Chinese premier Wen Jiabao has rounded off his three-day tour of the UK by meeting the Queen.
Chinese premier Wen Jiabao meets the Queen
He held a 20-minute private discussion with the Queen before meeting top executives from British companies investing in China.
Mr Wen's trip is part of an 11-day European tour and it is his first visit to the UK since he came to office in March 2003.
His tour has already caused protests outside the Chinese Embassy.
About 150 demonstrators from the Free Tibet and Falun Gong movement gathered on Monday to protest against China's record on human rights and its occupation of Tibet.
The Chinese leader also met Tony Blair for a Downing Street press conference where they cemented relations between the two countries.
Then, Mr Wen remarked that 17 June would mark the 50th anniversary of diplomatic relations between the UK and the People's Republic of China.
He said a good relationship between the two countries would last "as long as we continue to respect each other and treat each other as equals".