REGIONNAME COMPANY NAME/ADDRESSACCREDITATION NO.VALIDITY OF ACCREDITATIONFIELD OF EXPERTISE
REGION IVBBAUTISTA, EDICEL R.PETRON CORPORATION - PALAWAN DEPOT1033-200630-E001630-Jun-20MANUFACTURING
REGION IVBDE GUIA, FERDINAND T. CORAL BAY NICKEL CORPORATION1033-150216-E000516-Feb-18 
REGION IVBERA, CHRISTIAN D. CORAL BAY NICKEL CORPORATION1033-140912-E000312-Sep-17MINING
REGION IVBFABIAN, RALPH ADRIAN C.BERONG NICKEL CORPORATION1033-140919-E001019-Sep-17MINING
REGION IVBGASCON, RODOLFO B.NEW JDT MAINTENANCE SERVICES TRADING & CONSTRUCTION 1033-150515-E001114-May-18MINING
REGION IVBPARAISO, DIOSDADO R. PCORAL BAY NICKEL CORPORATION1033-150413-E000612-Apr-18MINING
REGION IVBPRIVADO, SONNY N. ORIENTAL MINDORO ELECTRIC COOPERATIVE-SAN JOSE, OCCIDENTAL MINDORO1033-200306-E00146-Mar-20ELECTRIC UTILITY SERVICE