Canadian Zinc Corp. has reported preliminary results from a feasibility study of its underground Prairie Creek zinc-lead-silver project in the Northwest Territories, Canada. The feasibility study expands on a preliminary feasibility study (PFS) completed in 2016 and confirms that the Prairie Creek project can support a significant increase in the mining rate and mill throughput, enabling production of higher quantities of zinc, lead and silver at lower operating costs than those presented in the PFS.