North American Product Classification System (NAPCS) Canada 2022 Version 1.0
- 291 - Non-metallic mineral products
- 29114 - Non-metallic mineral products, n.e.c.
- 291144 - Other non-metallic mineral products
- 2911441 - Treated minerals and earths
- 2911442 - Other non-metallic mineral products, n.e.c.
- Date modified: