The global zinc market has entered an unusual phase of regional divergence. China is carrying surplus zinc inventories — above the five-year average on the Shanghai Futures Exchange — while markets outside China are seeing a progressive tightening of availability as LME inventories decline to approximately one-month lows. This bifurcation is the defining structural feature of the zinc market entering mid-2026, and it has profound implications for trade flows, pricing, and procurement strategy. (FACT: Fastmarkets Monthly Base Metals Market Update, 2026; Metal.com, 2026)

The numbers tell the story clearly. On the Shanghai Futures Exchange, zinc stocks remain comfortably above their five-year historical average, reflecting a domestic market where supply is meeting demand with room to spare. Chinese zinc demand is growing at low single digits of around 1%, with galvanising demand steady but construction sector demand weak. On the supply side, Chinese zinc production has remained robust, and the country's smelter capacity is operating at levels sufficient to generate a surplus that the domestic market cannot fully absorb. (FACT: Metal.com, 2026)

6.9SHFE/LME ratio — well below the threshold required for economic zinc imports into China

The SHFE/LME ratio, currently hovering around 6.9, is the single most important price signal in this regional imbalance. At this ratio, it is not economically viable for Chinese importers to bring foreign refined zinc into the country. The import arbitrage — the difference between LME pricing plus freight, insurance, and duties versus SHFE pricing — has been firmly closed for weeks. This means that the surplus zinc accumulating in Chinese warehouses cannot be relieved by the usual mechanism of importing less, because reduced imports would only tighten the ex-China market further without addressing the domestic surplus. (FACT: Metal.com, 2026)

The logical corollary is that Chinese smelters and traders are now actively exploring export-oriented strategies. Selling Chinese zinc into international markets at LME-linked prices, even after accounting for export duties and logistics, may provide an outlet for the domestic surplus that the closed import window has trapped inside the country. The exploration of export windows by Chinese smelters represents a meaningful shift in trade flow dynamics. China has historically been a net importer of refined zinc, and the emergence of Chinese-origin material in export channels would add a new supply source to the already tightening ex-China market. (FACT: Metal.com, 2026)

Meanwhile, the tightening in ex-China markets is visible in LME warehouse data. LME zinc stocks have been trending downward and are now at their lowest level in approximately one month. In Europe and the United States, where zinc demand is supported by steady galvanising activity and infrastructure spending, the supply-demand balance is notably tighter than the global headline numbers suggest. This creates a pricing disconnection: a global surplus of 2026-27 on an annualised basis does not prevent spot tightness in specific regions at specific times. (FACT: Fastmarkets, May 2026)

The risk for market participants is that the two markets remain disconnected for an extended period. The SHFE/LME ratio at ~6.9 shows no immediate catalyst to converge — Chinese demand is not accelerating fast enough to absorb the surplus, and ex-China supply is not abundant enough to ease the tightness. LME prices, currently trading in the $3,400-3,500/t range, are likely to remain supported by the ex-China deficit, while SHFE prices at 24,600-24,820 yuan/t reflect the domestic surplus. The divergence will persist until either Chinese demand re-accelerates or ex-China supply disruptions — of which there are several brewing — tip the global balance from surplus toward deficit. (FACT: Fastmarkets, May 2026; Metal.com, 2026)

Fastmarkets projects H1 2026 price strength followed by a potential decline in H2, while Morgan Stanley's 2026 average forecast of $2,900/t implies a significant bearish turn later in the year. However, the regional imbalance complicates these forecasts: if ex-China markets continue to tighten while China remains in surplus, the price floor in the LME market may be higher than aggregate supply-demand models suggest. The surplus exists, but it is trapped in the wrong place. (FACT: Fastmarkets, May 2026; Investing News, Zinc Forecast, 2026)

What this means for buyers

For buyers outside China, the regional imbalance is a net positive for pricing power — LME prices are supported by the ex-China deficit regardless of what SHFE inventories look like. Buyers should be alert to the possibility of Chinese export flows emerging as a supplementary supply source, which would ease tightness in the seaborne market. This would be most visible in South Korea and Southeast Asia first, before reaching European or US markets. The ratio of SHFE to LME prices is the key leading indicator: when it moves above 7.2, the import window opens and Chinese surplus metal begins flowing into the international market, rebalancing the system. Below 7.0, expect continued tightness ex-China and LME price support.