[Zinc concentrate TCs remain low, keep watching subsequent smelter operations]: From weekly data, the SMM Zn50 domestic weekly TC average fell by 150 yuan/mt Zn WoW to -200 yuan/mt Zn, and the SMM import zinc concentrate index fell by $0.56/dmt WoW to -$71.76/dmt..

A magnitude 6.3 earthquake struck Dachaidan in Haixi, Qinghai, on June 16, 2026. According to SMM, the main zinc smelters and mines in the Qinghai region have seen no impact so far. SMM will continue to follow up on subsequent developments.

[Geopolitical Risks Subside: How Will the Zinc Market React?] The Middle East conflict has recently shown clear signs of de-escalation. The market is now fully pricing in a U.S.-Iran agreement and the resumption of shipping through the Strait of Hormuz. What impact will this have on the zinc market?

As we near the midpoint of the year, zinc concentrate treatment charges (TCs) have repeatedly tumbled to historic lows. As of June 5, the average TC for domestic zinc concentrate fell to 50 yuan per metric ton of metal content, while the TC for imported zinc concentrate dropped to -70.75 US dollars per dry metric ton.

[June Refined Zinc Production to Decline, Smelter Profitability in Focus] According to SMM data, China's refined zinc production in May 2026 was down 0.41% MoM but up over 5.8% YoY. Cumulative smelter production from January to May was up nearly 5.8% YoY, exceeding expectations.

As of May 26, the Shanghai-LME zinc price ratio stood at 6.97, continuing its downward trend from 7.4 recorded in late March, which has led to a widening import loss of refined zinc ingots in China. According to calculations by Shanghai Metals Market (SMM), the current import loss of China’s refined zinc ingots has expanded to approximately RMB 3,800 per metric ton of metal.