TRADING AND PURCHASE OF PEFC CERTIFIED SAWMILL WASTE (SLABS, OFF-CUTS, WOOD STRIP, WOOD CHIP), PROCESSING AND SALES OF PEFC CERTIFIED WOOD CHIP 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, AND APPENDIX 2 IMPLEMENTATION OF THE CHAIN OF CUSTODY STANDARD BY MULTISITE ORGANISATIONS OF THE CHAIN OF CUSTODY STANDARD