Cia Melhoramentos de Sao Paulo engages in publishing, bookstores, paper and pulp and forestry operations. It operates through the following segments: Publishing, High Performance Fibers, Management of Planted Forest and Real Estate Projects. The Publishing segment provides books, trainings and qualification for institutional market. The High Performance Fibers segment produces cellulose fibers for the manufacture of cardboard, premium board and tissue. The Management of Planted Forests segment engages in the planting and reforestation of trees. The Real Estate Projects segment manages the company's factories, offices, farms and other buildings. The company was founded by Antônio Proost Rodovalho on September 12, 1890 and is headquartered in Sao Paulo, Brazil.