According to the NI43-101, the lead grade for the inferred sulphides is1.74% and its recovery is about 55%. The same zinc grade is 2.11% and its recovery is 45%. Current lead price is $1.21/lb and zinc price is $1.06. Using these grades, recoveries and prices, the base metal sales would be $47.72/tonne. At 5,000 tpd and 30 days per month,sales would be $7.16 million per month from the base metals.