China's copper prices fluctuated at high levels during the reporting period (August 31- September 4), with the overall price center edging slightly higher. Macro factors had mixed effects on copper prices; in particular, uncertainty over expectations for the Fed's future monetary policy amid key data releases and comments from Fed officials led to frequent price swings. From a fundamental perspective, tight raw material and spot supply kept inventory on a downward trend, providing support to copper prices and spot premiums.