China would like to make joint efforts with the UK to push bilateral relations to develop in a healthy and steady way in the new era, thus bringing happiness to the people of both sides and peace to the world, Xi said.

May said that in 2015, the "golden era" of United Kingdom-China relations was established when Xi made a successful state visit to the UK.

"Since then, I think we have indeed achieved a great deal in enhancing the links between our two countries, both in terms of people links but also trading links," May said.

The Belt and Road Initiative proposed by Xi has far-reaching influence all over the world, May said, adding that Britain would like to cooperate with China on jointly building the Belt and Road.

Britain supports free trade and would like to enhance practical cooperation with China in trade, investment, science and technology, environment, culture and the internet, she said.

May welcomed China's investment in the UK, saying that the trade links between the two countries are growing.

"I have been pleased to bring a very large business delegation here who had a very successful visit," she said. May has been accompanied by leaders of over 50 British business and commercial organizations.

Calling both countries significant players on the world stage, May said that there are global challenges faced by both and "there would be areas on which we can work together".

May arrived in Beijing on Wednesday and took part in the China-Britain annual meeting between heads of government with Premier Li Keqiang at the Great Hall of the People in downtown Beijing.

China and Britain signed a dozen deals in areas including trade, finance, healthcare and smart city technology, pledging to further promote the "golden era" strategic partnership on Wednesday.