AVTECH Sweden AB (publ) and Southwest Airlines have entered into an agreement covering a 3-month trial evaluation of the Aventus Enroute Winds service, targeted to start in the fourth quarter of 2021. The agreement includes an optional transition to a 17-month commercial service contract in the first quarter of 2022 with an expected value in between SEK 3.5 million and SEK 7 million, dependent on number of flights and USD exchange rate. The Aventus Enroute Winds service provides, as an addition to the Aventus Descent Winds service already in use, highly accurate and tailored enroute wind information in real-time to all Southwest Airline's aircraft and routes. This leads to improved flight execution, increased situational awareness and reduced workload for the pilots. Utilization of Aventus optimal enroute wind data positions Southwest for the continued expansion of NextGen initiatives.