Xi Jinping published a signed article titled, "Work Together for a Bright Future for China-Iran Relations." It appeared in the Iranian newspaper Iran on January 21, 2016, during his state visit to the country.
In his article, Xi said, "Economically, our bilateral trade jumped from tens of millions of U.S. dollars in the 1970s to 51.8 billion dollars in 2014. China has been Iran’s largest trading partner for six years in a row."
"I think, the cooperation between China and Iran under the framework of the ‘One Belt, One Road’ Initiative can focus on the following areas:
"- Pursue win-win outcomes and common prosperity. China has considerable strength in capital, technologies, equipment, and other areas. Iran has rich resources, an ample labor force, and a substantial market potential. The resource endowments and comparative advantages of China and Iran are highly complementary. The implementation of the JCPOA [the Joint Comprehensive Plan of Action, which includes China, France, Germany, Russia, the United Kingdom and the United States] will bring new opportunities for the growth of China-Iran relations.
Source: Xinhua, January 21, 2016
http://news.xinhuanet.com/world/2016-01/21/c_1117854563.htm