Copper prices eye key support to resume downtrend

Copper prices are recoiling from confluent resistance at 4.4620. This is marked by the underside of two recently-broken uptrend supports, the upper bound of a seven-month price congestion zone, and a downward-sloping trendline emanating from the May 10 high. A daily close under swing-low support at 4.2060 may act to confirm downtrend resumption, initially setting the stage for a test below the 4.00 figure.