ocr: Finland's trees are - its prime natural resource. Commercial forests cover 65% oft the land and wood products account for 40% of exports. Finland has - no - oil, but has significant hydroelectric resources. Industry's high energy demands are met primarily by thermal and nuclear power. A fifth nuclear power station is planned. Oili import costs have risen since 1990, when the collapse ofthe USSR endeda42-year agreement on the exchange ofFinnish manufactures for Soviet oil.
