"We can say that there already are positive results. A draft version of the document already exists, and we welcome this. However, a certain distance has yet to be covered before we can reach [a] final agreement. Several key issues have not yet been resolved," Hua told reporters at a press briefing.
The active participation of all sides and a stronger effort by developed countries will guarantee the climate deal's success, she added.
The COP21 has been extended for one day into Saturday to allow for a final draft climate deal to be prepared and to coordinate this with all the groups present at the conference.
"China will do everything to reach an inclusive and balanced agreement, which would be fair and rational," Hua said.
The UN climate summit, started in Paris on November 30, is a meeting of the Kyoto Protocol parties. Attended by representatives from 195 countries, it is anticipated that the summit will result in the signing of a legally binding agreement.