
engineering and construction of mining and processing plants esfc, an international company, offers a full range of engineering and financial services related to the construction of mining and processing plants, supplying equipment from leading world manufacturers to most countries. we will send you a list of implemented projects upon your request. areas of activity,project upgrades to mineral processing plant,upgrades to mineral processing plant. after completing a prefeasibility study to determine the viability of making modifications to its processing plant to produce concentrates of copper, lead, and zinc, ouray silver mines (osm) sought to complete the detailed engineering and construction associated with the new process arrangement.