Basware Corporation, stock exchange release, 15 July 2022 at 1.25 p.m. EEST Basware Corporation has received on 15 July 2022 the following notification pursuant to Chapter 9, Section 5 of the Finnish Securities Market Act from Accel -KKR Capital Partners VI, LP according to which Topaz MidCo Ltd's holding of shares has decreased below five (5) percent and total holding of both shares and financial instruments is below ten (10) percent of the total number of shares and votes in Basware Corporation on 14 July 2022. 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 Topaz MidCo Ltd according to the notification: % of shares % of shares and voting rights Total of and voting through financial instruments both in % rights Resulting 0% 6.93% 6.93% situation on the date on which threshold was crossed or reached: Position of 17.73% 6.93% 24.66% previous notification (if applicable): Notified details of the resulting situation following the crossing of the threshold: A: Shares and voting rights Class/type Number % of shares and voting rights of shares of ISIN code shares (if and possible) voting rights Direct Indirect Direct Indirect (SMA 9:5) (SMA 9:6 (SMA 9:5) (SMA 9:6 ja 9:7) ja 9:7) FI0009008403 0 0 0% 0% SUBTOTAL (A) 0 0% B: Financial Instruments according to SMA 9:6a Type of Expiration Exercise/Co Physical Number of shares % of shares financial date nversion or and voting rights and voting instrument Period cash rights settlement Warrants 22 August 2 April Physical 1,003,000 6.93% 2024 2019 (on or about) - 22 August 2024 Subtotal 1,003,000 6.93% (B): Additional information: Change of major shareholdings notified herein relate to the completion of the tender offer by Sapphire BidCo Ltd in accordance with the tender offer document dated 25 April 2022. For more information, please contact: Katariina Kataja, Investor Relations Manager, Basware Corporation Tel. +358 40 527 1427, katariina.kataja@basware.com Distribution: Nasdaq Helsinki Main media investors.basware.com/en 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.