| 72021100 | Ferro-manganese: Containing by weight more than 2% of carbon |
| 72021900 | Ferro-manganese: Other |
| 72022100 | Ferro-silicon: Containing by weight more than 55% of silicon |
| 72022900 | Ferro-silicon: Other |
| 72023000 | Ferro-silicon: Ferro-silico-manganese |
| 72024100 | Ferro-chromium: Containing by weight more than 4% of carbon |
| 72024900 | Ferro-chromium: Other |
| 72025000 | Ferro-chromium: Ferro-silico-chromium |
| 72026000 | Ferro-chromium: Ferro-nickel |
| 72027000 | Ferro-chromium: Ferro-molybdenum |
| 72028000 | Ferro-chromium: Ferro tungsten and ferro-silico-tungsten |
| 72029100 | Other: Ferro-titanium and Ferro-silico-titanium |
| 72029200 | Other: Ferro-vanadium |
| 72029300 | Other: Ferro-niobium |
| 72029911 | Ferro-phosphorus, Ferro-selenium, Ferro-cobalt, Ferro-columbium, Ferro-zirconium, Ferro- tantalum: Ferro-phosphorus |
| 72029912 | Ferro-phosphorus, Ferro-selenium, Ferro-cobalt, Ferro-columbium, Ferro-zirconium, Ferro- tantalum: Ferro-selenium |
| 72029913 | Ferro-phosphorus, Ferro-selenium, Ferro-cobalt, Ferro-columbium, Ferro-zirconium, Ferro- tantalum: Ferro-cobalt |
| 72029914 | Ferro-phosphorus, Ferro-selenium, Ferro-cobalt, Ferro-columbium, Ferro-zirconium, Ferro- tantalum: Ferro-columbium |
| 72029915 | Ferro-phosphorus, Ferro-selenium, Ferro-cobalt, Ferro-columbium, Ferro-zirconium, Ferro- tantalum: Ferro-zirconium |
| 72029916 | Ferro-phosphorus, Ferro-selenium, Ferro-cobalt, Ferro-columbium, Ferro-zirconium, Ferro- tantalum: Ferro-tantalum |
| 72029921 | Ferro-silico-zirconium, Ferro-silico-magnesium: Ferro-silico-zirconium |
| 72029922 | Ferro-silico-zirconium, Ferro-silico-magnesium: Ferro-silico-magnesium |
| 72029931 | Ferro-boron, Charge-chrome: Ferro-boron |
| 72029932 | Ferro-boron, Charge-chrome: Charge-chrome |
| 72029990 | Ferro-boron, Charge-chrome: Other |