The results of mineralogical and technological studies of PGM mineralization in zoned mafic - ultramafic complexes of the Ural-Alaskan type are given. Technological properties, grain size, and good opening of PGM ore in grain size class +80 mu m make it possible to concentrate ore using gravity methods with stadial comminution and between cycle separation of relatively large grains and nuggets into high-grade concentrates at the early stage of disintegration. The elaborated technological flow chart approved under semi-industrial conditions allows recovery of as much as 94% Pt. (C) 2013 Elsevier B.V. All rights reserved.