The United States and Vietnam concluded a second round of tariff negotiations in Washington from May 19–22, making progress but leaving key issues unresolved, Vietnam’s trade ministry said Thursday.

Vietnamese Trade Minister Nguyen Hong Dien and US Trade Representative Jamieson Greer led the talks, which identified areas of near consensus and others requiring further discussion, Reuters reported.

Both sides agreed to resume negotiations in early June.

Vietnam, a major exporter to the US, currently faces a 46 percent reciprocal tariff rate, though these duties are paused until July. The US Trade Representative’s office has not yet commented, according to Reuters.