The core businesses of the Group are the trading of crude oil, petroleum products and petrochemicals.

In 2000, Strong Petrochemical (HK), now a subsidiary of the Group, started in the business of trading of crude oil. Over the next eight years, the business expanded into the trading of petroleum products and petrochemicals. In 2004, Strong Petrochemical (Macao), also a subsidiary of the Group was established to address the substantial growth of this business. In 2007, the Group started its Nantong Project and Tianjin Project, a new business providing petrochemical storage services in the PRC. In 2013, Strong Petroleum (Singapore), a subsidiary of the Group, started its trade in crude oil and petroleum products. In 2014, the Group started the business of investing in crude oil and oil products related derivative products and securities. In 2017, Strong Petroleum (Singapore) started trading coal.