Ahlstrom-Munksjö Oyj - Major shareholder announcements

Correction: Ahlstrom-Munksjö Oyj: Change in the holdings of AC Invest Five BV and AC Invest Six BV

AHLSTROM-MUNKSJÖ OYJ, STOCK EXCHANGE RELEASE April 4, 2017 at 17:30 CEST
Helsinki, Finland

Correction: Ahlstrom-Munksjö Oyj: Change in the holdings of AC Invest Five BV
and AC Invest Six BV

Ahlstrom-Munksjö Oyj has today received a correction related to the notification
in accordance with Chapter 9, Section 5 of the Finnish Securities Markets Act
from Ahlström Capital Oy on behalf of AC Invest Five BV and AC Invest Six BV.

The corrected notification release can be read below in its entirety.

Ahlstrom-Munksjö Oyj received on April 3, 2017 a notification in accordance with
Chapter 9, Section 5 of the Finnish Securities Markets Act from Ahlström Capital
Oy on behalf of AC Invest Five BV and AC Invest Six BV.

According to the notification, as a consequence of the merger of Ahlstrom
Corporation into Munksjö Oyj, the proportion of Ahlstrom-Munksjö shares owned by
AC Invest Five BV, a fully owned indirect subsidiary of Ahlström Capital Oy, has
fallen below the thresholds of 15 per cent and 10 per cent on April 1, 2017
(from 18.11% to 9.63%). Furthermore, the proportion of Ahlstrom-Munksjö shares
owned by AC Invest Six BV, a fully owned indirect subsidiary of Ahlström Capital
Oy, has exceeded the threshold of 5 per cent on April 1, 2017 (from 0% to
5.69%). No notification threshold has been crossed on the group level. Ahlstrom
-Munksjö’s registered total number of shares and voting rights of 96,438,573
shares and voting rights has been used as the basis of calculation of
percentages for the notification.

The total positions of Ahlström Capital Oy and its subsidiaries subject to the
notification are as follows:

+-----------------+-----------+-----------------------------+---------+
|                 |% of shares|% of shares and voting rights|Total of |
|                 |and voting |through financial            |both in %|
|                 |rights     |instruments                  |         |
+-----------------+-----------+-----------------------------+---------+
|Resulting        |14,708,380 |-                            |15.32    |
|situation on the |           |                             |         |
|date on          |           |                             |         |
|which threshold  |           |                             |         |
|was crossed or   |           |                             |         |
|reached          |           |                             |         |
+-----------------+-----------+-----------------------------+---------+

Notified details of the resulting situation on the date on which the threshold
was crossed or reached:

+---------------------+-----------+----------+-----------+-------------------+
|Class/type of        |Number of             |% of shares and voting rights  |
|sharesISIN-code   (if|shares and            |                               |
|possible)            |voting                |                               |
|                     |rights                |                               |
+---------------------+-----------+----------+-----------+-------------------+
|                     |Direct     |Indirect  |Direct     |Indirect           |
|                     |  (SMA 9:5)|  (SMA 9:6|  (SMA 9:5)|  (SMA 9:6 och 9:7)|
|                     |           |och 9:7)  |           |                   |
+---------------------+-----------+----------+-----------+-------------------+
|FI4000048418         |-          |14,708,380|-          |15.32              |
+---------------------+-----------+----------+-----------+-------------------+
|SUMMA                |14,708,380            |15.32                          |
+---------------------+-----------+----------+-----------+-------------------+

Full chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held starting with the ultimate
controlling natural person or legal entity:

+----------+-------------+------------------------+-------------+
|Name      |% of shares  |% of shares   and voting|Total of both|
|          |and voting   |rights through financial|             |
|          |rights       |instruments             |             |
+----------+-------------+------------------------+-------------+
|Ahlström  |-            |-                       |-            |
|Capital Oy|             |                        |             |
+----------+-------------+------------------------+-------------+
|Ahlstrom  |-            |-                       |-            |
|Capital BV|             |                        |             |
+----------+-------------+------------------------+-------------+
|AC Invest |9.63         |-                       |9.63         |
|  Five BV |             |                        |             |
+----------+-------------+------------------------+-------------+
|AC Invest |5.69         |-                       |5.69         |
|Six   BV  |             |                        |             |
+----------+-------------+------------------------+-------------+

AC Invest Five BV is a 100% owned subsidiary of Ahlstrom Capital BV and Ahlstrom
Capital BV is a 100% owned subsidiary of Ahlström Capital Oy. AC Invest Six BV
is a 100% owned subsidiary of Ahlstrom Capital BV and Ahlstrom Capital BV is a
100% owned subsidiary of Ahlström Capital Oy.

Ahlstrom-Munksjö Oyj
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.