Aim-listed Arc Minerals on Tuesday reported additional reverse circulation and diamond drill assay results from the company’s 11 000 m drilling programme at the Kalaba prospect, which is part of its Zamsort copper/cobalt project, in Zambia. The results found that mineralisation continues to be intersected in all holes drilled to date, with good thickness. Four new holes, with elevated copper grades ranging between 0.50% and 1% have been discovered, and the disseminated cobalt mineralisation continues to be intersected in the mineralised zones.