Friday (May 1) international copper prices rose to the highest in December, due to seasonal strong demand, and is expected to be the main metal consumer China will further introduce economic stimulus measures.

London Metal Exchange (LME) three-month lead hit $ 2,153 in September to the highest, but investors said the rally may be stagnant, the wave of the stock market is mainly driven by the stock market crash, but inventory is expected to rise.

Lead for three months ended at $ 2,112 and was last seen at $ 2,110 on Thursday.

Three-month copper rose to $ 6,392 in December, the highest since the closing was not traded, buying the last reported $ 6,399.5 on Thursday, the final buying reported $ 6,335.

This week copper rose more than 6%, is bound to record the end of 2011 to the largest weekly increase.

Said BNP Paribas metal strategist Stephen Briggs. He believes that copper inventories in the third quarter will once again increase. "I would advise rallies to rise to $ 6,500 after copper expands."

China's April Manufacturing Purchasing Managers' Index (PMI) was flat last month, and for two consecutive months at the top of the line, the production index continued to pick up orders but poor performance, demand is still insufficient; by the construction industry growth rate high place Slowdown, the official non-manufacturing business activity index fell slightly.

Copper demand is also expected to increase copper spot copper rose over the three-month copper premium of about 27 US dollars per ton, hit 30 US dollars on Thursday to the end of March the highest last week for the discount 9 US dollars.

To $ 1,932 in December, last seen at $ 1,909 and last Thursday at $ 1,924.50.

Tin closed down $ 25 at $ 16,000. Zinc fell $ 2 to $ 2,343.

Three-month nickel also climbed to a high of $ 13,965 in December, but ended up 1.3% lower at $ 13,750.