We have also a CHROMITE SAND of 52. 07% assay grade. We provide minimum order 1, 000 ton. Ready for shipment immediately. FOB Philippines. Chromite is a black sandy odorless material which is free flowing when dry. It is insoluble in water and any common organic solvents. Fastem Construction Inc. is a PCAB Licensed company engaged in General Engineering and General Building Construction. Our primary purpose is to provide excellent construction services thru efficient and state-of-the-art systems and methodologies. With highly qualified and experienced Engineers, Managers and Consultants, we are confident to deliver, reliable and efficient products & amp; services.