Metsä Board Corporation Stock Exchange Release 9 December 2013 at 9.30 am EET Standard & Poor's Ratings Services has upgraded Metsä Board Corporation's rating from B to B+. The outlook of the rating is stable. Upgrade does not have an impact on Metsä Board's current annual financing costs. METSÄ BOARD CORPORATION Further information: Matti Mörsky, CFO, tel. +358 10 465 4913 Juha Laine, VP Investor Relations, tel. +358 10 465 4335