This industry comprises establishments primarily engaged in shaping, moulding, glazing and firing pottery, ceramics and plumbing fixtures. These products may be made of clay or other materials with similar properties. Establishments that fire and decorate white china (whiteware) for the trade are included.

This industry comprises establishments primarily engaged in shaping, moulding, baking, burning and hardening building materials and refractories. These products may be made of clay or other materials with similar properties.