Boards, sheets, panels, tiles and similar articles, not ornamented: - Articles of plaster or of compositions based on plaster. - Gypsum wallboard

1. 1. This Chapter does not cover: • (a) Goods of Chapter 25; • (b) Coated, impregnated or covered paper and paperboard of heading 48.10 or 48.11 (for example, paper and paperboard coated with mica powder or graphite, bituminized or asphalted paper and paperboard); • (c) Coated, impregnated or covered textile fabric of Chapter 56 or 59 (for example, fabric coated or covered with mica powder, bituminized or asphalted fabric); • (d) Articles of Chapter 71; • (e) Tools or parts of tools, of...

2. 2. In heading 68.02 the expression "worked monumental or building stone" applies not only to the varieties of stone referred to in heading 25.15 or 25.16 but also to all other natural stone (for example, quartzite, flint, dolomite and steatite) similarly worked; it does not, however, apply to slate.