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Andy Home: Trump, tariffs, and tin.

The LME Base Metals Complex got a sneak preview of what to expect.

The threat of similar tariffs on copper caused a transatlantic price gap that was unprecedented.

The micro tariff turmoil is now accompanied by macro tariff turmoil, as the markets are frightened at the prospect of a full blown trade war. This week, the London Metal Exchange index of base metals fell 6% as reciprocal tariffs became a reality.

Only one metal was spared the tariff tsunami. Tin continues to perform better than the rest of LME's pack, boosted by its own supply-chain chaos.

Shocks Rock Tin - Supply

LME's three-month tin increased by 25% in the first quarter 2025, surpassing gold's incredible run.

The tin market has been on a roller coaster ride due to a series of supply shocks. After 18 months, the market fell on the news that the giant Man Maw mine in Myanmar was to restart. Then the market rebounded when Alphamin Resources announced they were closing their Bisie mine in Congo due the the escalating violence in the eastern part of the country.

Tin has risen even more after the devastating earthquake in Myanmar that casts new doubts on Man Maw’s return.

Investors are rushing to get in on the action. The long positions of funds have reached record highs.

The LME stock market is slipping and the time-spreads are tightening. This adds to the volatile mix.

The bulls should also note that China has a plentiful supply of tin. Shanghai Futures Exchange has seen a 47% rise in stocks this year, and the 9,872 metric ton stock is at its highest level since September.

COPPER GAP - HOW TO IDENTIFY IT

Since February, when Trump launched a national-security investigation into copper imports, the U.S. has imposed tariffs on the copper trading market.

Arbitrage has been played out between the CME U.S. Customs-cleared Price and the LME Global Price. The market has tried to guess when and how much copper tariffs would be implemented.

The CME's record premium over LME Copper has led to a massive movement of metal into the United States. It remains to be determined how much metal makes it through U.S. Customs before tariffs become effective.

CME prices that were at record highs and the physical market disruption initially revived bullish sentiments. However, LME copper is now below $9,000 per ton as concerns grow over the adverse effects of U.S. tariffs on global manufacturing.

ALUMINIUM PREMIUM ACTION

Tariff trades have been reflected in premiums for regional markets.

Last month, the U.S. Midwest Premium widened to over $900 per ton above the LME Basis Price as the market priced the increase in U.S. Import Tariffs from 10% up to 25%.

The European premiums have dropped sharply in contrast to the U.S., suggesting that physical metal has already been diverted. Analysts were expecting high aluminium prices at the beginning of the year, but the market is now generating mixed signals. Like copper, it has also been affected by reciprocal tariffs.

NICKEL ATTENDS INDONESIA

Nickel spent the first quarter of 2025 stuck in a wide range between $15,000 and $17,000 per ton.

As overproduction in Indonesia floods the refined nickel chain, the price of nickel has fallen.

From 11% in 2024, the amount of Chinese Nickel stored at the LME has increased to over 50%. This metal is a product of Indonesian raw material that was processed in China. Indonesia is now producing its own refined metal which can also be found in LME sheds. Even Indonesian operators feel the pinch of the nickel price, which is so low. However, until Indonesia limits its production growth nickel will remain in oversupply.

The question is whether or not the Indonesian flood will continue to wash down into the Class II lower-grade segment of the Nickel market.

All depends on Indonesian margins.

Heavy Stocks Weigh on Heavy Metal

Talking about high stock prices.

Last month, someone cancelled 120,000 tons LME lead stock. However, there was no response from the market in terms of price or time spreads.

Nobody thinks that the physical metal market is short of this much metal. Lead is experiencing the type of LME warehouse arbitrage which comes with an oversupply and elevated stock levels. These stocks have grown from 21,500 to 331,000 tonnes at the beginning of 2023. Lead's price has held well despite the overhang of inventory, but this could be because lead is still in better condition than zinc.

ZINC MINE REBOUND

Zinc has consistently outperformed the LME group since the beginning of the year, despite the fact that exchange stocks have been falling steadily.

The market seems to be more interested in the zinc raw material narrative than its nuanced refine metal dynamics.

In 2024, the mined zinc production will fall by 2.8% on an annual basis. The raw materials supply chain will tighten to the point where smelter charges are negative in the second part of the year.

In 2025, restarts and new mining are expected to produce a significant recovery.

This new wave of mining supply appears to be gaining momentum. The smelter treatment charge, which had fallen to zero in 2024 due to a lack of mined concentrates, has now risen to $35 per ton.

The demand for zinc was flat last year. With little hope of a recovery within the global construction sector, which is a major use of zinc, a higher output from mining will likely lead to an oversupply on the refined metals market.

These are the opinions of a columnist who writes for.

(source: Reuters)