Xi's talks with King Salman resulted in the elevation of the current bilateral relationship to what was termed a "comprehensive strategic partnership." Both leaders appeared side-by-side at the King Abdullah Petroleum Studies and Research Center in Riyadh to remotely inaugurate the Yanbu Aramco Sinopec Refining Company (YASREF) oil refinery ( YASREF, February 9, 2016; Xinhua, January 21, 2016; Ministry of Foreign Affairs, January 20, 2016). Located in Yanbu Industrial City along the Red Sea in the kingdom's al-Medina Province, YASREF represents a joint venture between the Saudi Arabian Oil Company (Aramco) and the China Petroleum and Chemical Corporation (Sinopec). Initiated in 2012 at an initial investment of $10 billion, the effort represents China's single-largest investment in Saudi Arabia.