Copper rose on Thursday, touching a record high, with a weaker dollar and projections of tight supplies keeping the industrial metal on track to finish 2010 with a rise of almost 30 percent. US copper futures' most active contract, March, finished up 1.2 percent, or 5.10 cents, at $4.3625 on the COMEX metals division of the New York Mercantile Exchange. It hit an all-time high of $4.3790 in overnight trading. The higher finish in copper came on the back of a weaker dollar and encouraging US economic data.