SHANGHAI Mayor Yang Xiong met Bulgarian Prime Minister Boyko Borissov on Monday.

Yang said that Bulgaria and China have traditional friendship and the relationship between the two countries have entered a new historical period since the two countries set up comprehensive friendly cooperative partnership.

Yang said that Shanghai cherishes the traditional friendship with Bulgaria and is actively preparing to set up sister city ties with Sofia City and the Shanghai government hoped to further improve the friendly ties with Bulgaria in the fields such as economy, trade, science and technology as well as culture through cooperation and exchanges between Shanghai and its sister city-to-be Sofia.