PURCHASE OF PEFC CERTIFIED LOGS, SAWMILLING AND SALES OF PEFC CERTIFIED SAWN TIMBER AND SAWMILL WASTE (SLABS, OFFCUTS, BARK AND SAWDUST) 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