. . . "1981-08-28Z"^^ . "1981Z"^^ . . . . . . "Sons of Gwalia was a Western Australian mining company that mined gold, tantalum, spodumene, lithium and tin.Sons of Gwalia was Australia's third-largest gold producer and also controlled more than half the world's production of tantalum, before entering administration in August 2004 following a financial collapse."@en . "Sons of Gwalia Limited"@en . "Administration"@en .