Transnet National Ports Authority (tnpa) has published for a service provider to provide the services of an approved inspection authority (aia) to conduct sample testing on the xb wagons fleet in line with works instruction bbh1083 rev 07 for the wagon business in bloemfontein on an "as and when" required basis for a period of four (4) years., bloemfontein. Bidders can get complete Tender details and download the document.