SHFE copper, aluminum prices see another swing week

China's derivatives markets for major nonferrous metals exhibited a rise-then-fall trend over November 18-22, with the most-traded futures contracts for copper and aluminum on the Shanghai Futures Exchange (SHFE) ultimately recording declines for another week.

As of Friday, the SHFE's most-traded copper and aluminum contracts -- both for January delivery -- had dipped by 0.16% and 1.83% on week respectively to close the daytime session at Yuan 73,760/tonne ($10,177/t) and Yuan 20,420/t. This week began with a weaker U.S. dollar index, which created a supportive environment for global commodity markets, including SHFE metals. This contributed