Mactan Rock Industries, Inc. (MRII), manufaturere of water treatment chemicals and equipment, is a quality assured firm certified against ISO 9002 (UKAS Cert. No. Q13260 & BPS Cert. No. 98/0003) and ISO 14001 (SWISS Cert. No. 92057). In its 16 years of delivering quality products and services, MRII have played major role in the industries of power generation; wood processing, cement and steel industry; semi-conductors and electronics; shipping, drydocking ans ship repair facilities; food processor, canning, packing and bottling companies; furniture, handicraft and garments exporters; fishing, agriculture and mining, hotels resorts and recreations; and have contributed to the operational excellence of more than 250 compnaies and numerous households nationawide.