| Chapter Code | Chapter Description |
|---|
| 810430 | RASPINGS, TURNINGS AND GRANULES, GRADED ACCORDING TO SIZE; POWDERS |
| 810520 | COBALT MATTES AND OTHER INTERMEDIATE PRODUCTS OF COBALT METALLURGY; UNWROUGHT COBALT; POWDERS |
| 810720 | UNWROUGHT CADMIUM; POWDERS |
| 810820 | UNWROUGHT TITANIUM; POWDERS |
| 810920 | UNWROGHT ZIRCONIUM; POWDERS |
| 811010 | UNWROUGHT ANTIMONY; POWDERS |
| 811212 | BERYLLIUM |
| 811221 | CHROMIUM |