BEIJING, Dec 10 (Reuters) - Copper eased in London and Shanghai on Monday, as customs data released over the weekend showed a 3 percent year-on-year drop in unwrought copper imports by top consumer China, and Sino-U.S. trade tensions continued to weigh on prices. Imports came in at 456,000 tonnes in November, down from 470,000 tonnes a year earlier but up 8.6 percent from October. The year-on-year decline was "somewhat expected, with falling premiums in China reflecting some softness in demand after a period of strong restocking," ANZ wrote in a note, adding that imports in November 2017 were "unseasonably high." Copper import premiums in China SMM-CUYP-CN are currently at $67.50 a tonne, having hit an 18-month low of $62.50 a tonne last week. China's copper concentrate imports fell 4.6 percent year-on-year to 1.699 million tonnes last month. FUNDAMENTALS * LME COPPER: Three-month copper on the London Metal Exchange slipped 0.6 percent to $6,110.50 a tonne by 0352 GMT, after rising 1.2 percent on Friday. The most-traded February copper contract on the Shanghai Futures Exchange fell 0.2 percent to 48,920 yuan ($7,117.40) a tonne. * VEDANTA: India's environmental court said it will resume hearing Vedanta Ltd's case on Monday to decide whether to re-open the company's copper smelter, which was closed earlier this year after 13 people died when police fired on protesters. * ALUMINIUM: China's aluminium exports rose by 11.7 percent from October to 536,000 tonnes in November, the second-highest monthly total on record, after a higher export tax rebate on semi-finished products took effect on Nov. 1. ShFE aluminium was up 0.6 percent at 13,645 yuan a tonne. * ALUMINIUM: The U.S. International Trade Commission said on Friday it made a final determination that American producers were being harmed by imports of common alloy aluminium sheet products from China, a finding that locks in duties on the products. * RUSAL: The U.S. Treasury has given investors until Jan. 21 to divest their holdings in sanctioned firms including EN+ Group , and United Company Rusal.