Copper prices held above seven-week lows on Wednesday as a weaker dollar offered support while zinc dropped to its weakest in two months after a surge in inventories. Three-month copper CMCU3 on the London Metal Exchange (LME) was down 0.1% at $8 192 per metric ton in official open-outcry trading, bouncing after retesting the seven-week low of $8 148.50 touched in the previous session.
