semapa is one of portugal’s largest industrial groups being present on several continents. its business activities consist of indirectly managing its holdings in three industrial areas: ◾ pulp and paper, through its holding in the navigator company ◾ cement and other building materials, through its holding in secil ◾ environment, through its holding in etsa semapa is a public company, with head office in lisbon and quoted shares on euronext lisbon market.