Reference: ERW2509/01. APPOINTMENT OF A PANEL OF SERVICE PROVIDERS FOR THE SUPPLY, DELIVERY, APPLICATION OF BIOREMEDIATION / BIO-TREATMENT PRODUCTS AT ERWAT WATER CARE WORKS FOR A THIRTY SIX MONTH (36) FOR A PERIOD ON AN ‘ AS & WHEN REQUIRED’ BASIS Source: National Treasury eTenders OCDS release. Read the official documents for complete requirements and submission instructions.