Section 05 MINERAL PRODUCTS 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 14 Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, int 25 14 00 25 14 00 00 Commodity Code Description 25 14 00 00 00 Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks