Fundamentals: US Department of Commerce data released on Wednesday, due to economic activity generally picked up, the United States in the second quarter GDP growth of 4% annualized initial value, the first quarter is revised to shrink 2.1%. The previous market expected US second-quarter GDP growth rate of 3.0%. Driven by economic data than expected, overnight London metal prices rebounded. The industry believes that in the supply of contraction, driven by better demand, zinc and aluminum and other basic metals, as well as nickel, molybdenum and other rare metals boom rebound fundamentals are more solid. Operating recommendations: 09 copper bullish trend, short-term sideways shock consolidation state, the midday has been dropping to 50400 support point, the day the operator can be in accordance with this point for the defense, the top multi-based.