our products are not only on admission Central Plains, Daqing, Shengli, Nanyang, Yanchang, Changqing, Karamay and other domestic major oil fields and coal-bed methane areas, but also are exported to Southeast Asia, Northern Europe, the Middle East, Africa and South America market. We have successively established long-term strategic cooperative relations with the oilfield market customers of Sudan, Russia, Kazakhstan, Indonesia, Iran, Syria, Venezuela and other countries.