A diplomatic note from Beijing describes the measures as a warning 

Foreign Minister Francis Fonseca says a diplomatic note from China arrived today, following Beijing’s announcement of sanctions against him on Monday.  The communication, attributed to a spokesperson for China’s Embassy in Jamaica, describes the sanctions as a warning and a deterrent. It accuses certain politicians of supporting Taiwan’s pursuit of independence and hosting representatives whom Beijing regards as separatists. China argues that those engagements interfere in its internal affairs.  Fonseca addressed the communication at today’s press conference and offered his assessment of what may have prompted Beijing to take the action.

Francis Fonseca, Minister of Foreign Affairs: “Clearly, we have you know, the Prime Minister, as I said, delivered a very strong, forceful statement at the UN General Assembly speaking in support of Taiwan and their right to self-determination. And then, as you said most recently we had the visit of the Foreign Minister. So you know I think in their note, because they sent a note we received today, a note from their embassy in Jamaica to our protocol office here in Belize it talked about that, you know, it referenced that visit and our receiving the foreign minister. So, you know but as I said I don’t want to get into their, what led them to that decision.”

The note outlines the restrictions against Fonseca, including an asset freeze, a prohibition on Chinese individuals and organisations conducting transactions or cooperating with him, and an entry ban covering mainland China, Hong Kong and Macao.  It also states that the measures will not affect other Belizeans wishing to travel to China.  Belize’s Government has rejected the sanctions and maintains that the country has the sovereign right to choose its diplomatic partners, including Taiwan.