Ahlstrom-Munksjö to publish January-March 2017 interim report on April 26, 2017

AHLSTROM-MUNKSJÖ OYJ, STOCK EXCHANGE RELEASE April 11, 2017 at 11:00 a.m. CEST Ahlstrom-Munksjö Oyj will publish the January-March 2017 interim report of Munksjö Oyj as well as the Final Accounts Release of Ahlstrom Corporation on Wednesday, April 26, 2017 approximately at 7:30 a.m. CEST. The reports and related supplementary material will be available at www.ahlstrom-munksjo.com/investors after publication. The company’s combined pro forma financial information for 2015, 2016 and January-March 2017 will be published in May 2017. A combined news conference, call and live webcast will be arranged on the publishing day April 26, 2017 at 10:00 a.m. CEST (11:00 a.m. EEST, 8:00 a.m. GMT) at restaurant Savoy (Eteläesplanadi 14, 7th floor, Helsinki). The results will be commented on by President and CEO Jan Åström, Deputy CEO Sakari Ahdekivi and CFO Pia Aaltonen-Forsell. The event will be held in English. Webcast and conference call information The combined webcast and teleconference can be viewed at: http://qsb.webcast.fi/m/munksjo/munksjo_2017_0426_q1/  Finnish callers: +358 (0)9 7479 0404 Swedish callers: +46 (0)8 5065 3942 US callers: +1 719 325 2346 UK callers: +44 (0) 330 336 9412  Conference ID: 4282354 To join the conference call, participants are requested to dial one of the numbers above 5-10 minutes prior to the start of the event. An on-demand version of the conference call will be available on Ahlstrom-Munksjö’s website later the same day. Ahlstrom-Munksjö Oyj For further information, please contact:

Juho Erkheikki, Investor & Media Relations Manager, tel. +358 50 413 45 83, juho.erkheikki@ahlstrom-munksjo.com

Ahlstrom-Munksjö in brief Ahlstrom-Munksjö is a global leader in fiber-based materials, supplying innovative and sustainable solutions to customers worldwide. Our offerings include decor paper, filter media, release liners, abrasive backings, nonwovens, electrotechnical paper, glass fiber materials, food packaging and labeling, tape, medical fiber materials and solutions for diagnostics. Combined annual net sales are about EUR 2.2 billion and we employ 6,200 people. The Ahlstrom-Munksjö share is listed on the Nasdaq Helsinki and Stockholm. The company was formed on April 1, 2017 through the merger of Ahlstrom Corporation and Munksjö Oyj. Read more at www.ahlstrom-munksjo.com.