XI'AN SITAN INSTRUMENTS Co., Ltd (hereinafter referred to as XI'AN SITAN) was established in 1991 and is located in Xi'an High-tech Industrial Development Zone. The registered capital is 17.35 million US dollar, and there are more than 600 employees. The company's existing plant covers an area of over 20, 000 square meters. It is a wholly-owned subsidiary of HAIMO Technology (Group) Co., Ltd., covering the business of oilfield logging instruments(exploration and production), oilfield digital intelligent enhanced oil recovery (EOR) system, oilfield geophysical logging instruments, oilfield services.

The parent company Haimo Technologies Group Corp. Is a multinational company engaged in oilfield equipment manufacturing, oilfield technical services and unconventional oil and gas exploration and development. Haimo Technologies was founded in 1994. In 2000, Haimo Technologies completed the overall change and established a company limited by shares. In 2010, Haimo Technologies went public in China, listed on the Shenzhen GEM stock exchange with ticker symbol: Haimo Technologies (stock code 300084). The parent company Haimo Technologies has 12 wholly-owned subsidiaries (shares), 1 holding subsidiary and 1 shareholding company. Haimo technologies has about one thousand employees and conducts business on a global scale. Our products and services are offered to 27 countries in the Middle East, North Africa, South Asia, Southeast Asia, South America, North America and Central Asia.

XI'AN SITAN has more than 20 years of experience in the development and production of downhole tools and instruments. The products mainly serve domestic and foreign major oil companies, oil service companies and geophysical companies. It is professional manufacturer with the most complete logging tools/products in the private business sector of China. XI'AN SITAN 's smart water layer separate injection tools have been assembled and used in tens of thousands of wells in various oilfields in China with absolute leading position; The newly developed full set of intelligent layer separate water injection, layer separate production, surface intelligent monitoring and formation oil and water distribution prediction system represents further leads the intelligent oilfield development trends. XI'AN SITAN is professional private logging service team in CHANGQING oilfield. It has advanced technology and special services in oilfield environmental protection and oilfield logging services.

XI'AN SITAN has more than 600 of which more than 120 employees have master's degrees, more than 80% of which are the bachelor's degree and more than 140 persons are directly engaged in technical development. XI'AN SITAN has a professional expert team with extensive experience in electromechanical design, nuclear physics, mathematics, mechanics, petroleum engineering and software development.

Over the years, XI'AN SITAN has established a management system that meets international and domestic standards for product quality, service quality, occupational health and safety and environmental protection (HSE).

XI'AN SITAN has 18 departments. Each department is strictly responsible for what they are working for, from R&D, manufacture to quality control. In order to guarantee the quality, SITAN invested more than 5 million US dollar to build a series of calibration and inspection system, including the gas calibration system, three phases calibration system, water flow calibration system, pressure & temperature calibration system, high & low voltage detection equipment, material analyzer, hardness tester, spring tension meter, vibration test stand, aging testing equipment and so on.