Kaufmann Naturbaustoffe is a company primarily engaged in the sale, consulting, and installation of ecological natural building materials for the construction and renovation of buildings. The core activities include: sale of natural building materials such as hemp, jute, sheep's wool, clay, and lime; consulting and planning for the use of natural building materials; installation and assembly of natural building materials, including insulation, plastering, and painting; offering workshops and courses for processing natural building materials; and providing special products such as clay wall and ceiling heating systems and renewable insulation materials. The company focuses on promoting healthy and sustainable living conditions through the use of ecological natural building materials.