A question from Yahoo! Answers:
Who are the mining companies for nickel ?
2005 figures for five largest producers stand thus (numbers are percentages of world production):
Norilsk Nickel (Russia) 18.7%
Inco (Canada) 16.9%
Falconbridge (Canada) 8.8%
Jinchuan (China) 7.0%
BHP Billiton (Australia) 6.2%