China Steel Global Trading Corp., which is responsible for the overseas product sales of CSC, Chung Hung Steel, and CS Aluminum Corp. improved its sales volumes in market recovery, but due to a decrease in reinvestment income, its profitability in 2013 was reduced. 46 2013 Corporate Sustainability Report (3) Industrial material businesses: CS Aluminum, due to the market downturn, experienced a dramatic price drop that was greater than cost reduction resulting in a reduced gross profit of products.