The Company was established in 1825 and on the 30 th of June 1908 was registered as Manuel Rodrigues de Oliveira Sá & Filhos, Lda., becoming a public limited company in 1991. Nowadays, the Company, that is the oldest Portuguese ropemaker, is being managed by the 5 th generation of this same family. Cordoaria Oliveira Sá has two industrial units, both certified by ISO 9001: one is located in Maia (5 minutes from Oporto's airport) where produces both steel wire ropes and synthetic ropes; and the other located in Paredes (35 km from Oporto) only dedicated to the production of synthetic ropes. Oliveira Sá is the only producer of steel wire ropes in Portugal, detaining a major quote of the world market. In the synthetic fibre ropes market, is one of the biggest Portuguese producers,