Ferro holds a colorful portfolio of products. The specialty materials and chemicals producer makes various colorants, including ceramic glazes, pigments, and porcelain enamels. It also produces electronics, color and glass materials (such as conductive metals and pastes used in solar cells), and polymer and ceramic engineered materials. Its products are used in construction and by makers of appliances, autos, ceramic tile, electronics, and household furnishings. With 39 manufacturing plants worldwide, Ferro is a global leader in producing glass and porcelain enamels, ceramic glaze coatings, and conductive metal pastes. Billionaire investor Mario Gabelli owns about 12% of Ferro.