The mining consulting firm of Derry, Michener, Booth & Wahl may have dissolved its partnership practice toward the end of 1990, but its Mining House division of Toronto carries on. Charles Pitcher, a managing partner of Derry, Michener, Booth & Wahl, said he has retained the services of Derry, Michener’s associated key mining personnel for Mining House Inc., which offers mining, geological and technical services.
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