Market Report: Miners enjoy copper-bottomed gains.

Copper producers, including Antofagasta, up 7.6% at 762.5p, and Kazakhmys, up 5.8% at 833.5p, rallied on 30 Jul 2009, as investors piled in on the prospect of another spike in the metal's price. The bulls bought in after Nomura weighed in, challenging the view that the recent copper price rally was based on exceptionally high, speculative restocking in China. The advance has been underpinned by fundamentals, the broker said, "with surging refined imports to China explained by …