Strong partnerships AAR’s reputation as a known and trusted partner in the commercial aviation aftermarket is built on our adaptability. We are honored to be listed as a top 100 Aerospace and Defense company by PwC and we took the initiative during FY21 to prioritize our strong partnerships and continued to deliver innovative solutions to OEM and airline customers. AAR is excited to commence a multi-year agreement with United Airlines to perform airframe maintenance on their narrow-body fleet at our Rockford MRO facility. This agreement expands our valued partnership with United and supports the continued growth of the facility and the local workforce — we expect to add up to 250 aviation maintenance jobs in Rockford in the coming years. As the B737 MAX returns to service, AAR signed a ten-year agreement with Honeywell to be the sole channel partner for the B737 MAX electronic bleed air system (EBAS). We provide the inspection, repair and overhaul of 15 EBAS components, supporting worldwide MAX operators from our Component Repair facilities in Amsterdam and New York. In the digital realm, we extended our agreement with Viasat, a global communications company, to provide logistics, repair and aftermarket management services for Viasat’s in-flight connectivity products. This program supports Viasat’s airline customers to maximize component availability and deliver advanced connectivity services to more airlines and passengers around the world. By leveraging AAR’s comprehensive logistics and repair management infrastructure, the AAR-Viasat partnership drives the future of connectivity in the air. As one of the largest parts and engine trading operations in the world, we have focused on expanding material supply for our customers. Notably, the growth of our partnership with Unison Industries underscores our aptitude for adding value to the aftermarket OEM supply chain. In FY21, we also partnered with Fortress Transportation and Infrastructure Investors to create Serviceable Engine Products, an exclusive seven-year CFM56 used serviceable material (USM) partnership. Together, we will build USM inventory for the global aviation aftermarket. Leveraging our extensive USM capabilities gives way to an expansive CFM56 serviceable engine material pool. This partnership positions AAR to service the growing demand for USM on a leading engine platform as customers increasingly prioritize more cost-efficient solutions. aircraft maintained, repaired and overhauled 600 + commercial parts 3m + OEMS supported 24 21m + airframe and engine parts shipped 4 | AAR 2021 ANNUAL REPORT

Annual Report - Page 4 Annual Report Page 3 Page 5