Copper prices hit a fresh high on Tuesday, rallying above $12,000 per ton on the London Metal Exchange, and on track to post their biggest annual gain since 2009, as supply disruptions and U.S. trade policies have created concerns about shortages. On Tuesday midday, copper prices hit as much as $12,044 per ton on the London Metal Exchange (LME), crossing the $12,000 a ton threshold for the first time ever. Prices have rallied and set several record-highs since October when concerns about supply shortages intensified. Copper prices have soared by…