WEST African prospector Mano UK will today announce that it has raised more than £2m to support its joint venture with Golden Star to produce diamonds in Sierra Leone and gold in Liberia. In another sign of the latest gold rush, demand was so heavy that the fundraising had to be closed early. Six months ago the Aim-quoted group struggled to raise £600,000. Mano, tipped on these pages yesterday at 6p, closed at 6.87p.