The two-day talks taking place at the truce village of Panmunjeom are expected to address details for shipping and storage of 950,000 tons of heavy oil or equivalent aid to the North, which is known to have a storage facility for only 200,000 tons annually, the agency said.
Yonhap quoted a South Korean diplomat as saying that the goal of the talks "is to set up one of the two pillars of denuclearization, but it will not be easy to come up with a complete action plan in just two days."
The diplomat also said as quoted by the South Korean agency that the other pillar was complete disablement of the North's nuclear facilities within a year.
Pyongyang has already received 50,000 metric tons of oil for shutting down its only operating nuclear reactor in July and letting UN weapons inspectors verify the closure, which is the first phase of the groundbreaking deal with the other five nuclear negotiators, the United States, China, South Korea, Russia, and Japan.
As the second phase, which envisions a further 950,000 metric tons of fuel and other incentives, the Communist state is to declare all its nuclear facilities, including those dealing with nuclear weapons production.
A separate working group, on nuclear disarmament, will meet next week for two days in the northeastern city of Shenyang, China, Yonhap said.
Russia's nuclear negotiator, Deputy Foreign Minister Alexander Losyukov, said Monday that all the five groups, including one to improve relations between the North and the U.S., and between the North and Japan, and on security and cooperation in Northeast Asia, would hold meetings in August. Security experts will gather in Moscow August 21-22.
Ministerial talks are expected to take place in September.
