Key Facts
- LME zinc cash settled at US$3,980 per tonne on Friday, with three-month metal around US$3,824, leaving a US$156 backwardation that signals scarce nearby supply.
- Nexa Resources New York shares closed at US$15.40 up 9.45% on the day, the sharpest move among the region’s zinc-mining proxies.
- Buenaventura closed at US$35.47 up 3.83% as the Peruvian precious and base metals producer tracked the zinc rally.
- Galvanised steel absorbs about 60% of refined zinc use roughly 8.2 million tonnes a year, keeping infrastructure demand the key swing factor.
- LME zinc warehouse stocks stood around 93.1 thousand tonnes down about 12% over 30 days, reinforcing fears of tightening available metal.
- Nexa reaffirmed 2026 zinc production guidance of 310–360 thousand tonnes after producing 79.3 thousand tonnes in Q2 and 158.7 thousand in the first half.
Today’s Focus
Zinc’s rally turned sharper on Friday, August 21, 2026, as traders responded to a combination of falling LME warehouse stocks and mine supply disruptions that have squeezed concentrates. The cash contract’s premium over three-month metal showed buyers paying up for immediate delivery.
For Latin America, the move is a direct signal: Peru, Bolivia and Mexico are major zinc-mining countries, and their producers ship concentrates to global smelters now hungry for raw material. Nexa Resources, with operations in Peru and Brazil, surged 9.45% in New York to US$15.40.
Buenaventura, the Peruvian miner, rose 3.83% to US$35.47. Demand for galvanised steel, used in bridges, power-transmission towers and rural electrification, remains the metal’s structural anchor, supported by infrastructure spending in India and the United States.
What matters today. The market is pricing a supply shortage right now, and Latin American miners with spare concentrate capacity are the clearest corporate beneficiaries.
01 The session in one read
Zinc extended its climb on Friday, August 21, 2026, with LME cash metal settling at US$3,980 per tonne, well above the three-month contract near US$3,824. The US$156 cash-to-three-month spread, known as backwardation, tells outsiders something blunt: buyers are paying a premium to get metal now rather than later.
That scarcity signal fed straight into Latin American zinc miners. Nexa Resources, the Luxembourg-headquartered, Votorantim-controlled producer with mines in Peru, closed at US$15.40 in New York, a 9.45% daily gain, while Buenaventura rose 3.83% to US$35.47.
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02 The board
Nexa Resources at US$15.40, up 9.45%, was the standout among the region’s zinc proxies, reflecting both the metal’s rally and the company’s reaffirmed production guidance for the year.
Buenaventura closed at US$35.47, up 3.83%, a more moderate move for a miner whose portfolio spans precious and base metals. The divergence in daily gains reflects Nexa’s heavier direct exposure to zinc and its smelting margins.
| Asset | Level | Change |
|---|---|---|
| Nexa Resources | US$15.40 | +9.45% |
| Buenaventura | US$35.47 | +3.83% |
Source: RT close, 2026-08-21. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
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Latin America — Cross-Market Board
| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 171,031.73 | +1.85% | +21.85% | 167,927.15 | 168,310 | 167,142 | — |
| IPSA | 11,338.38 | +0.89% | — | 11,237.90 | 11,210 | 10,984 | 1,513,213,483 |
| IPC MEX | 65,729.18 | +2.14% | +12.17% | 64,349.80 | 66,121 | 65,405 | 108,886,187 |
| MERVAL | 2,913,184 | +1.30% | +30.51% | 3,022,485 | 3,042,365 | 2,991,150 | — |
| COLCAP | 2,459.23 | +0.61% | — | 9.04 | 9.05 | 9.02 | 4,133 |
| BVL PERÚ | 58,698.13 | +2.60% | — | — | — | — | — |
| USD/BRL | 5.16 | +0.01% | -5.13% | 5.16 | 5.18 | 5.14 | — |
| EUR/BRL | 5.95 | +1.01% | -5.83% | 5.89 | 5.98 | 5.94 | — |
| USD/MXN | 17.06 | -0.24% | -8.58% | 17.10 | 17.08 | 17.01 | — |
| USD/CLP | 913.98 | +0.04% | -5.67% | 913.65 | 915.11 | 906.68 | — |
| USD/COP | 3,140 | +0.03% | -22.04% | 3,139 | 3,141 | 3,105 | — |
| USD/PEN | 3.36 | -0.66% | -4.82% | 3.38 | 3.38 | 3.35 | — |
| USD/ARS | 1,493 | +0.10% | +12.96% | 1,491 | 1,494 | 1,480 | — |
| USD/UYU | 40.27 | +1.24% | +1.80% | 39.77 | 40.27 | 40.23 | — |
| USD/PYG | 5,939 | +1.68% | -19.54% | 5,841 | 5,939 | 5,925 | — |
| 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
LME-tracked warehouse stocks stood around 93.1 thousand tonnes on Friday, down roughly 12% over the previous 30 days, tightening available supply just as mine disruptions constrained concentrate output. Traders described zinc as trading at its strongest level since mid-2022, a four-year peak.
The demand side remains anchored by galvanised steel, the rust-proof coated steel used in bridges, transmission towers and rural electrification, which accounts for about 60% of refined zinc consumption. Infrastructure programmes in India and the United States have offset a cooling Chinese commercial-property market.
04 The Latin American read
Peru, Bolivia and Mexico are major zinc-mining countries, and their mines sell concentrates to smelters globally. When physical zinc is scarce, these producers can charge richer treatment terms and benefit directly from higher metal prices.
Nexa Resources, listed in New York and operating across Peru and Brazil, produced 79.3 thousand tonnes of zinc in the second quarter and 158.7 thousand tonnes in the first half of 2026. It reaffirmed full-year zinc guidance of 310–360 thousand tonnes, giving investors a concrete output floor during the rally.
05 The names to watch
Nexa Resources carries the most direct zinc torque: it mines and smelts, so rising metal prices and scarce concentrates can boost earnings on both sides. The 9.45% jump to US$15.40 on Friday suggests investors are re-rating that leverage quickly.
Buenaventura, up 3.83% to US$35.47, is the broader Peruvian mining proxy, with zinc exposure alongside gold and silver. The smaller gain reflects a diversified revenue mix, though zinc strength still adds a welcome tailwind.
06 The outlook
The market’s direction depends on whether Chinese smelters, facing a SHFE/LME zinc price ratio near 6.7, open a sustained export window for refined ingot. Such flows could ease the physical squeeze that backwardation is signalling.
Until then, the cash premium over three-month metal and declining LME stocks argue for continued strength, with Latin American concentrate suppliers positioned to capture higher margins.
07 What to watch
- SHFE/LME zinc price ratio: A ratio near 6.7 has opened an export window for Chinese ingot; sustained exports would loosen Western supply and cap prices.
- LME warehouse stock flows: Stocks around 93.1 thousand tonnes, down 12% in 30 days, are the clearest gauge of whether physical tightness is easing or worsening.
- Nexa quarterly production: Guidance of 310–360 thousand tonnes for 2026 means any operational update from Peru or Brazil can move the stock sharply.
- Global infrastructure spending: Galvanised steel demand for bridges, power-transmission towers and rural electrification determines the durability of zinc’s rally.
Frequently Asked Questions
Why did zinc rise on Friday, August 21, 2026?
LME warehouse stocks fell to around 93.1 thousand tonnes, down 12% in 30 days, while mine supply disruptions tightened concentrates, pushing cash zinc to US$3,980 per tonne.
What does backwardation in zinc mean?
It means near-term metal costs more than later delivery; the US$156 gap between cash and three-month on Friday showed buyers paying up for immediate supply.
How did Latin American miners react?
Nexa Resources rose 9.45% to US$15.40 and Buenaventura gained 3.83% to US$35.47, as Peru, Bolivia and Mexico are major zinc-mining countries.
What drives zinc demand?
Galvanised steel uses about 60% of refined zinc, roughly 8.2 million tonnes a year, supported by infrastructure in India and the US as Chinese property cools.
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error
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