Copper was the shining light in an otherwise tough week for local stocks, with the industrial metal surging almost 6%, testing 12-month highs in the process. Ironically, the advance coincided with iron ore making fresh 7-month lows, with the divergence between two of Australia’s most important exports certainly garnering plenty of attention. Iron ore has slipped over 30% since early January as Beijing fails to lift hopes around the health of their construction industry, leading to loss-making steel mills buying less ore and creating stockpiles at Chinese ports.