SEAM was founded in 2002 as a joint venture between China Aircraft Services Limited and China Eastern Airlines. SEAM provides a wide range of line maintenance and aircraft ground handling services to airline customers at Shanghai Pudong International Airport and Shanghai Hongqiao International Airport.

The objective of SEAM is to provide the highest quality services to airline customers by leveraging the technical capabilities, international management experience, resources and financial support offered from its shareholders. All employees of SEAM are delicately trained to meet international standards and safety requirements. Apart from line maintenance capabilities, SEAM also maintains its own fleet of ground support equipment to ensure a seamlessly on-time service can be provided to airline customers.