Sinfeng acts as the trader to help the shipowners solicit marine bunker from renowned oil companies or bunker suppliers to supply to their ships at different ports. Its business network mainly covers ports in Singapore and Malaysia, as well as other major ports around the world. Leveraged on its extensive business network and professional management team, Sinfeng has good business relationship with internationally renowned oil companies, shipping companies and ship owners.

Double Rich is one of the major suppliers of the largest company in China specialising in the supplies of water and oil in the sea, namely China Marine Bunker (Petro China) Co., Ltd. Double Rich has a relatively wide customer base and sales network in the industry and has established extensive and good business partnership with renowned oil companies, shipping companies and ship owners around the world.