Premier Zhou and Chen Yi answer questions from reporters in Cairo. Zhou and Chen were asked about issues such as their visit to Arab and African countries, China's support for national liberation movements in Asia, Africa, and Latin America, the United Arab Republic (Egypt) and Sri Lanka's perspective of the Sino-Indian border conflict, the purpose of the Chinese delegation's visit to Arab and African countries, issues that will be discussed in potential second Bandung Conference, the Sino-Soviet split, and the Pakistani national movement. Zhou also explains why China opposed the ban on nuclear test treaty.

Zhou Enlai speaks with head of the Colombian House of Representatives delegation to China, José Ancizar Lopez, about an initiative to establish a nuclear weapons free zone in Latin America. Lopez agrees that nuclear weapons should not be used, but nuclear energy for medicine and other peaceful uses is good. Zhou calls on Latin America and Africa to take the initiative on preventing the use of nuclear weapons.

Over the course of three conversations, Zhou and Nkrumah discuss African regionalism, China's position at the United Nations and its relations with the United States, non-alignment, decolonization, developments in the Congo, and an African nuclear-weapons-free zone.

Zhou Enlai, Chen Yi, and Ambassador Raza coordinate China and Pakistan's strategies toward the Nuclear Test Ban Treaty. They also discuss Sino-American relations.

Zhou Enlai informs Mao Zedong that favorable weather conditions will allow them to carry out the aerial nuclear test explosion. An official statement for the press has also been prepared.

On May 10, Chinese military officials confirm that they are prepared to detonate an aerial nuclear explosion but, due to unfavorable weather conditions, must postpone the test until May 12 or 13.

Having successfully executed a nuclear test explosion, Zhou Enlai describes the Chinese government’s motivation for pursuing atomic weapons capabilities. Zhou argues that the Three-Nation Treaty (Limited Test Ban Treaty) is insufficient, that the United States remains committed to nuclear proliferation despite the agreement, and that China seeks to end the monopoly that other nuclear powers have thus far exploited. Zhou also calls for the organization of a global, truly equal summit at which to discuss the issue of nuclear weapons testing and proliferation.

Zhou Enlai notifies Mao Zedong and other prominent political and military officials that preparations have been made to detonate the explosion between October 15 and 20, depending on weather conditions. Attention is also given to the high level of secrecy surrounding the explosion, methods of data collection, publicity, and the political consequences of the explosion.

Zhou Enlai offers multiple dates on which the first nuclear test explosion may take place and asks Mao Zedong for his preference.

Zhou Enlai addresses the State Council citing a need for China to "master atomic energy." The Chinese program is far behind in this area, but plans to catch up with the help of Soviet technical assistance.