The copper cash price saw a 4.3 percent increase on Sept. 17, 2012, reaching $8,400 per metric ton on the LME and making it the biggest mover for the day on our freely sharable price index. The 3-month price of copper jumped 4 percent on the LME to finish at $8,402 per metric ton.
The price of US copper producer grades 110 and 122 rose by 3.7 percent. Following three days of little change, the price of US copper producer grade 102 rose by 3.5 percent.
The Japanese copper cash price saw very little change for the fifth day in a row, dipping below $8,200 per metric ton.
Chinese copper closed mixed on Monday. Chinese copper wire finished the day up 0.6 percent. Chinese copper bar saw its price rise 0.5 percent.
The Chinese copper cash price also inched up 0.5 percent, and following a two-day rise, the price of Chinese bright copper scrap flattened at above $7,900.