More than 865,000 bentwood chairs per year were produced in today's Czech Republic, Hungary, and Russia. Michael Thonet died in Vienna in 1871; his sons then took over the company. During the 1930s, Thonet was committed to the construction and technology of tubular steel furniture and quickly became the largest manufacturer in the world. World War II represented a harsh caesura: the plants in the eastern regions were disowned. The facility in Frankenberg (Germany), founded in 1889, has been the corporate headquarter and production site since then. Thonet is still a family-owned business and is managed today by the 5th generation. The company manufactures bentwood and tubular steel classics as well as new models, which are developed in cooperation with famous architects and designers.