Managers' transactions Vaisala Corporation managers and their closely associated persons referred to in the Market Abuse Regulation ((EU) No 596/2014, "MAR") are requested to follow the below instructions for notifying transactions as of July 3, 2016. Such notifications shall be made to Vaisala Corporation and the FIN-FSA immediately after the date of the transaction Instructions on notifying of transactions 1. Inform Vaisala Immediately after conducting a transaction, inform Vaisala by email to [email protected]. 2. Fill in the form Fill in the form regarding the transaction on FIN-FSA website. More information can be found at FIN-FSA website. Details for the form: LEI code of Vaisala Corporation 743700RNDD7KU11HW873 Short name of Vaisala Corporation share VAIAS (A share) ISIN code of Vaisala Corporation share FI0009900682 (A share) Notification reference Generated automatically (no need to fill in) 3. Deliver the notification Send the filled form attached to an email to Vaisala promptly after the date of the transaction. Do not send the form by post due to short notification timetable. Send to Vaisala: [email protected] Please also add your phone number to the e-mail message so that we can contact you if Vaisala has questions about the notification Vaisala will publish the notification as a stock exchange release without delay and no later than two business days after receipt of the notification.