Dalian Special Gases Co., Ltd is located in Dalian, in the southern tip of the Liaodong Peninsula, "the North Bright Pearl" reputation is known as the city of Dalian. DSG was founded in 1992, employees over 200 people.  In the spirit of "innovation, development; re-innovation and further development" DSG is devoted to the research and development of high purity gas, calibration gas and industrial gas mixture. DSG as a high-tech innovative enterprise, provides customers with total gas solution including gas R&D, gas manufacturing, gas delivery, technical support and E&I projects and its products are widely used in petrochemical industry, metallurgy, electronics, light source, scientific research, instrument and meter, environmental protection, medical treatment and so on.

Since establishing, Dalian Special Gases Co. Ltd has taken charge or participated in the formulation or modification of more than 10 national reference material standards, having undertaken a number of science and technology projects of city level and district level. Possessing more than 10 intellectual property rights, which are patents of utility models; having 100+ kinds of gas national certificates for the gradation of the certified Reference Materials. 

As a major manufacturer in China calibration gas market, Dalian Special Gases has customers nearly 10 thousands, covering all over of China mainland, except Tibet area. Together with subsidiaries, DSG manufactures 100,000 cylinders of calibration gas each year, it becomes the main supplier for petrochemical & coal chemical industries, covering over 70% market share in chemical segment.

Statistics on Dalian Special Gas




Intellectual Property Rights


National Reference Materials
Sales、Production and Quality Control

To strengthen management on sales, production and quality control, in the year of 2003, DSG developed and applied a new management system for calibration gas production. To improve R&D and analysis capability, DSG has invested millions of Yuan to introduce dozens of advanced analysis equipment abroad.

In 2016, based on experience and professional skill on calibration gas calculation, a self-developed software for calibration manufacturing was applied into actual production, this software obtained copyright by national copyright administration.

After years of technology research and development, a project named “Research on manufacturing and analysis for VOC calibration gas” has passed through various tests and improvement, after application this project will put another complexion on import.

Research Results turn back to Society

Dalian Special Gases always participates in gas-related social activities actively, it strive to put their research results into service of society. With sterling national reputation, general manager acts as Member of China National Chemical Reference Standards Expert Committee; Chief engineer as Deputy Director of the NCS Sample gas standards working group; Deputy Director of the National Gas Standards Commission Analysis Committee ; Expert member of the National Gas Standards Commission; ISO T158(Analysis group member).