BAUMA 2022 International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines, Construction Vehicles and Construction Equipment Bauma is the largest and arguably the most important trade fair in the world in the field of construction. It offers a complete international range of construction machinery, construction vehicles, construction equipment and mining equipment. The bauma is a hub for international business and an information and contact fair, where construction experts from all over the world gather information about the latest technology.