MIM was one of three companies founded in 1924 to develop the minerals discovered by Miles, but production did not begin until May 1931. The other two companies were Mount Isa Silver Lead Proprietary and Mount Isa South.
MIM was among three companies founded in 1924 to extract minerals discovered by Miles, with actual production commencing in May 1931. The other two entities were Mount Isa Silver Lead Proprietary and Mount Isa South.