The document was struck by China, the Democratic People's Republic of Korea (DPRK), the United States, the Republic of Korea (ROK), Russia and Japan during the fourth round of the six-party talksChinese Foreign Ministry spokesperson Lu Kang made the remarks at a routine press briefing, saying China is open to all efforts that are conducive to solving the issue peacefully via political and diplomatic means澳博体育官In return, the United States promised not to use nuclear weapons or conventional weapons to attack or invade the DPRKIn the statement, the DPRK reaffirmed its commitment to abandoning nuclear weapons and existing nuclear programs"We believe if the parties concerned can adher澳博体育官e to those consensus, abide by the spirit of the joint statement and seek ways to address the reasonable concerns of concerned parties, we will find a way out," said the spokespersonLu said the parties concerned should learn from experience in reaching the agreement, which includes holding that the core of the Korean Peninsula nuclear issue is over security issues, the key lies with the United States and the DPRK, and concerns of all parties should be resolved in a balanced way