Zinc Edges Higher as Nexa Gains and Buenaventura Slips
Key Facts
- London zinc settled higher the three-month London Metal Exchange contract closed at US$3,920 a tonne on Friday, September 18, 2026, up 0.99%.
- Nexa Resources edged up the Peru and Brazil miner and smelter closed up 0.70% at US$13.01, acting as the purest LatAm zinc proxy.
- Buenaventura slipped the Peruvian producer with zinc exposure fell 1.09% to US$34.33, lagging the industrial metal.
- Tight ore supply gripped the market a shortage of mined concentrate has kept smelters hungry and supported the metal through September.
- Galvanised steel linked zinc to construction demand from coated steel used in buildings and infrastructure underpinned the industrial bid.
- Peru led the regional supply story the country is the world’s second-largest zinc producer, with Mexico and Bolivia also in the global top ten.
Today’s Focus
Zinc rose again on Friday, September 18, as the three-month London Metal Exchange contract closed at US$3,920 a tonne, a gain of 0.99%. The move was powered by tight ore supply and steady demand for galvanised steel used in construction.
LatAm proxies split. Nexa Resources, the Peru and Brazil miner and smelter, added 0.70% to US$13.01. Buenaventura, a Peruvian producer with zinc exposure, eased 1.09% to US$34.33.
The supply squeeze is the core driver. Smelters are competing for scarce mined concentrate, while investors are watching Peru, Mexico and Bolivia — three top-ten global producers — for any export or production signals.
What matters today. The zinc rebound rests on tight ore supply meeting resilient galvanised-steel demand, with LatAm producers capturing the upside.
01 The session in one read
Zinc rose on Friday, September 18, as the three-month London Metal Exchange contract closed at US$3,920 a tonne, up 0.99%. The industrial metal was carried higher by a physical tightness in mined ore and steady demand from galvanised steel.
Latin American names did not follow. Nexa Resources rose 0.70% to US$13.01, while Buenaventura fell 1.09% to US$34.33, a reminder that these proxies do not track the metal tick for tick.
The rebound looks structural rather than speculative because it is anchored in a physical shortage of mined concentrate. Smelters are paying up for feed, which supports prices even when broader risk appetite wobbles. The variable to watch is any sudden increase in Peruvian or Mexican concentrate exports, which would loosen the squeeze and test the rally.
02 The board
The two LatAm proxies told a mixed story. Nexa Resources mines and smelts in Peru and Brazil, which makes it the most direct play on the metal. It added 0.70% to US$13.01, a smaller move than the metal itself.
Buenaventura, a Peruvian miner with zinc alongside precious metals, fell 1.09% to US$34.33. The dip shows how a diversified producer can miss a move in one industrial commodity.
| Asset | Level | Change |
|---|---|---|
| Nexa Resources | US$13.01 | +0.70% |
| Buenaventura | US$34.33 | -1.09% |
Source: RT close, 2026-09-18. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
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| IBOV | 185,229.17 | -0.41% | +21.85% | 185,992.03 | 168,310 | 167,142 | — |
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| USD/BOB | 11.64 | -0.76% | +72.04% | 11.73 | 11.72 | 11.64 | — |
| USD/DOP | 58.34 | +1.25% | -3.44% | 57.62 | 58.34 | 58.04 | — |
| USD/CRC | 445.92 | +0.89% | -9.71% | 441.97 | 448.50 | 445.92 | — |
03 What moved it
Tight ore is the engine. Smelters are scrambling for mined zinc concentrate, and that physical shortage kept the metal firm. No new mine supply arrived to ease the pressure.
On the demand side, galvanised steel did the work. Zinc’s largest use is coating steel against rust, which ties its fortunes directly to construction and infrastructure spending. That demand remained firm into the session.
04 The Latin American read
Peru is the world’s second-largest zinc producer, which makes every move in the metal felt through the Lima-listed miners and their New York shares. Mexico and Bolivia, both top-ten global producers, add regional heft.
For foreign investors, Nexa is the cleanest route: it runs mines and smelters across Peru and Brazil, giving exposure to both ends of the supply chain. Buenaventura offers a blended play, where zinc strength can offset softer precious-metal sessions.
05 The names to watch
Nexa Resources closed up 0.70% at US$13.01, the better of the two LatAm proxies. The company’s Brazilian smelting arm means it can benefit from tight concentrate margins when ore is scarce.
Buenaventura eased to US$34.33, a 1.09% loss, even with its zinc optionality. Both names are sensitive to any shift in Peruvian mining policy or export logistics.
06 The outlook
The rally can extend if concentrate shortages persist. Watch for any restart of idled mine capacity in Peru or Mexico, which would quickly change the arithmetic. Until then, galvanised-steel demand from construction provides a steady floor, keeping LatAm producers in favour.
07 What to watch
- Peruvian concentrate exports: Any surge in mine output from Peru, the second-largest producer, would ease tight ore and pressure zinc prices.
- Nexa smelter margins: As a miner and smelter, Nexa’s profitability hinges on treatment charges and ore availability; watch its next production update.
- Galvanised steel orders: Construction and infrastructure spending data will show whether zinc’s demand anchor remains solid.
- Mexican and Bolivian supply: Both are top-ten producers; any disruption or expansion shifts the global concentrate balance.
Frequently Asked Questions
Why did zinc rise on Friday?
The three-month London Metal Exchange contract closed up 0.99% at US$3,920 a tonne, on tight mined ore supply and firm galvanised-steel demand.
Why is Nexa Resources the key zinc proxy?
Nexa mines and smelts zinc in Peru and Brazil, giving it direct exposure to both ore supply and refined metal.
How did Buenaventura trade?
Buenaventura fell 1.09% to US$34.33, even though its Peruvian mining portfolio includes zinc alongside precious metals.
What role does Peru play in zinc?
Peru is the world’s second-largest zinc producer, so its mining output shapes global supply.
Market data: RT
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