BHP bets billions on Chile mines to face global copper crunch
BHP detailed to investors this week plans to spend $10.7 billion to $14.7 billion within about 10 years.
* Copper under $6,800 a tonne represents value -trader
* China local copper premium hits 10-month high
SINGAPORE, April 23 (Reuters) – London copper fell to a fresh year-and-a-half low on Tuesday…