NORTH AMERICAN MORNING BRIEF 30/04: LME base metals firm; PPS to buy 2,000 t of good western Ali; Gertler sues Glencore for $3bln over DRC copper-cobalt mining asset royalties

The latest metal markets news and price moves to start the North American day on Monday April 30.

Base metals prices on the London Metal Exchange were mixed during morning trading on Monday April 30, with aluminium and nickel continuing to dip from recent highs.Here's how base metals prices looked at 12:10 London time:Read our live futures report here.South Korea's Public Procurement Service has...