23INDUSTRI PRODUK MINERAL NONLOGAM

The processing of raw materials into finished goods related to a single element of a pure mineral. This main group includes the manufacture of glass and glass products, such as sheet glass, hollow glass, fiberglass, other glass products, ceramic products, tiles, fired clay products, as well as cement, concrete, and plaster, from raw materials to finished goods. This main group also includes the cutting and grinding of stone, as well as the processing of other mineral products included in this main group. This main group also includes the manufacture of products from composite materials with the main ingredients being glass and non-metallic minerals, such as sand, gravel, stone, or clay.