is $4.5 million/year — and without coverage, spot exposure could be materially higher.
Horizon: Deficit conditions persist through Q2 2027 at minimum. The first meaningful new supply arrives mid-2028 (South Crofty, ~4,700t/yr). Even then, that replaces less than half of the Myanmar supply loss.
Trigger: Watch (1) LME inventories — below 5,000t signals imminent squeeze; (2) Myanmar restart news — the single biggest bearish catalyst; (3) Indonesian export data — sustained exports below 4,000t/month confirms enforcement is structural, not seasonal.