Installation, maintenance, repair and replacement of filter medias; Consultation services in the field of the installation, maintenance, repair and replacement of water filtration equipment and filter medias; Consulting services for the construction of water treatment and purification plants, solid waste treatment plants, and other municipal, commercial, industrial and residential infrastructure facilities

Chemicals used in industry; Chemicals for use in treatment of water, waste water, and effluent; Chemicals for use in purification of water, waste water, and effluent; Carbon, activated carbon, granulated carbon, and bone charcoal, all for use as filter media, adsorbents, or absorbents; Carbon for filters; Chemical adsorbent media for purification of water, waste water, and effluent; Chemical preparations to treat water, waste water, and effluent; Chemical preparations for use in industry

Water filtration units for the treatment and purification of water, waste water, and effluent; Water filtration units containing adsorption material for the purification of water, waste water, and effluent; Water purification plants for purifying water, waste water, and effluent using adsorption material; Water filtration units containing adsorption material for the treatment of water, waste water, and effluent; Water treatment plants for treating water, waste water, and effluent using adsorp...