Britain and China pledged to promote London as a center for offshore use of Beijing's currency and cooperate in clean energy research and promoting trade as the UK prepares to leave the European Union.
The two sides agreed to promote international use of China's tightly controlled yuan and develop yuan-based business in London.
Chinese and British officials also agreed to look at ways to expand Britain's role in Beijing's "Belt and Road Initiative," a vast project aimed at expanding trade across Asia to Europe by building railways, ports and other infrastructure.