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In page Rosebery, Tasmania:

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The Rosebery mines passed into the hands of the Mount Lyell Mining and Railway company in 1916, and the mines were eventually merged with the Electrolytic Zinc Company of Australasia (EZ), who had discovered an effective method for the extraction of zinc. In 1926, construction of a processing mill at Rosebery began, and in 1931, an aerial ropeway to transport ore from the Hercules Mine near Williamsford was completed. Due to the Great Depression, the Rosebery Mill was not completed until 1936. The Rosebery Mine has operated continuously since then, with 75 year celebrations held during February, 2011. The mine is currently operated by Minerals and Metals Group (MMG), producing zinc, lead, copper, silver and gold. Previous mine owners included Pasminco and Zinifex.