According to British broadcasting cooperation(BBC)Chinese language also known as mandarin and catonise is spoken by an estimated 870million and 70million people respectively.
Chinese people have been living in UK for about 50 years now,especially those from hong kong,after the china cultural revolution many refugees migrated to UK as a result of unemployment,many people cannot gets jobs to do especially those with little formal education.most of the immigrant settle in Liverpool,Cardiff and Bristol.majority of the immigrant indulge in catering business.

Chinese prime minister Wen Jiabao And UK prime minister David Cameron
the number of the Chinese in the UK has increased massively in recent years as a result of amendment in the Chinese policy.Moreover due to the increasing reliance of UK universities on international student has increased the number of Chinese in the UK.Presently there are about 300.000 Chinese in UK,in recent years the important Chinese communities are mostly living in Birmingham,Liverpool,London,Manchester and Newcastle.According to a survey conducted in 2000 catoons is the eleventh most spoken language in the
UK.Their is also a Chinese radio station in UK and newspapers.as cited in dim sum website.
REFERENCE;www.bbc.co.uk/voices/multilingual