INVITATION TO BID: SUPPLY AND DELIVERY OF DISTRIBUTION TRANSFORMERS FOR TRANSFORMER LOAD MANAGEMENT USE (BCN 04-2021), SUPPLY AND DELIVERY OF KWH-METERS UNDER MAGNA CARTA (BCN 05-2021), SUPPLY AND DELIVERY OF TRANSFORMER ACCESSORIES FOR THE REPLACEMENT OF DEFECTIVE TRANSFORMERS FOR AREA 1-4 (BCN 08-2021), SUPPLY AND DELIVERY OF 3,000 UNITS OF CLASS 200 KWH-METER SINGLE PHASE (BCN 09-2021), SUPPLY AND DELIVERY OF ONE (1) UNIT BRAND NEW 6-WHEELERS TRUCK, 4 X 2, WITH 5 TONS TELESCOPIC CRANE (BCN 10-2021)