U.S. Consulate General, Hong  Kong & Macau
        U.S. Commercial  Service, Hong Kong and Macau:   The U.S. Commercial Service assists U.S. exporters  by providing market research, trade leads and business contacts.  It also  helps Hong  Kong and Macau companies  identify potential American business partners through its various trade promotion  programs
        American Chamber of Commerce in Macau (AmCham Macau):   provide insight and business connectivity that is unrivalled by any  other international chamber.
        U.S.  Department of State (Travel.State.Gov): Consular Information Sheet  about policies, requirements, transportation, security etc. when Americans  travel to Macau SAR. 
        U.S.  Census Bureau for Macau and U.S.: U.S.  Trade Balance with Macau from 1985 - Present.
        USDA Foreign Agricultural  Service in Hong Kong and Macau:  The ATO in Hong Kong works closely with  importers, wholesalers, retailers and other trade promotion organizations to  increase the sale of U.S. food and agricultural products in Hong Kong and  Macau.
                  Macau Government Tourism Office, US Representatives.