An increasing number of Chinese oil refineries are cooperating with Shell Global Solutions International BV （SGSI）, a division of the energy giant Royal Dutch Shell PLC, to lower the sulfur content in low-grade oil and achieve quicker returns. As Chinese demand for cleaner energy resources grows, energy players are exploring business opportunities to gain a share in the market. SGSI says its platform helps refineries to improve operational performance, revamp equipment, and meet growing governmental product specifications and the differing global and regional regulations on emissions.