In a context of a weak dollar, copper has reached its highest level in over a week on Monday. The tin has receded after a rise that had led it to an all-time record for this metal of soldering.

The most active copper futures contract on The Shanghai Futures Exchange rose by 2.50% to 103,130 yuan (14,827.97 dollars) per metric ton at 02:55 GMT, after increased by 3.25% to 103,880 yuan, its highest level in more than a week.

The three-month copper reference price on London Metals Exchange rose by 0.50% to 13,180.50 dollars per ton, after touching 13,260 dollars, a high as well in over a week.

The most traded tin futures contract at Shanghai jumped 6.72% to 447,800 yuan per ton, after having climbed by 10.27% to set a record of 462,720 yuan earlier in the session.

The London pewter reference price has however, fell by 1.89% to 55,745 dollars per ton, after reaching a record of 57,515 dollars.

Tin price gains were supported by speculative purchases stimulated by supply constraints, have indicated traders, the most recent coming from Indonesia, where the The government launched a crackdown, supported by the army, against exploitation illegal mining.

Pewter is the best performing base metal in 2026, with an increase of over 36% in Shanghai and over 37% in London.

Among the other base metals of SHFE, aluminum rose 0.83%, zinc rose by 1.14%, lead rose slightly by 0.26% and nickel jumped 4.36%.

Among the other metals in the LME, aluminum won 0.36%, zinc increased by 0.77%, lead increased by 0.22% and the nickel gained 1.91%.