We are not doing this under a set time frame, so we will continue negotiations to coordinate each party's interest given the draft we have now.

If the parties concerned do not soften their stances, it will be hard to achieve any progress ... As far as the prospect is concerned, I am neither optimistic nor pessimistic.

We shared the view that participants in the talks should produce substantial progress and come up with a framework for the realization of a nuclear-free Korean Peninsula.

At today's meeting between the chief delegates, all the countries reached a consensus that they should adopt a final document with a minimum revision to the draft document made at the first phase of the fourth round of talks.

But North Korea, when they complete dismantlement of their nuclear weapons and nuclear programs, they can have their right to peaceful use of nuclear energy.

If each party can be a little more flexible in its position there will be good results, but if they stick to their current position, good results will be hard to expect.

Now we are talking about the concept of the right to peaceful use of nuclear energy. We are not the stage to discuss in details about how this concept will develop at a later stage.

If the parties concerned do not soften their stance, it will be hard to achieve progress.