PURCHASE OF CONTROLLED SOURCES LOGS, PEFC CERTIFIED AND CONTROLLED SOURCES SAWMILL WASTE (SAW DUST, OFF-CUT, BULK, WOOD SLAB) AND WOOD PELLETS, MANUFACTURE AND SALES OF PEFC CERTIFIED AND CONTROLLED SOURCES WOOD PELLETS, COMPRESS WOODEN BLOCKS AND SAWDUST BLOCKS UNDER SECTION 6.2, PHYSICAL SEPARATION METHOD AND IMPLEMENTED BASED ON APPENDIX 1 PEFC DUE DILIGENCE SYSTEM (DDS) FOR THE AVOIDANCE OF MATERIAL FROM CONTROVERSIAL SOURCES OF THE CHAIN OF CUSTODY STANDARD.