Nigel Forrester, chairman and managing director at Mount Burgess Mining NL (ASX: MTB) runs Proactive through their two key deposits in Botswana - Kihabe and Nxuu.
Forrester says the Kihabe deposit is partially oxidised in the top portion and is about 2.4 kilometres long.
He adds the bottom section is sulphide so they'll have two different processes of treatment there.
''The Nxuu deposit which is seven kilometres to the east of Kihabe is totally oxidised ... has a maximum depth of 60 metres so we're looking at developing that one first of all''.
Forrester says they're keen to kick off a PFS around July this year.