TAIPEI (Reuters) - UMC, the world's No.2 contract chipmaker, said on Tuesday that its December sales fell 3.8 percent from a year earlier.

United Microelectronics Corp (UMC) had sales of T$7.8 billion ($269 million) last month, compared with T$8.1 billion in December last year and T$9 billion in the previous month, the company said in a statement to the Taiwan stock exchange.

UMC did not give further details.

For a table on the company's website, see http://www.umc.com/English/investors/a.asp

(Reporting by Roger Tung and Clare Jim; Editing by Chris Gallagher)