WHO WE ARE AIRLINE SERVICES INTERNATIONAL Inc., Delivers Tailor-Made Air Cargo GSSA Solutions. Headquartered in Ontario - Canada, UPS IS A GLOBALLY RECOGNIZED GSSA WITH OVER 30 YEARS OF EXPERIENCE AND WELL-ESTABLISHED LIST OF MAIN AIRLINES & CUSTOMER FORWARDERS. Learn More Our History 1989YYZ Airport2019YYZ Airport 1989 SIN 1989 ASI WAS ESTABLISHED ON MARCH 7TH, ...