SANTIAGO, Nov 07, 2011 (Dow Jones) -- The value of Chile's copper exports in October surged to $3.51 billion, from $2.84 billion in the same month last year, the central bank said Monday.

Chile is the world's largest copper miner, producing a third of global supply. The Andean nation's mining industry, according to state copper commission Cochilco, represents 19% of the country's gross domestic product.

The nation's overall mining exports, including molybdenum, iron, silver, iodine and lithium, jumped to $4.0 billion in October from $3.12 billion the same month last year.

For January to October, the South American nation's copper exports were $36.72 billion, versus $31.56 billion in the same period last year.

The country's overall mining exports for January-October totaled $41.29 billion, compared with $34.72 billion for the same period last year.