The World Nuclear Association (http://www.world-nuclear.org/info/inf23.html) says that the major production is in Kazakhstan but that as you assert if you add Aus+Can production together it does beat the Kazakh production marginally. But I can still say based on those figures that in fact the majority is produced in Kazakhstan and Namibia - I'm afraid I have no info about their safety record but do know (see these links) that they use strong acid leeching which has been considered harmful everywhere else (this could be due to specific geology, or not).
They also say that "Conventional underground & open pit [accounts for] 57%" of global Uranium production.
Moreover the analysis in the OP article appears to be an historic one though whilst wide scale use of ISL (aka ISR) leeching appears to be relatively new.
Further pages from WNA (eg http://www.world-nuclear.org/info/inf27.html which I've not corroborated) - says that Australia didn't use ISL (for Uranium) until 2000 in Beverley (I've seen other refs say it was trialled in Aus in 1997). So presumably before that they used heap leeching or regular mining methods?
Quoting that second WNA link:
"In 2009, a total of 18,262 tU was produced by ISL, this being 13,473 tU in Kazakhstan, 2429 tU in Uzbekistan, 1217 tU in USA, 583 tU in Australia and 560 tU in Russia. This was 36% of world total production, a share which has risen steadily from 16% in 2000."
They also say that "Conventional underground & open pit [accounts for] 57%" of global Uranium production.
Moreover the analysis in the OP article appears to be an historic one though whilst wide scale use of ISL (aka ISR) leeching appears to be relatively new.
Further pages from WNA (eg http://www.world-nuclear.org/info/inf27.html which I've not corroborated) - says that Australia didn't use ISL (for Uranium) until 2000 in Beverley (I've seen other refs say it was trialled in Aus in 1997). So presumably before that they used heap leeching or regular mining methods?
Quoting that second WNA link:
"In 2009, a total of 18,262 tU was produced by ISL, this being 13,473 tU in Kazakhstan, 2429 tU in Uzbekistan, 1217 tU in USA, 583 tU in Australia and 560 tU in Russia. This was 36% of world total production, a share which has risen steadily from 16% in 2000."
WRT my query elsewhere about extracted ore, the BHP BIlliton facility (2 fatalities since opening; largest deposit known of apparently) extracted "933,000 tons of uranium oxide concentrate" in one quarter of 2007 (http://uk.reuters.com/article/2007/12/12/us-bhpbilliton-olym...). Forecasts for BHP Billiton (http://antinuclear.net/2010/11/17/bhp-shareholder-opposes-da... - note apparent bias of source).
Like I've said elsewhere this is a complex field, one that appears to be being misrepresented.
--
Edit: other notes 1 - US production was 98% ISL in 1993, http://books.google.com/books?id=pXbdrH6_AVEC&lpg=PR28&#...