CSR

Concrete additives and admixtures

Plastic pipes for use in gas and oil gathering, leachate collection, and in slurry, dredge, oil, water and sewage transmission, and irrigation and drainage systems

Non-metallic construction and building materials, namely, concrete and cement poles, slabs, beams, panels, bricks, blocks, arches, columns, channels, conduits, manholes, tees, barriers, vaults; concrete and cement pipes for use in leachate collection, and in slurry, dredge, oil, water and sewage transmission, irrigation and drainage system