Rio Amazonas Airport was established by a Fortune 500 company that specialized in which two areas of economy?
Río Amazonas Airport Río Amazonas Airport (IATA: PTZ, ICAO: SESM) is an airport serving Shell Mera, a town in the Pastaza Province of Ecuador. The airport was established in 1937 by Royal Dutch Shell and abandoned in 1948. In 1949 the Mission Aviation Fellowship, a Christian missionary group, established themselves in the area and used the airport as their main base.
Oi (telecommunications) Oi (] , Portuguese for "Hi"), formerly known as Telemar, is the largest telecommunications company in Brazil and South America, both in terms of subscribers and revenues. It is headquartered in Rio de Janeiro. Oi's major subsidiaries include Telemar and Brasil Telecom.