Saudi Crown Prince Mohammed bin Salman cemented a $10 billion deal for a refining and petrochemical complex in China on Friday, meeting Chinese President Xi Jinping who urged joint efforts to counter extremism and terror, Reuters reported.

Aramco agreed to form a joint venture with Chinese defence conglomerate Norinco to develop a refining and petrochemical complex in the northeastern Chinese city of Panjin, saying the project was worth more than $10 billion.

The partners would form a company called Huajin Aramco Petrochemical Co as part of a project that would include a 300,000-barrels per day (bpd) refinery with a 1.5-million-metric tonnes per year ethylene cracker, Aramco said.

Aramco will supply up to 70 percent of the crude feedstock for the complex, which is expected to start operations in 2024.