here what happened
On 29 September 1971, a second draft resolution, A/L.632 and Add.l and 2, sponsored by 22 members including the U.S., was proposed declaring that any proposal to deprive the Republic of China of representation was an important question under
Article 18 of the UN Charter, and thus would require a two-thirds
supermajority for approval.
[4]
On 29 September 1971, a third draft resolution, A/L.632 and Add.l and 2, sponsored by 19 members including the U.S., was proposed by which the Assembly would affirm the right of representation of the People's Republic of China and recommend that it be seated as one of the five permanent members of the
Security Council, while also affirming the continuing right of representation of the Republic of China
On 25 October 1971, the voting took place. In the first vote held, the Assembly rejected the U.S. backed proposal that the matter would require a supermajority vote — the 'important question motion'.
[4] The Assembly then voted on a separate U.S. proposal that the words "and to expel forthwith the representatives of
Chiang Kai-shek from the place which they unlawfully occupied at the United Nations and in all the organizations related to it" be removed from the draft resolution. This motion would have allowed the PRC to join the UN as "China's representative",[
clarification needed] while allowing the ROC to remain a regular UN member (if there had been enough votes for it). The motion was rejected by a vote of 61 to 51, with 16 abstentions.
At this point the representative of the Republic of China, Ambassador
Liu Chieh, stated "in view of the frenzy and irrational manner that has been exhibited in this hall, the delegation of the Republic of China has now decided not to take part in any further proceedings of this General Assembly."
[6] He said the "ideals upon which the UN was founded" had been "betrayed".
[7]
The Assembly then adopted draft Albanian proposed resolution A/L. 630 and Add.l and 2, by a roll-call vote of 76 to 35, with 17 abstentions, as Resolution 2758. The Beijing government began representing China at the UN from 15 November 1971 and its delegates were seated at the UN Security Council meeting held on 23 November 1971, the first such meeting where representatives of the Beijing government represented China.
[4]