Daqing Oilfield, a subsidiary of Petro-China, is a very large state holding enterprise established in 2000. It consists of 10 oil production plants, 13 branch companies and 6 holding sub-companies as well as a Overseas Company registered and set up in Kazakhstan.

Hofung Technology is a Dutch company with operations in China since 1992. Its business is marketing and sales of technology, design and equipment. Hofung employ highly qualified and motivated local employees to assist foreign partners in developing the Chinese market for their products and services. Through its long-term commitment to China, Hofung have become the strategic partner for many well-known multinational companies, both Chinese and foreign. In its field, Hofung Technology is a leading company in the transfer of technology to China.

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