Altri SGPS SA engages in the production of cellulosic fibers and sustainable forest management. It produces cellulosic fibers for various applications, from printing and writing paper, to domestic papers and the textile sector. The firm is also a reference player in the forest-based renewable energy sector, since its forestry strategy is based on the full use of all components made available by the forest. The company was founded by Paulo Jorge dos Santos Fernandes, João Manuel Matos Borges de Oliveira, and Domingos Jose Vieira de Matos on February 1, 2005 and is headquartered in Porto, Portugal.