November 11, 2011
All members:
After investigation, we hereby decide to make the following adjustments on the charging rate of trading margin and price limit of futures contract of copper and aluminum:
I. From the closing date on November 15, 2011, the charging rate of trading margin of copper will be increased by 1% (also applicable to the trading margin of futures contract at different positions); the charging rate of trading margin of aluminum will be increased from 6% to 7%.
II. From November 16, 2011 the price limit of aluminum will be increased from 4% to 5%.
It is hereby notified as above.