Machine shop services, namely, machining parts for others; welding services; metal fabrication and finishing services for others; custom fabrication and production of conveyors; custom fabrication and production of metal components for dust suppression and collection equipment, material handling equipment, pollution control equipment, piping and boilers

Construction project management services; general construction contracting; construction planning; machinery installation; installation, maintenance and repair of dust suppression and collection equipment; installation, maintenance and repair of material handling equipment; installation, maintenance and repair of pollution control equipment; installation, maintenance and repair of piping; installation, maintenance and repair of boilers