This undated photo shows the Taipei 101 skyscraper in Taipei, Southeast China's Taiwan. (PHOTO / XINHUA)

BEIJING – China on Friday launched a series of countermeasures against individuals and institutes engaged in activities violating the one-China principle and supporting "Taiwan independence".

The Taiwan Work Office of the Communist Party of China Central Committee authorized its spokesperson on Friday to announce sanctions against Hsiao Bi-khim, a die-hard "Taiwan independence" separatist who is now the representative of the island's secession-desiring Democratic Progressive Party authorities in the United States.

The sanctions ban Hsiao and her family from entering the mainland and the Hong Kong and Macao special administrative regions, and prohibit Hsiao's sponsors and affiliated enterprises from cooperating with mainland organizations and individuals.

Depending on foreign influence and seeking "independence" by relying on the US, Hsiao deliberately provoked confrontations between the two sides of the Taiwan Straits and wantonly undermined peace and stability across the Straits, further exposing her stubborn nature of seeking "independence", said the spokesperson.

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The mainland could take all other necessary punitive measures to hold her accountable in accordance with the law, said the spokesperson.

History has proved and will continue to prove that "Taiwan independence" is a dead end, and the die-hard "Taiwan independence" separatists who rely on the willful provocation of external forces will surely fail, said the spokesperson.

On the same day, the Taiwan Affairs Office of the State Council announced the decision to take punitive measures against Taiwan's Prospect Foundation and the Council of Asian Liberals and Democrats.

The leaders of the two organizations are banned from entering the mainland and the Hong Kong and Macao special administrative regions. Organizations and individuals on the mainland are prohibited cooperating with the two organizations and their leaders, according to the office.

Zhu Fenglian, a spokesperson for the office, said that under the instigation of the Democratic Progressive Party, and under the guise of "academic exchanges" and "seminars", the two organizations used the pretext of democracy, freedom and cooperation to peddle the idea of "Taiwan independence" in the international arena.

The two organizations are trying their best to approach, attract and support anti-China forces, creating incidents that violate the one-China principle, and expanding Taiwan's so-called "international space", Zhu added.

In addition, the Foreign Ministry issued a statement on Friday on countermeasures against the US-based Hudson Institute and the Ronald Reagan Presidential Library and their leaders for providing platforms and convenience for Tsai Ing-wen to engage in "Taiwan independence" separatist activities in the US.

Despite China's repeated representations and firm opposition, the US insisted on allowing Tsai to "transit" through the US and make a "sneaky" visit to the country to engage in political activities from March 29 to 31 and April 4 to 6, said the statement.

The Hudson Institute and the Ronald Reagan Presidential Library provided the platforms and convenience for Tsai's separatist activities, which seriously violates the one-China principle and the three China-US joint communiques and severely undermines China's sovereignty and territorial integrity, it said.

China strictly restricts its institutions of higher learning, organizations and individuals from having transactions, exchanges and cooperation and other activities with the Hudson Institute and the Ronald Reagan Presidential Library.

The Hudson Institute's Board of Trustees Chair Sarah May Stern and its President and CEO John P. Walters, and the Ronald Reagan Presidential Foundation's former executive director John Heubusch and its chief administrative officer Joanne M. Drake are also included in the list of countermeasures, according to the ministry.

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China will freeze these four persons' movable properties, real properties and other kinds of property in its territory and prohibit organizations and individuals within Chinese territory from engaging in relevant transactions, cooperation and other activities with them.

In addition, China shall not issue visas to them and not allow them to enter China. The countermeasures came into force from Friday.

Amid strong protests in Taiwan and in the US, Tsai visited countries in Central America from March 29 to April 7, with stops in New York and Los Angeles.

US Speaker of the House Kevin McCarthy met with Tsai at the Ronald Reagan Presidential Library in California on Wednesday.