President Juan Carlos Varela said on Twitter that his government has received official confirmation from Beijing about Xi's visit.

Xi is to meet Varela on December 3, and the two leaders will witness the signing of about 20 agreements in a range of sectors from science to infrastructure, the statement said.

Varela already met Xi in Beijing late last year after the change in diplomatic recognition.

In August, El Salvador also switched diplomatic allegiance to Taiwan, as did the Dominican Republic in May under a campaign by Beijing to split democratic Taiwan from its few remaining diplomatic allies.

China and Taiwan have been governed separately since the end of a civil war on the mainland in 1949, but Beijing sees the island as part of its territory to be brought back into the fold.

Beijing has tried to depict the changes in diplomatic allegiance as economic and not motivated by any desire to undermine Taiwan.

Only 17 countries remain in Taiwan's diplomatic circle as the island struggles to fend off Beijing's growing influence around the globe.

Central America has been a bastion for Taiwan, with Belize, Guatemala, Honduras and Nicaragua still recognizing Taipei rather than Beijing, which has used its economic muscle and promises of investment to entice governments.

China is the second major user of the Panama Canal behind the United States.