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De Beers diamond mines win industry awards for safety record
ONTARIO'S FIRST AND ONLY DIAMOND MINE REACHES END OF PRODUCTION
Ontario's First Diamond Mine - Canadian Mining Journal
History – De Beers Canada
De Beers moves Canadian HQ from Toronto to Calgary
De Beers Group receives mine reclamation award for diamond mine in
DeBeers says there will be few signs of closed northern Ontario
Canada – De Beers Group
Rebounding from a rocky year: operating mines in the Northwest