China says Taiwan officials have been derided by the international community after they attempted to join Pacific islands' delegations at a United Nations conference last week.
On Monday China's Foreign Ministry spokesman Zhao Lijian said the move to try and 'sneak into' the United Nations Ocean Conference in Lisbon by joining the Tuvalu and Palau delegations opened Taiwan up to ridicule, calling such an act "disgraceful and degrading".
Taiwan's exclusion from United Nations events has been highly-publicised in recent years, with Taiwan, a democratic island state claimed by Beijing, refused membership to the World Health Organisation during the Covid pandemic due to the "One China" policy.
Taiwan is largely excluded from international organisations that have China as a member.
"There is only one China in the world and Taiwan is a part of China," Mr Zhao reiterated once again.
"The one-China principle is a basic norm governing international relations and the common consensus of the international community.
"Under the one-China principle, Taiwan has no right to participate in the activities of inter-governmental organisations such as the United Nations and its specialised agencies because such activities are limited to sovereign states."
Mr Zhao stated interference from some countries who support Taiwan would not have any impact on the one-China principle.
"It is inevitable that the Taiwan authorities will fail in its attempt to sneak into such an international conference. The degrading and disgraceful act by the Taiwan authorities has already been ridiculed by the international community."
But a US delegate said it is a long-standing practice that each member state can decide the composition of its delegation, and it should have been up to Tuvalu and Palau to decide whether to include people from Taiwan.
"No credential committee should have pressed them to remove those individuals from their delegations," the US delegate said.
Pacific islands continue to drive Taiwan message
Pacifc island nations have found themselves at the centre of a strategic struggle as China looks to expand its control over the region. Australia, which has traditionally supported Pacific island nations, has rejected Beijing's advancements which came in the shape of a sweeping security deal.
Tuvalu Foreign Minister Simon Kofe withdrew from the UN conference last week after China challenged the accreditation of three Taiwanese delegates included in Tuvalu's delegation.
Mr Kofe has made global headlines before after a striking image of him standing ankle-deep in the sea to illustrate that Tuvalu was "sinking" for his climate conference address.
On Friday, a representative from the tiny Pacific nation of Palau hit out at the United Nations over what it deemed a "violation of our sovereign rights".
"Ocean issues are global issues and we call on all of us to work together without discrimination," they said.
"The UN has excluded the 23 million people of Taiwan from the conversation."
On Monday, Taiwan's Ministry of Foreign Affairs thanked Palau for its support.
"Although we condemn China for bringing pressure on our Pacific allies Palau and Tuvalu to make changes to their list of delegates, Taiwan will continue to work with our partners and allies around the world to combat the pollution of our oceans and to make progress towards the #30by30 goal," it said in a statement.
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