Copper vaulted above the $14,000 mark to a two-month ​peak on Tuesday, driven ​higher by dwindling inventories outside the U.S. and hopes for ​a resolution of the Iran war, even as the status of negotiations was unclear.Benchmark three-month copper on the London Metal Exchange jumped above $14,000 shortly after the release of LME stocks data ‌at 0800 GMT, ⁠rising ⁠as much as 1.3% to $14,053 a metric ton, its highest since June 2. The metal was trading up 1.1% at $14,024.50 as of 0900 GMT.The data showed orders to withdraw another ​7,225 tons of copper from LME warehouses , leaving available inventory at just 94,200 tons, little more than a day's worth of global consumption.That helped push the backwardation ​in the cash to three-month spread up to $105 a ⁠ton, the ‌steepest premium since January and a sign of growing ​tightness.The copper withdrawals, ​or cancelled warrants, were mostly from the U.S. storage hub ⁠of New Orleans, where metal can be transferred to the ​COMEX exchange for a premium. COMEX holds more ​than double LME and Shanghai Futures Exchange copper inventories combined at 650,736 metric tons.Meanwhile, conflicting signals from the United States and Iran over talks to end their five-month-old war fed uncertainty, with the latest attack on shipping in the Strait of Hormuz highlighting risks to flows of aluminium as well as energy.The ‌lightweight metal added 1.2% to $3,259.50 a ton, touching its highest since June 23."Aluminium has reclaimed the $3,200/t area, but we do ​not expect prices to ​hold comfortably at ⁠these levels without a renewed Middle East shock or another clear supply-risk catalyst," analysts at Sucden Financial wrote in a note.Nickel rebounded by 1.4% to $17,285 after losing ground ​on Monday, with traders awaiting clearer guidance on new nickel mining quotas in Indonesia.Zinc edgedup 0.4% to $3,655.50, after striking a nearly four-year high on Monday, while lead gained 0.9% to $1,883 and tin rose 0.8% to $55,750 after also hitting a two-month high.