US sanctions targeting Iran's crude oil exports are influencing procurement strategies within China's refining sector. Following measures that disrupted Iranian maritime crude shipments, Washington recently imposed sanctions on a Chinese payment system facilitating revenue from these oil sales.

This action has effectively curtailed the availability of lower-priced Iranian oil for Chinese buyers.

Consequently, China's largest state-owned refining entity, Sinopec, has begun adjusting its sourcing strategy in response to these developments.

As reported by Hellenic Shipping News Worldwide, the shift is leading Chinese refiners towards securing Russian crude, which typically commands a higher price point than the Iranian barrels they are now less able to access.