Three-month zinc futures on the London Metal Exchange have reached a new four-year high of $3,990 per tonne, highlighting a deepening supply crisis in Western markets. Unlike copper, where investors anticipate a potential structural deficit, zinc is already demonstrating signs of an immediate and genuine shortage of available metal in Western regions, according to reporting from Reuters. Zinc inventories stored in LME warehouses have remained constrained throughout 2026.
Registered stocks currently stand at 100,525 tonnes, but approximately one-third of this volume has been canceled for delivery, meaning the actual quantity of metal available for immediate use is substantially smaller. The tightness in supply is reflected in the premium paid for immediately deliverable metal compared to three-month contracts. Last week, the spot zinc premium exceeded $230 per tonne, later declining to $139 per tonne, though both levels indicate severe supply constraints.
Global mining output has contracted unexpectedly during the first half of 2026. After last year's production rise of 4.8%, which interrupted a three-year decline, mining output fell by 2.6% year-on-year in the first half of 2026. Major operations including Antamina in Peru and Red Dog in Alaska have shifted toward lower-grade ore extraction, reducing production volumes.
Additional disruptions include Australia's Golden Grove mine, which altered its operating plan following a seismic event in September 2025, and Sweden's Garpenberg mine, operated by Boliden, which experienced similar difficulties after an earthquake in March 2026. Long-term production trends remain concerning. According to the International Lead and Zinc Study Group, global ore production declined by 8.6% between 2015 and 2025, while refined metal output at smelters remained relatively stable.
This widening gap between mined ore volumes and smelter capacity has intensified competition for available zinc concentrate. Treatment charges for converting zinc concentrate into refined metal have collapsed dramatically. Spot treatment charges for imported zinc concentrate fell to minus $113 per tonne last month, marking the lowest level ever recorded.
Smelters increasingly depend on by-products including silver and sulfuric acid to compensate for lost primary revenue. Some operators secured annual contracts at a benchmark rate of $85 per tonne, which remains exceptionally low by historical standards. China's position in global zinc supply has strengthened considerably.
Chinese zinc concentrate imports rose 30% year-on-year in 2025 and increased a further 5% in the first seven months of 2026, enabling Chinese plants to secure a larger share of available raw materials as global markets tightened. China's domestic refined zinc production rose 5.9% in the first half of 2026, while output in the rest of the world fell 3.4%. Western smelters face mounting economic pressure from both declining concentrate availability and collapsing treatment charges, compounded by rising electricity costs.
The Australian government has provided interim financial support to Trafigura's zinc plant in Hobart, Tasmania, enabling the facility to develop modernization plans and assess recovery of additional products including germanium and indium. Western zinc producers are increasingly vulnerable to capacity reductions or closures. Currently, Chinese companies deliver refined zinc to LME warehouses only in limited quantities, partially alleviating Western supply shortages.
If global ore production and smelter profitability do not improve, Western markets may face prolonged dependence on Chinese supplies to cover structural zinc deficits.
Source: mezha.net