与美国威利斯融资租赁公司合资成立中航材威利斯发动机租赁有限公司，为航空公司用户提供国际一流的发动机保障解决方案，业务范围涵盖航空发动机的融资租赁，经营租赁，售后回租，共享库平台，AOG支援等。保障的发动机型号包括CFM56-5B、CFM56-5C、CFM56-7B、CFMLEAP、GE90、GEnx、CF6-80,CF34-3B、CF34-10E6、V2500、PW2000、PW4000。

　　CASC Willis Engine Leasing Company is the joint venture invested by CASC and Willis Leasing Finance Company, dedicating to provide world-class aircraft engine support solutions for airlines with the combination of both parties' strengths. It can provide engine support solutions including finance leasing, operational leasing, sale-leaseback, pooling, AOG support and other customized service etc. The types of supported engine include CFM56-5B, CFM56-5C, CFM56-7B, CFM LEAP, GE90, GEnx, CF6-80, CF34-3B, CF34-10E6, V2500, PW2000, and PW4000.