Striking miners at BHP's Spence mine dig in heelsNov 20, 2009 | News The workers at the Chilean mine, who accuse BHP Billiton of stalling contract talks, threaten to invade installations and block roads. See http://www.minesandcommunities.org/article.php?a=9636.Related posts BHP Billiton's Spence on strike - Chile BHP's 'tea money' missing in Cambodia Goldcorp's Guatemala mine 'exploiting' locals