Basic requirements ■ The laws and regulations currently applied in the relevant countries of origin determine the minimum environmental requirements. ■ Holmen Skog does not harvest in or purchase wood from the following types of forest: - Key biotopes in Sweden as defined by the forestry authority. - Forests that are protected for reasons of nature conservation. - Virgin forests. - Old growth forests, i.e. pronounced uneven-aged, mul ti-layered natural forests with an abundance of old, large trees and dead wood in various stages of degradation.