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Changzhou Jinyuan Copper, invested in by JX Nippon Mining & Metals, said it plans to increase wire drawing capacity to 30,000 tonnes per year in 2012 from 18,000 tonnes. The announcement follows an expansion of its wirerod production facility which increased capacity to 300,000t/y in May 2010. The company currently manufactures copper wire to 1.13-3.5mm diameter from 8mm wirerod and sells all of its 1.13-2.6 millimetre range to the domestic market. The focus of the firm is supplying high quality products needed for winding wire used in vehicles. 60-70% of its domestic shipments are for winding wire, 20-25% are for power cable with the remainder comprised of communication cables. Changzhou Jinyuan Copper output 221,000t of 8mm copper wirerod in 2010 and 134,500t in H1 2011.