all activities related to the acquisition, preparation and transformation of wood-based combustible materials for their commercialization; purchase, sale and distribution of wood-based combustible materials; purchase, sale, distribution and installation of heating appliances, chimneys and other constructions using wood-based combustible materials; rental and leasing of forestry equipment, machinery and tools; acquisition and sale of real estate and agricultural properties in Switzerland and abroad, excluding operations prohibited by the Federal Law of 16 December 1983 on the acquisition of real estate by foreign persons (LFAIE) (for full purpose, see articles of association).