Copper market’s biggest whale fuels speculation of a major shift
The world’s single biggest buyer of copper, State Grid Corp. of China, has slowed its purchases of copper wire this year.
![[Click here for an interactive chart of copper prices]](https://www.mining.com/wp-content/uploads/2011/02/copper-cathodes.png)
Japan’s output of rolled copper product fell 3.7 percent in March from a year earlier, its biggest fall in 17 months, after the March 11 earthquake devastated the northeast of the country and disrupted supply chains of automakers, which are big consumers of copper parts.
