Question: During what event was the current office of the Chinese politician who entered the Politburo in 2012 once disbanded ?

text: Politics of China
State leaders -- Full Politburo members

The politics of the People's Republic of China takes place in a framework of a socialist republic run by a single party, the Communist Party of China, headed by the General Secretary. State power within the People's Republic of China (PRC) is exercised through the Communist Party, the Central People's Government (State Council) and their provincial and local representation. The state uses Internal Reference [zh], secret documents produced by Xinhua News Agency, similar to US's President's Daily Brief, though delivered to most of its officials according to level of secrecy of the information, a major source of information of the society. Each local Bureau or office is under the coequal authority of the local leader and the leader of the corresponding office, bureau or ministry at the next higher level. People's Congress members at the county level are elected by voters. These county-level People's Congresses have the responsibility of oversight of local government and elect members to the Provincial (or Municipal in the case of independent municipalities) People's Congress. The Provincial People's Congress, in turn, elects members to the National People's Congress that meets each year in March in Beijing. The ruling Communist Party committee at each level plays a large role in the selection of appropriate candidates for election to the local congress and to the higher levels. The President of China is the head of state, serving as the ceremonial figurehead under National People's Congress. [note 1] The Premier of China is the head of government, presiding over the State Council composed of four vice premiers and the heads of ministries and commissions. As a one-party state, the General Secretary of the Communist Party of China holds ultimate power and authority over state and government. [note 2] The offices of President, General Secretary, and Chairman of the Central Military Commission have been held simultaneously by one individual since 1993, granting the individual de jure and de facto power over the country.
Hanzi Name Year of birth K Office ( s )
习近平 Xi Jinping 1953 - General Secretary of the Communist Party of China President of the People 's Republic of China Chairman of the Central Military Commission
李克强 Li Keqiang 1955 - Premier of the State Council
栗战书 Li Zhanshu 1950 - Chairman of the National People 's Congress Standing Committee
汪洋 Wang Yang 1955 - Chairman of the National Committee of the Chinese People 's Political Consultative Conference
王沪宁 Wang Huning 1955 - Secretary of the Central Secretariat ( first-ranked )
赵乐际 Zhao Leji 1957 - Secretary of the Central Commission for Discipline Inspection
韩正 Han Zheng 1954 - Vice Premier of the State Council ( first-ranked )
丁薛祥 Ding Xuexiang 1962 - Director of the General Office
王晨 Wang Chen 1950 - Vice Chairman of the Standing Committee of the National People 's Congress
刘鹤 Liu He 1952 - Vice Premier of the State Council
许其亮 Xu Qiliang 1950 § Vice Chairman of the Central Military Commission
孙春兰 Sun Chunlan 1950 ♀ Vice Premier of the State Council
李希 Li Xi 1956 - Party Secretary of Guangdong
李强 Li Qiang 1959 - Party Secretary of Shanghai
李鸿忠 Li Hongzhong 1956 - Party Secretary of Tianjin
胡春华 Hu Chunhua 1963 - Vice Premier of the State Council
杨洁篪 Yang Jiechi 1950 - Director of the Office of Foreign Affairs
杨晓渡 Yang Xiaodu 1953 - Director of the National Supervisory Commission
张又侠 Zhang Youxia 1950 § Vice Chairman of the Central Military Commission
陈希 Chen Xi 1953 - Head of the Organization Department