1991.0093 RTZ MINING AND EXPLORATION DEPARTMENT BUSINESS PAPERS [1925-1965] Creator(s): Rio Tinto Zinc Corporation Ltd [-] RTZ Mining and Exploration Department files on Australia. Contains correspondence as well as technical reports and maps. ZC London: Records relating to the boards of NBHC Ltd., Southern Power Corporation P/L, Interstate Oil Ltd., IOL Petroleum Ltd. and NBHC Holdings Ltd. Papers are Australia related material found in London office of RTZ. They consist of a group of Imperial Smelting and Sulphide Corporation files concerning the operation of Cockle Creek Smelter, NSW. (Date range: 1949 to 1963.) Includes a small group of material originating with Zinc Corporation, Broken Hill: General Arrangement for equipment and reports on suitability of BHP Newcastle Steelworks for supply of materials for ZC, BH. Miscellaneous groups include isolated correspondence and reports 1929 to 1942. Largely relate to W.S. Robinson investigations of: Manapouri Hydro Electricity (1929), Risdon process for Burma concentrates, increasing Australia's zinc production. A CRA Ltd Collection. 12 Units (1.44m) Business, organisations