Zinc concentrate TCs rise in China as import arbitrage deteriorates

Treatment charges (TCs) for zinc concentrates shipped into China increased in the two weeks to Friday October 10, with deteriorating import arbitrage conditions driving smelters to push for another increase in the processing fees, sources told Fastmarkets

Key takeaways:

  • Zinc concentrate TCs in China rose to $100–120/t on Oct 10, with some deals clearing above $130/t; sub-$100/t TCs are now rare and sentiment remains that charges will keep rising.
  • Import arbitrage has worsened (loss widened to $488.50/t), steering smelters toward domestic feed and away from spot imports; domestic concentrates are roughly 1,000–1,500 yuan ($140–210)/t cheaper than imported.
  • Trader long positions are adding near-term fee pressure, but the pace of TC increases may slow toward the end of Q4 as smelting capacity ramps and winter restocking needs are met.

Persistent gains in zinc concentrate TCs as market turns supportive

Fastmarkets’ twice-monthly assessment of the zinc spot concentrate TC, cif China rose by 7.32% to $100-120 per tonne on October 10, up from $95-110 per tonne a fortnight earlier.

Some smelters are concluding deals to pay processing fees above $130 per tonne, sources in China and Europe told Fastmarkets, adding that sellers are finding it difficult to secure TCs below $100 per tonne.

Zinc TCs have maintained their upward moment ever since the charges flipped into positive territory in January.

“I don’t think there are [concentrates sales] that could be concluded at TCs below $100 per tonne,” a trader based in Shanghai said.

TCs are now generally above two-digit levels and “its certain they will continue to go up,” a European trader said.

Import arbitrage squeezes spot buying

Continuously weakening import arbitrage conditions have resulted in Chinese smelters preferring to buy concentrates locally, limiting activities on the spot market for importing, some sources said.

“Due to the huge arbitrage loss, we did not buy many imported feeds recently,” a smelter source in central China said.

Fastmarkets’ zinc import arbitrage calculation widened further to a loss of $488.50 per tonne on Friday October 10, from a loss of $439.58 per tonne on September 26.

Domestic vs import zinc concentrate pricing gap widens

The arbitrage calculation means that domestic concentrates are cheaper compared with imported ores by about 1,000-1,500 yuan ($140-210) per tonne, a third trader said.

Zinc concentrates rich in by-products such as copper are, however, still finding takers among some smelters, although the TCs have continued to rise on the back of ample supplies, a fourth trader said.

Zinc concentrate TCs face upward pressure from trader positions

And a fifth trader said that those holding material they might want to sell in the future could also continue to push up the processing fees.

“There are some traders holding very long positions which they need to liquidate,” the fifth trader said. “I believe the TCs are going to keep rising.”

Still, there is growing scepticism that the positive momentum in the TCs will last, because smelting capacity is expected to increase in the fourth quarter.

Smelters have been restocking with raw materials for production during winter, a sixth trader said.

“[The] increase in TCs may [begin to] slow down at the end of the fourth quarter,” the sixth trader added.

Known for its exceptional anti-corrosive abilities, zinc is extensively utilized in the construction and automotive sectors. Learn more about our zinc price data options.

What to read next
The sharp rise in demand for lithium is outpacing the growth of an independent US supply chain, Ian Rodger, chief executive officer of lithium development company US Elemental, told Fastmarkets in an exclusive interview on Wednesday June 3.
Chinese zinc smelters expressed concerns of possible production cuts amid fierce competition for concentrates raw materials, as treatment charges (TCs) have dropped to historic lows at the end of May, though byproduct gains from sulfuric acid have still lent strong support to smelters’ margins, sources told Fastmarkets.
European automotive procurement faces growing complexity due to regional cost volatility and policy-driven supply chains reshaping material pricing and sourcing strategies. This demands granular, region-specific market intelligence for precise cost modeling and strategic decision-making.
Under the change, Fastmarkets will update the normalization coefficient for its Iron ore 61% Fe fines, cfr Qingdao and Iron ore 62% Fe fines, cfr Qingdao indices on a daily basis, from Tuesday. This allows the coefficient to better reflect daily price movements. The normalization coefficient was previously updated on a monthly basis. The decision […]
The assessment, which currently follows the UK holiday calendar, will follow the Singapore holiday calendar after the proposed change. There will be no change to the publication timing, and the assessment will continue to be published weekly on Wednesdays, at 7pm Singapore time. The purpose of the adjustment is to align the timing to the […]
The publication of Fastmarkets’ assessments of the nickel min 99.8% full plate premium, in-whs Shanghai, and the nickel min 99.8% full plate premium, cif Shanghai for Tuesday May 26 were delayed because of a reporter error. Fastmarkets’ pricing database has been updated. The following prices were affected:MB-NI-0143 Nickel min 99.8% full plate premium, in-whs Shanghai, […]