BHP By mk85024 Jan 1, 1883 The Broken Hill Minning Company is established Jan 1, 1885 The Brocken Hill Minning Company is disolved and incorperated into The Brocken Hill Proprietary Limited BHP begins mining silver, lead and zinc deposits Jan 1, 1890 Smelting comences at Port Pirie, South Australia Jan 1, 1891 Firsy export of lead to china by BHP Mar 3, 1899 Leases are obtained over Iron Knob and Iron Baron iron-ore deposits in South Australia Mar 3, 1900 BHP commences iron-ore mining at Iron Knob Mar 3, 1915 BHP begins steelwroks operation at Newcastle, NSW, on 2 June