China’s President Xi Jinping has pledged to contain any moves by Taiwan toward formal independence in his first public remarks on the issue after the Taiwan election in January.

Speaking to delegates to the annual meeting of the Chinese People’s Political Consultative Conference and the National People’s Congress, Xi said China won’t budge in its insistence that Taiwan recognize it is part of China, regardless of political changes on the island of 23 million.

“We will resolutely contain Taiwan independence secessionist activities in any form,” Xi was quoted as saying by the official Xinhua News Agency at their meeting Saturday. “We will safeguard the country’s sovereignty and territorial integrity, and never allow the historical tragedy of national secession to happen again.”

The election of Tsai Ing-wen as the new leader of Taiwan, along with a legislative majority for her Democratic Progressive Party, has thrown a question mark over the future of relations between the sides.

Tsai, who won’t be inaugurated until May, takes over for Kuomintang (KMT)’s President Ma Ying-jeou, who oversaw the signing of a series of agreements during his eight years in power establishing closer economic ties between the sides.

In his remarks, Xi reiterated China’s self-declared bottom line that Taiwan’s government must accept a 1992 formulation agreeing that Taiwan is part of China. Tsai has said she wants the status-quo of peace and stability between the sides, but has so far withheld her endorsement of the so-called ’92 consensus.

“Our policy toward Taiwan is clear and consistent, and it will not change along with the change in Taiwan’s political situation,” Xi was quoted as telling the delegates.

In his main policy address to the congress on Saturday, Premier Li Keqiang made no mention of Taiwan’s elections, but said China would stick to its major policies on Taiwan and wants to maintain “the peaceful growth of cross-strait relations and safeguard peace and stability in the Taiwan strait.”

Story by the Associated Press, CCTV, and Xinhua.

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