CS Project Resource Implications28 Aug 2018 15:38
An estimated Perlite Resource for the CS Project of the order of c4Mt, even with the possibility of further as yet unquantified resource to the NE of the Main Zone, may be much less than anticipated by some. However, in the context of total US mine production of 520,000 metric tons in 2017 (US Geol Survey estimate) and total Nevada State production of 19,884 tons in 2016 (latest available figure) the CS Project Resource is a significant number.
The Nevada State total comes from 2 opencast pits, The Popcorn Mine near Fallon in Churchill County, owned and operated by E. P. Minerals which uses its total production, 17,476 tons in 2016, for filter products, and the Tenacity Mine near Caliente in Lincoln County, owned and operated by Wilkin Mining and producing 2408 tons in 2016. There are only 7 perlite mines in the 5 SW US states, of Nevada, California, Utah, Arizona and New Mexico, the latter being the leading producer of crude ore (ref USGS).
The signing of two MOU’s, both with buyers and processors of raw perlite, totalling minimum offtake tonnages in excess of that targeted for the start-up of perlite production (including the NewPerl Project in one MOU), is a significant endorsement of the potential for successful development of the perlite component of the CS Project.
With regard to the Pozzolan component and potential Resource the future is less clear. Natural source material with pozzolanic properties occurs in great variety and quantity in many parts of the SW US states. A single example will serve to underline the competition which Sunrise faces in turning this aspect of the CS Project into a viable economic concern.
Geofortis Pozzolan, a subsidiary of the privately owned, Moraga, California-based Geofortis holding company, has an 18 acre $20M pozzolan processing plant currently under construction at Reno in Nevada. This will process Lassenite, a naturally occurring volcanic ash/diatomite composite, sourced from its wholly owned 150Mt mine just over the border in California, and most importantly 20 minutes by rail and road from the Reno Plant. The processing plant will produce 600,000 tons of pozzolanic products per year for the California, Utah and Nevada markets. Geofortis also has an undisclosed 2500 acre pozzolanic tephra and tuff prospect in Utah destined for cementitious material production when market conditions are favourable. Compare that 600,000 ton per annum production figure with the CS Project 2017 Concept Study Report which predicted a potential market for pozzolan in Nevada in the vicinity of 250,000 tons per year (page 16), and which estimated a demand from Nevada, California and Utah for up to 110,000 tons per year from the SC deposit in the then current market (page 19).
To be continued