The following is a daily review of base metals published on August 4 by Amalgamated Metal Trading Limited (AMT), a leading brokerage of the London Metal Exchange (LME). Copper: Once again, it hit a new contract high of $3,597, but it quickly fell back and went lower. Market trading volume is still shrinking, and the outlook for price movement is still uncertain. Aluminium: It briefly surged through 1,900 U.S. dollars on that day, but was unable to hold above this level due to traders' pressure on the market, and even failed to return to the level of 1890 U.S. dollars after midday. Lead: The performance was quite calm on that day. It was tested at the level of 870 US dollars at one time in the morning, but it failed to break through this position effectively. It closed near 860 USD. Zinc: In the morning, the price rose to 1,300 U.S. dollars and the volume rose to 1310 U.S. dollars. After midday, the high level was tested again, but the market ended down. Tin: It was significantly lower that day, lowering the level of $7150. Nickel: It was slightly softer that day but the overall performance was calm. Overall, it still shows a range of fluctuations.