What the LME Just Told Us About Copper, Tin, and Where the Real Squeeze Is

By Siam Sukkhee Trading Co., Ltd — 2026-10-20 — Bing News — zinc price LME

The LME Week debate just wrapped in London. A room full of traders, analysts, and hedgers voted on which metal has the most upside over the next year. The result was odd.

Copper started with nearly three-quarters of the vote. After the panel made their case, it dropped to half. Tin climbed to 26.5%. Something shifted.

The Data Centre Story Is Real. And Messy.

Graeme Train from Trafigura laid out the copper picture cleanly. Copper demand has grown by 2.7 million tonnes over the past five years—the same amount as the five years before Covid hit. But almost none of that growth is coming from construction, infrastructure, autos, or white goods anymore. Those were the old drivers, mostly in China. They've contributed nothing this cycle.

All the growth is coming from somewhere else.

Data centres have swallowed about 1 million tonnes of copper. That's roughly 3 percent of global demand. On Trafigura's numbers, another 1 to 2 million tonnes could be added over the next five years. The maths works. The story is clean.

Then he added a wrinkle. The US has hoarded about 900,000 tonnes of copper this year alone. That's a quarter of all supply growth. It's sitting in American vaults, taken off the real market. He called it "a quantum state of being both in a surplus and not in a surplus at the same time." He wasn't joking.

That's why copper's vote dropped. The structural demand is there. But the timing is murky. Tariff policy. When the hyperscalers actually spend the money. Whether smelters can keep the ore flowing. These are no longer engineering questions.

Tin Has a Simpler Problem

Tom Langston from the International Tin Association spoke next. The tin price has more than doubled since 2024. It's up about 20 percent just this year.

The reason is almost boring by comparison. Semiconductors are selling at record highs. AI buildout needs solder. Tin is the glue that holds electronics together. Indonesia and Myanmar have tightened supply. The International Tin Association says significant new supply investment will be needed to avoid structural deficits in the next decade.

Tin doesn't have a US tariff complicating the picture. It doesn't have a storage surge to explain away. Supply is tight. Demand is climbing. That's it.

Zinc and Lead Told Very Different Stories

Natalie Scott Grey from StoneX said zinc was this year's clear outperformer, driven almost entirely by supply concerns. Ore scarcity from environmental and structural disruptions. Lower refined output outside China. Long positions across the global exchanges. She pointed to four variables that would determine whether incoming mine supply could rebalance the market: timing of arrivals, how long loss-making smelters can survive, whether China exports refined zinc, and whether investors stay bullish. Every one of those is a gamble.

Lead was the opposite story. Worst performing base metal this year. The market is in surplus. Global stocks are at record highs. But that's also its strength. Lead is recession-proof because two-thirds of its end use is replacing lead acid batteries—a replacement cycle, not a discretionary purchase.

Nickel and Aluminium Were Sideshow Acts

Indonesia has made it clear it doesn't want to mine its best ore at what it deems low prices. The government announced mining quotas early in 2026. Nickel has tanked this year—worst performer of the base metals complex. A drought in Indonesia and rainy season in the Philippines could pinch supply further. Then there's the sulfur premium spiral from the Strait of Hormuz closure, which some traders have dodged this year but won't in 2027 contract negotiations.

Aluminium premiums in Rotterdam could hit $1,000 per tonne if the US hands Canada a 25 percent tariff deal, according to Harbor Aluminium's Jorge Vazquez. That would push US Midwest premiums down to 60 to 80 cents per pound from 110 cents now. Vazquez put the probability of that deal at 75 percent. P1020 units currently propping up Rotterdam would shift to the US, leaving Europe tight. It's pure tariff arithmetic.

What This Means for Trading

Copper is still the better long-term story. But the room sensed execution risk. The data is real. The build-out is real. But it's now tangled with geopolitics, stock-build timing, and smelter availability. Tin got the upgrade because it has none of those complications—just a straightforward supply squeeze.

That's the debate. Not which metal will go higher. Which one gets there without surprises.

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Tags: zinc trading Southeast Asia