At the meeting, the two countries also agreed to expedite negotiations on their maritime borders and shared views on Asean's firm stance against the military regime in Myanmar.
The delegation led by State Department Counselor Derek Chollet, who serves as a policy adviser to Secretary of State Antony Blinken
A spokesman for the junta said the democracy icon has been charged with crimes.
It was not clear if the envoy will be able to meet Ms Suu Kyi.
Envoy Erywan Yusof said Myanmar's junta had not made progress on an Asean peace roadmap.
The US and Singapore believe, however, that the solution ultimately lies within Myanmar itself, he said.
Norwegian firm hopes to sell Telenor Myanmar, says it has become difficult to operate in country.
Experts say onus is on Nepal to take initiatives for holding the meeting as the SAARC chair.
Television show host Jacky Wu denounced online trolls for bullying Vietnamese immigrants in Taiwan
Philippines looking for funds to replace aging fleet of PH Air Force