Recently,Umex signed a partnership agreement with ECS Group, the world's largest GSSA company. ECS Group will provide American Airlines with return cargo services in South America, North America, Europe and other countries and regions.

Founded in 1998, ECS Group is the world's largest comprehensive freight services and sales agency (GSSA) logistics service group,owning 170 offices in more than 50 countries and regions in Europe, Asia, America, Oceania and Africa,with more than 1,300 professional employees, ECS Group provides professional cargo services to more than 140 airlines around the world, with an annual turnover of more than 1.5 billion euros.