Complex sentence: The Portucel Soporcel Group is a portuguese company, which has resulted from the union of Portucel and Soporcel, is one of the five largest European producers of uncoated woodfree paper.
Split into simpler sentences: The Portucel Soporcel Group is a portuguese company, which has resulted from the union of Portucel and Soporcel. It is one of the five largest European producers of uncoated woodfree paper.