The 42,000-tonne cargo to be loaded at Yingkou port in northeast China is one of the refinery's few export shipments as it utilises fresh fuel quotas Beijing granted earlier this month for use by the end of 2020.

The cargo, of 10 parts per million sulfur content, is destined for the Philippines, said the source, who declined to be named because he's not authorised to speak to the media.

(Reporting by Chen Aizhu; Editing by Jacqueline Wong)