London-listed Arc announces the start of an exploration drilling programme over the company’s PL135/2017 and PL162/2017 licences at its Virgo project within the highly prospective central structural corridor of the Kalahari Copper Belt (KCB) in Botswana. At the end of May, Arc reported on the results of an “encouraging” induced polarisation survey which confirmed potential drill targets along two distinct trends of high chargeability close to the interpreted redox contact.