The return of Chinese investors could lead to a sharp rise in the price of iron ore next week, given the likelihood of significantly lower Brazilian supply. However, the prices of other industrial metals may fall on Thursday if, as we expect, China’s January trade data point to weaker commodity import demand. We may also see a dip in oil imports as prices were rising last month and, in our view, the strength of imports recently has been more about opportunistic buying than strong underlying demand…