| Rank | Country | Production (MT) | Share % | Notes |
|---|---|---|---|---|
| 1 | Russia | 3,300,000 | 17.8 | |
| 1 | Russia | 4,255,000 | 18.5 | |
| 2 | Canada | 2,643,058 | 14.3 | |
| 2 | Canada | 2,944,000 | 12.8 | |
| 3 | Poland | 1,503,440 | 8.1 | |
| 3 | Australia | 2,116,000 | 9.2 | |
| 4 | Finland | 1,019,720 | 5.5 | |
| 4 | Poland | 1,633,000 | 7.1 | |
| 5 | Brazil | 907,046 | 4.9 |