EHA Engineering Ltd is a group of Consulting Engineers in the fields of hydrometallurgy and mineral processing. Experience gained on many projects include the processing of ores and materials for the recovery of arsenic, beryllium, bismuth, cobalt, copper, diamonds, gold, graphite, lead, magnesium, molybdenum, nickel, platinum/palladium, rare earths, rhenium, silver, strontium, tungsten, uranium, vanadium, and zinc.
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EHA Engineering Ltd.
Mailing Address: P.O. Box 2711 Stn B
Tel: (416) 460-3048
a.hayden@EHAengineering.com