The copper market has posted a large rally during early Monday US trading, with some traders pointing to an improving macro economic outlook in China and North America. Other traders feel that copper may be garnering some support from a favorable private survey of Chinese Purchasing Managers, a weaker Dollar and an improving Asian demand outlook. Chinese September copper concentrate imports declined 17% from year ago levels. However, Chinese refined copper imports for September posted a rise of 14% during that same period, which may offset the negative impact of the concentrate data. The Japanese Trade surplus during September was 300.4 billion Yen, higher than expectations and may signal stronger Japanese industrial copper demand through the rest of 2011. LME Copper Stocks were 444,275 tons down 3,525 tons.