India, Jan. 15 -- Copper futures ended higher on Tuesday, supported by surge in the yuan and solid trade data from China, the world's top metals consumer. Copper prices improved further ahead of the signing of a Sino-US Phase One trade deal today at the White House. Reports showed China has pledged to buy almost $80 billion of additional manufactured goods, over $50 billion more in energy supplies about $35 billion more in services from the United States over the next two years under the deal, although some US trade experts call it an unrealistic target.

Copper futures for March delivery gained $0.0125 to settle at $2.8735 a pound on the Comex metals division of New York Mercantile Exchange. Copper on the London Metal Exchange ended up 0.2...