Robert Josef Petzenhauser

Omya Oy produces industrial minerals and distributes specialty chemicals. It offers calcium carbonate fillers and coating pigments, chemical raw materials, intermediates, and specialty products. Its product solutions are used in the construction, printing, technical polymers, packaging, food, personal and home care, pharmaceuticals, agriculture, forestry, water, and energy industry. The company was founded on December 30, 1915 and is headquartered in Helsinki, Finland.

Omya Hustadmarmor AS manufactures and supplies inorganic chemical products and minerals. The firm engages in the production and supply of agricultural products. It offers industrial inorganic materials, primarily calcium carbonate for paper production, water treatment, and the agricultural industry. The company was founded on April 5, 1978 and is headquartered in Elnesvagen, Norway.