The forest concession is a type of business development plan in which a business group, whether it is a consortium or not, selected by government bidding, grants the Forest Management Plan upon immediate payment agreement.

The Sustainable Forest Management is a viable alternative to the conventional practice of exploring the forest natural resources, especially because it is "ecologically sustainable, economically viable and socially correct", where the interaction of the forest with other natural resources such as water, soil, air, wildlife and the conservation of the biodiversity are taken very seriously.

The Forest Management activities aim to make these practices compatible with the environment natural cycle which maintains its biological diversity protecting rare species or in risk of extinction. Despite the unavoidable damages caused by deforestation, the PMFS maintains its natural cycle of the forest without drastically changing the development of species and it does not allow a prolonged exposure of the soil to harmful conditions.

Strictly connected to the context of social demands for forest conservation and environmental protection, the Low Impact Exploration System (EIR in Portuguese) was created. This system uses the best harvest techniques available in this industry to reduce deforestation, soil erosion, river basin damage and contamination, reduce the risk of fire and the maintenance of the natural regeneration process as well as the protection of the biodiversity.

Thus, PMFS - SAMISE aims to supply the timber industry with wood of legal origin as well as bringing social and economic development to the communities involved, where the main products manufactured by this industry are lumber, decking, S4S and flooring and these products are marketed to meet the demands of the regional, domestic and overseas Market.