New River Trading Company supplies polypropylene reinforcing fiber to the concrete construction industry. From standard packaging of mixer ready bags to custom packaging for a customer's specific needs, NRTC can supply the construction fiber needs for any job and for ongoing usage by the ready-mix supplier. Technical support is provided by one of our principals, who was a member of the Williams Brothers of Atlanta family. (Williams Bros. operated 30 plants and 600 trucks prior to it sale to Blue Circle.)