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, into blocks or slabs of a rectangular (including square) shape Commodity Code Description 25 14 00 Slate, rude roughly trimmed or merely cut,by sawing or otherwise,into blocks or slabs