COPPER was on course for a record close after rising on signs of tightening global supply, Bloomberg reports. Strong demand linked to data centres and power grids has supported prices, but supply constraints have been equally important. However, uncertainty over US tariffs continues to distort global trade flows. For now, tight near-term supply remains the key trend. Cash copper continues to trade at a premium to three-month futures on the LME, signalling strong demand for immediate delivery.