My Understanding of JLP Copper1 Dec 2023 06:56
When JLP entered Zambia the company purchased North of 300 million tons of copper sulphide waste tails, some of which contains recoverable cobalt in the form of cobalt hydroxide. JLP established Roan in Zambia as a large centralised copper concentrator using sulphuric acid to leach out copper sulphide from part of this waste mountain , and Roan was expected to produce 10000 tons copper sulphide concentrate per year.
Todate Roan has been an expensive failure. Sulphuric acid is expensive, difficult to use, dangerous and destroys the environment. Result the company gets a poor ESG rating. Also copper sulphide tails which have had one historic acid leach are not that responsive to a second acid leaching .
However in Aussie (Perth) it was realised that the use of cyanide , sulphuric acid etc, by the mining industry was totally detrimental to environment. Thus research was conducted into alternative leaching agents, of which Glycine proved successful. Glycine is readily available, cheap to use and aids the environment. This Aussie process was acquiured by the Czeck company Draslovaka for $ 30 m. The company is now offering Gly - leach to the mining industry. It is now expected that Gly - leach will successfully replace sulphuric acid at Roan as the leaching agent, saving LC from falling off the cliff.
In the interim JLP needs a cash flow from copper in Zambia. When one discovers a copper ore body, typically the outmost layer is weathered down to low grade copper oxide , with the massif of the ore body high grade copper sulphide. Historically when mining for Copper in Zambia the outmost layer of low grade copper oxide was abandoned as rock, uneconomic for processing, with a copper concentration of 1.5 = 2.5% . Now JLP drawing on its experience of recovering chrome (and PGMs) from waste mine material in S.A. has come up with a small concentrator, cabable of producing a copper oxide concentrate of + 5% copper oxide (proviso that starting concentration is at least 1.5% copper oxide ). Sable can process this coper oxide concentrate to copper cathode. This small concentrator costs about $3 m and one such enables Sable to produce 3000 tons copper per year. The first of these small concentrators is being installed in the front end of Roan, with a second one going in at project M (location a LC secret). I assume for logistical reasons project M is a JV close to Sable.
The above situations are in reality a point for LC such that the proof of the pudding is in the eating. For share holders recently with LC it is like the " Charge of the Light Brigade " membership.