China says one China policy is the political foundation of bilateral ties with the United States and is non-negotiable.

China’s Foreign Ministry Spokesman Lu Kang made the remarks in response to U.S. President-elect Donald Trump’s statement that one China policy on Taiwan is up for negotiation and that he is not fully committed to it.

The spokesman said there is only one China in the world and Taiwan is inalienable part of it.

He urged the new US administration to realize sensitivity of Taiwan issue and abide by commitments made by previous U.S. Governments to the one China policy.