Saudi Aramco has hired Japan’s Sumitomo Mitsui Banking Corp (SMBC) and Riyad Bank to advise it on financing Amiral, a petrochemical project it plans to develop with France’s Total, sources familiar with the matter said.

The Saudi state-owned oil producer approached banks for the financing of the project, which is expected to be around $5 billion, late last year, sources told Reuters at the time.

Total declined to comment. Aramco, Riyad Bank and SMBC did not respond to requests for immediate comment.

Aramco, the world’s largest crude producer, plans to boost investment in refining and petrochemicals in a bid to cut reliance on crude.

Plans for the giant Amiral petrochemical complex in the Saudi city of Jubail were announced in April 2018.

The project - scheduled to start up in 2024 - will be located next to the Satorp refinery, which is also jointly owned and operated by Aramco and Total.

The companies said last year the facility would comprise a mixed-feed cracker with a capacity to produce 1.5 million tons a year of ethylene. It will also have other units producing high-value petrochemicals.