In March 2011, a five-member team of technical experts and procurement managers from Gazprom came to the production base of Xi'an KOSUN Machinery Co., Ltd. in China. Russian customers visted the manufacturing factory, had business meeting and made order with KOSUN for 8 sets of solid control system supporting 3000 meters drilling rigs.
 

Gazprom is the world's largest natural gas company, formerly known as State Gas Consortium of Russia, which is also Russia' s and the world’ s largest natural gas producer. At 2010, its reserves 49. 27 trillion cubic meters of natural gas and natural gas production was 559. 5 billion cubic meters, ranking as the world' s top ten gas producers. Gazprom plays prominent role in the Russian economy, honored as the pioneer by Russian mass media, and contributed 8% of Russia' s gross national industrial production, ensure 25% of the national budget, control of Russia' s 65%, that is, 20% of world of natural gas reserves.
 

Russian customers made a special trip to China with contract agreement about drilling rig equipments which contains mud solids control system, generator unit, air compressor unit, well standardized field circuit, MCC room and other external support system. The three-year' s contract marks that KOSUN has become a major provider of drilling mud control system in Russian regions. The Russian customers examined the equipments carefully in the factory of KOSUN, asked questions about quality control, product design and other related issues, and had a deep discussion with KOSUN' s leadership and technical staff.