Zinc has emerged as the top performer on the Shanghai Futures Exchange, with prices rising 5.57% in August as global supply tightens and overseas stockpiles contract significantly, according to reporting from Reuters. The rally is being driven primarily by shrinking inventory buffers rather than demand surges alone. LME zinc stocks have fallen more than 20% over a two-month period, while mine disruptions have reduced the availability of zinc concentrate in the market.
These supply pressures are manifesting in smelter treatment charges—the fees mining companies pay smelters to convert concentrate into refined metal—which have declined to negative $110 per ton, as noted by ANZ, an Australian financial institution. Negative treatment charges represent an unusual market signal indicating upstream supply tightness. When treatment fees turn negative, smelters are effectively paying to secure feedstock, which compresses their profit margins and creates risk of reduced refined zinc production or spot market offerings.
This dynamic becomes critical when exchange warehouse inventories are already lean, as even modest supply disruptions can drive rapid price movements in nearby futures contracts as traders compete for prompt delivery. For broader markets, the implications are substantial. Negative treatment charges at $110 per ton underscore the severity of supply constraints.
Market participants anticipate that tightness may first appear in the front end of the futures curve through elevated nearby premiums and increased backwardation risk, where near-term prices exceed forward-dated ones. Should this pattern persist, it could elevate zinc costs for steel galvanizing operations, a principal end-use application, thereby affecting cost structures for manufacturers dependent on zinc-coated steel products. Source: Reuters and ANZ analysis, reported by Finimize
Source: finimize.com