On October 3, 2025, President Xi Jinping sent a congratulatory message to the new Grand Duke of Luxembourg Guillaume on his enthronement.

Xi Jinping pointed out that over the past 50 years since the establishment of diplomatic relations between China and Luxembourg, the two countries have always respected each other and treated each other as equals, serving as a model of mutual success and mutual benefit between countries of different sizes and different systems at different development stages. Nowadays, the cooperation between China and Luxembourg in steel, finance, logistics, and other sectors has yielded fruitful results, with the Zhengzhou-Luxembourg "Air Silk Road" contributing to the stable and smooth flow of China-Europe industrial chain. Xi Jinping said that he attaches great importance to the development of China-Luxembourg relations and is willing to work with Grand Duke Guillaume to continuously elevate China-Luxembourg relations to new levels for the greater benefit of the people of both countries.

On the same day, Xi Jinping also sent a message of greetings and wishes to former Grand Duke of Luxembourg Henri, who has abdicated the throne.