Chemicals used in industry; unprocessed plastics; other substances and chemicals and petrochemicals, namely, ethylene, polyethylene, copolymers of ethylene and other olefins, and other ethylene-derivatives

Plastics and plastics materials, namely, plastics in the form of powder, granules, pellets, sheets, films, blocks, rods, bottles, drums and tubes; plastics in extruded form for use in further manufacture; packing and insulating materials; stopping materials, namely, plastics in the form of powder, granules, pellets, sheets, films, blocks, rods, bottles, drums and tubes; flexible pipes, not of metal

Construction and maintenance of plants and buildings; advisory services for the building, maintenance and repair of plants

Treatment of a variety of materials in the nature of chemicals by dehydration; preparation and improvement of a variety of materials, namely, by dehydration