Iranian President Mahmoud Ahmadinejad will attend Iranian National Pavilion Day at the Shanghai World Expo on June 11, said Chinese Foreign Ministry spokesman Qin Gang Tuesday at a regular news briefing. During his stay in China, Ahmadinejad would only participate in activities related to the Shanghai World Expo, Qin said. Responding to a question on the Iranian nuclear issue, Qin reaffirmed that China had always adhered to the dual-track strategy for resolving the issue, and always insisted that dialogue and negotiations should be the best way to resolve the issue. China hoped Iran would strengthen cooperation with the International Atomic Energy Agency (IAEA) to resolve the issue, Qin said. He also called on the parties concerned to promote a proper settlement of the Iranian nuclear issue through dialogue, negotiations and diplomatic efforts. The five permanent members of the UN Security Council -- the U.S., Russia, China, France, Britain -- and Germany announced on May 18 their agreement on a draft resolution proposing new sanctions against Iran. The draft resolution was submitted to the full 15-member Security Council for further discussion on the same day. Qin said the UN Security Council was still discussing the relevant draft resolution, and the discussion did not mean the end for diplomatic efforts. 