Mumbai, Sept. 18 -- COMEX Copper futures extend slide near a one-week low amid rising global Copper supplies as Anglo American and Chile's state-owned copper company Codelco announced that they have finalized an agreement to jointly operate copper mines in Chile, which have at least US$5 billion in value. Besides, geopolitical worries also escalated as Israel launched a sweeping ground offensive in Gaza City. COMEX Copper is currently down 0.30% at $4.61 per pound, after registering an over 1% fall in the previous session. Meanwhile, late-day volatility on Wall Street came following the Federal Reserve's widely expected announcement of its decision to lower interest rates by a quarter point. The Dow climbed 260.42 points or 0.6 percent to 4...