Since China opened to the outside world, Rizhao has experienced steady increase in international exchanges. The external cooperation and exchanges are enjoying fast growth and the international links of Rizhao have covered more than 100 countries and regions. Rizhao attaches great importance to developing the friendly relations with cities around the world. It has established sister-city relations with Trabzon of Turkey, Gisborne District of New Zealand, Muroran of Japan and Coatzacoalcos of Mexico, and promoted friendly relations with more than 20 cities in Israel, Italy, South Korea, Japan, Germany, USA, Canada, Netherlands and Australia etc.