Planning, installation, and servicing of heating systems, sanitary installations, ventilation technology, and refrigeration technology, as well as trading in corresponding products, materials, and spare parts. Can provide services in the area of building supervision and maintenance of buildings and systems, establish branches and subsidiaries domestically and abroad, and participate in other companies domestically and abroad, as well as conduct all business that is directly or indirectly related to its purpose, manage real estate domestically and abroad, also provide financing for its own or third-party account, and provide securities for liabilities of affiliated companies.