Basware Oyj

Major Shareholding Notification • May 9, 2022

Disclosure 408447

BasWare - Major shareholder announcements

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

Basware Corporation, stock exchange release, 09 May 2022 at 11:30 a.m. EEST Basware Corporation has received on 6 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 increased above five (5) percent on 5 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 4.01% 1.36% 5.37% 14,463,936 situation on the date on which threshold was crossed or reached: Position of 3.58% 0.19% 3.76% 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 580,650 4.01% Subtotal 580,650 4.01% (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 176,373 1.22% 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 0.00% 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): 196,133 1,36% 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.