The Chinese government issued a timetable for its program to upgrade fuel quality in early February 2013, with a strict standard to be promoted nationwide before 2017. The country will issue the “5th-phase” standard for automobile petrol, with sulfur content within 10 ppm (parts per million), before the end of the year with a grace period before the The Chinese government issued a timetable for its program to upgrade fuel quality in early February 2013, with a strict standard to be promoted nationwide before 2017. The country will issue the “5th-phase” standard for automobile petrol, with sulfur content within 10 ppm (parts per million), before the end of the year with a grace period before the