Potteries

Footnote

This classification applies to the manufacture of decorative or architectural clay or terra cotta products, including but not limited to planters, ceramic tile, electrical porcelain, china or tableware and decorative floor, wall or fireplace tile. This classification also applies to the manufacture of foundry sand cores that are sold commercially.

The manufacture of bricks, fireproofing tile, refractory panels or similar clay building products shall be classified as 4041, Brick or Clay Building Products Mfg.

Mining, quarrying or clay digging shall be separately classified.