The forestry assets of a forestry savings company are subject to a valuation every fifteen years. The first valuation is carried out when the company acquires the assets. It is updated every three years on the basis of documents provided by the management company, unless exceptional events, work or felling require a new update before this deadline. A second appraisal is carried out from the second year of existence of the forest savings company, covering at least 20% of the company’s forest assets each year, so that all the forest assets are appraised at the end of the fourteenth year.