Read here for an updated price and inventory chart fromThe Copper Journal.

Copper posted its eighth consecutive increase during August, and the largest monthly gain since May 2007, despite rising inventories. Spot copper averaged $2.8106 during August, up 42.5¢, or 17.8% over $2.3855 in July, but was down 62.6¢, or 18.2% from $3.4364 last August.

The Year to date average now stands at $2.0417, off $1.61, or 44.1% from $3.6502 during the first eight months of 2008. Inventories held in Comex and LME warehouses rose 17,272 MT, or 5.2% to 348,220 MT, and are up 169,955 MT, or 95.3% from 178,265 MT in stock last August.

See below for a chart covering 1988 through August 2009.