Flagging notification in accordance with Chapter 9 Section 10 of the Finnish Securities Markets Act

Basware Corporation, stock exchange release, 11 May 2022 at 2:45 p.m. EEST

Basware Corporation has received on 10 May 2022 the following notification
pursuant to Chapter 9, Section 5 of the Finnish Securities Market Act from The
Goldman Sachs Group, Inc. according to which their total holding of shares of
Basware Corporation has decreased below five (5) percent on 9 May 2022.
According to the notification, the reason for the notification was an
acquisition or disposal of shares or voting rights and acquisition or disposal
of financial instruments.

Basware Corporation has one series of shares in which each share carries one
vote. The total number of shares and votes is 14,463,936.

The holding of The Goldman Sachs Group, Inc.according to the notification:

                   % of     % of shares    Total   Total number of shares
                  shares     and voting      of    and voting rights of
                    and        rights       both   issuer
                  voting      through       in %
                  rights     financial     (7.A +
                  (total    instruments     7.B)
                  of 7.A)  (total of 7.B)
Resulting          1.46%       0.14%       1.60%         14,463,936
situation on the
date on
which threshold
was crossed or
reached:
Position of        4.01%       1.36%       5.37%
previous
notification (if
applicable):

Notified details of the resulting situation following the crossing of the
threshold:

A: Shares and voting rights

              Number            % of shares and voting rights
              of
              shares
              and
              voting
              rights
Class/type    Direct  Indirect  Direct     Indirect (SMA 9:6 and 9:7)
of shares:    (SMA    (SMA 9:6  (SMA 9:5)
              9:5)    and 9:7)
FI0009008403          201,861              1.46%
Subtotal      201,861           1.46%
(A):

B: Financial Instruments

Type of        Expiration  Physical or  Number of shares   % of shares
financial      date        cash         and voting rights  and voting
instrument                 settlement                      rights
Securities     Open        Physical     540                0.004%
Lending
Swap           14/04/2032  Cash         11,121             0.08%
Swap           07/05/2030  Cash         6,043              0.04%
Swap           06/05/2030  Cash         1,334              0.01%
Swap           03/06/2030  Cash         362                0.003%
Swap           20/05/2030  Cash         331                0.002%
Swap           22/04/2025  Cash         265                0.002%
Swap           14/05/2030  Cash         249                0.002%
Swap           02/03/2032  Cash         56                 0.0004%
Subtotal (B):                           20,301             0.14%

Full chain of controlled undertakings:

Name                % of shares  % of shares and voting rights  Total
                    and voting   through financial instruments  of
                    rights                                      both
The Goldman Sachs
Group, Inc.
Goldman Sachs (UK)
L.L.C.
Goldman Sachs
Group UK Limited
Goldman Sachs
International

The Goldman Sachs
Group, Inc.
GSAM Holdings LLC
Goldman Sachs
Asset Management,
L.P.

The Goldman Sachs
Group, Inc.
Goldman Sachs Bank
USA
Goldman Sachs Bank
Europe SE

For more information, please contact:

Katariina Kataja, Investor Relations Manager, Basware Corporation
Tel. +358 40 527 1427, katariina.kataja@basware.com

Distribution:
Nasdaq Helsinki
Key media
www.basware.com/investors

About Basware:
Basware is a leading provider of Networked Procure-to-Pay solutions with the
largest open e-invoicing network in over 180 countries. Our cloud-based
technology enables enterprises to fully manage their spend, mitigate financial
risk and reduce operating costs through automation of finance, procurement,
accounts payable and accounts receivable processes. Our open technology
ecosystem and extensive partner network have helped over 6,500 businesses in 60
countries move towards 100% spend visibility which enables better business
decisions – a concept we call Visible Commerce. Basware’s solutions support the
transition to a lower-carbon economy by digitization and automation. Basware is
traded on the Helsinki exchange (BAS1V: HE). Find out more at
https://investors.basware.com/en.