The company, which is part of the Lecta Group, said all of its operation and product lines are now Chain-of-Custody certified.

It said it has "significantly increased the purchase of pulp" sourced from certified forest plantations, reaching 86% in 2009.

The remaining 14% comes from controlled sources that are accepted by the certifications.

A spokesman for the company said that the business had surpassed the objective set out in its 2008 Environmental Report to have 70% of its pulp certified by 2010.