CNN reported that one issue remained unresolved Sunday as World Trade Organization (WTO) negotiators worked to reach a series of agreements to end agricultural, manufacturing and service trade barriers.
The issue yet to be settled is the date for ending agricultural export subsidies, WTO press officer Emmanuelle Ganne told CNN.
The dispute remained between Brazil and the European Union.
Earlier Sunday, the EU had suggested 2013 as a possible date to end the subsidies. Brazil, the United States and some developing countries maintain that year is too far away and would rather end the subsidies by 2010.
Delegates tell CNN that a compromise could be reached, mandating the subsidies end progressively between 2010 and 2013.
Sunday is the sixth and last day of the WTO's ministerial-level meetings in Hong Kong. Delegates for 149 countries have gathered in Hong Kong. Developing countries have demanded that richer nations lower trade barriers.
The talks have been marked by debate between the EU and the United States. While the negotiators struggled, disagreement also brewed in the street outside the talks, in the worst protests Hong Kong has seen in decades.