Manalo was based in Manila for eighteen years before getting her first foreign assignment. She was the Philippine Permanent Delegate to the UNESCO from 1990 to 1994, and the European Economic Community from 1979 to 1987.
Manalo was based in Manila for eighteen years prior to receiving her first international posting. She served as the Philippine Permanent Representative to UNESCO from 1990 to 1994, and the European Economic Community from 1979 to 1987.