OCI

Chemicals used in industry in particular chemical preparations for the treatment of cement; chemicals used in agriculture, horticulture and forestry, in particular fertilizers; manures

building construction; construction of steel structures; construction of cement structure; piling and foundation works; repair of power plants, oil and petrol plants, petrochemical plants, road and transportation infrastructure, water and wastewater infrastructure, industrial buildings and commercial buildings; installation services, namely, installation of irrigation, electrical, lighting, fire alarm, detection and suppression, transportation and traffic equipment, heating, ventilating and air conditioning, security systems for power plants, oil and petrol plants, petrochemical plants, road and transportation infrastructure, water and wastewater infrastructure, industrial buildings and commercial buildings