Alexander Mining PLC 'HyperLeach®' Patent Granted in US (6497X)

TIDMAXM

RNS Number : 6497X

Alexander Mining PLC

28 November 2017

28 November 2017

Alexander Mining plc

("Alexander" or the "Company")

'HyperLeach(R)' Patent Granted in US for a Method of Oxidative Leaching of Sulfide Ores and/or Concentrates

Alexander is pleased to report that it has received notification that its MetaLeach Limited ("MetaLeach") subsidiary has been granted a patent for a Method of Oxidative Leaching of Sulfide Ores and/or Concentrates in the United States, patent number 9,771,631. The patent has a standard term of 20 years from the effective date of 13 June 2010 (being the date of original filing).

The patent describes a method for leaching one or more target metals from a sulphide ore and/or concentrate containing such.

Martin Rosser, Chief Executive Officer, said: "The technology described in the patent has significant potential application in the US, both for sulphide deposits and for converting sulphide concentrates, the source of the majority of the world's base metals production and resources, through to metal at the mine site."

Notes

HyperLeach(R) Process

MetaLeach's HyperLeach(R) process, although less advanced in its commercialisation progress than AmmLeach(R), has very significant potential for application. HyperLeach(R) is a hydrometallurgical process which has been developed by MetaLeach for the extraction of metals, especially copper, zinc, nickel, cobalt, molybdenum and rhenium from sulphide ore deposits and concentrates.

The process utilises chlorine based chemistry to solubilise metals from ores under ambient temperature and pressure conditions. The HyperLeach(R) process can be operated as either heap leach or tank leach.

ENDS

For further information, please contact:

 
 Martin Rosser 
  Chief Executive 
  Mobile: [phone] 
  341 
 Alan Clegg 
  Non Executive Chairman 
  Mobile: [phone] 
 
   Alexander Mining plc 
   Tel: [phone] 
   Email: [e-mail] 
   Website: www.alexandermining.com 
 
 Northland Capital Partners 
  Limited 
  Matthew Johnson / Gerry 
  Beaney 
  [phone] 
  (Corporate Finance) 
  John Howes 
  (Corporate Broking) 
 
  Turner Pope Investments 
  (TPI) Ltd 
  Andy Thacker 
  [phone] 
 

This information is provided by RNS

The company news service from the London Stock Exchange

END

STRLLFVDLFLDFID

(END) Dow Jones Newswires

November 28, 2017 02:00 ET (07:00 GMT)