Updated at 6.30pm: Chief Secretary Donald Tsang Yam-kuen said on Friday he would work to ensure the applications of Hong Kong businessmen doing business in China would be processed quickly. Mr Tsang is on a trip to the cities of Shantou and Meizhou in Guangdong Province. The Chief Secretary is heading a delegation of businessmen - including small-and-medium-sized enterprises and representatives from foreign chambers of commerce. Speaking after attending the Meizhou-Hong Kong Trade and Investment Symposium in Meizhou on Friday, Mr Tsang said he had been encouraging businessmen to turn to mainland markets. 'I am here to open the door for businesses and for the public sector,' Mr Tsang said. 'I want to ensure that the procedures for dealing with their applications for joint ventures or investment will be processed quickly and speedily, and in accordance with the preferential treatment under Cepa,' he added. The trip aims to expand co-operation between Hong Kong and the rural part of Guangdong East. It also aims to encourage mainland enterprises to invest in Hong Kong. Mr Tsang said he also hoped Hong Kong businessmen could learn more about rural areas of Guangdong. Shantou is famous for its manufacturing industries. Some of its enterprises are now agents for world brands. Meizhou, however, has had a relatively slow economic development. It is abundant in cultural and natural resources.