Copper is heading for its steepest weekly decline since May, with London Metal Exchange futures down more than 2% as higher energy costs, a stronger U.S. dollar and weaker Chinese industrial-profit growth cloud the demand outlook. Three-month LME copper closed at $14,243.50 a ton on Thursday, down 1.16% on the day, while copper futures were also reported near $6.52 per pound and on track for a nearly 3% weekly decline. Supply risks and constrained inventories underpin bullish longer-term forecasts despite near-term demand weakness.