Catalyst Copper Corp. CATXF

RE: RE: RE: RE: RE: RE: OR GETTIN U TO FOLLOW HIS

[losertoo]

from PEA:

The PEA assumes the installation of a roaster to effectively treat the copper concentrates thereby reducing arsenic levels in the concentrates to acceptable levels for any smelter (0.1 to 0.3% arsenic, well below the 0.5% threshold for arsenic content in copper concentrates). The arsenic content in the copper concentrate remains a concern; especially in the East Hill sulphides where the arsenic is present as a copper-arsenic sulphosalt (tennantite). Metallurgical testwork carried out to date is preliminary in nature and the Company recognizes further work is required including variability testwork to investigate varying metallurgical response associated with the deposit's various lithological and alteration types. Preliminary copper concentrate testing has shown roasting as an effective method of reducing arsenic levels, nevertheless the Company is committed to investigating other potential downstream treatment options for the concentrate to remove or reduce arsenic levels.