Chongqing Tonghui Gas Co., Ltd. was established in 2007, with an expansion of 15 subsidiaries till 2022. The headquarter is located in Tongnan District, Chongqing. Our business covers the R&D, production, and sales of the food/industrial grade liquid CO2, food-grade CO2 filling vial, dry ice, food/electronic grade N2O, electronic special gases, and relevant products.
The annual output of liquid carbon dioxide is 1,100,000 tons, electronic grade N2O is up to 30,000 tons, high-purity and electronic grade germanium reach 2 tons, the output of high-quality gas, electronic grade gas, standard gas, mixed gas, and other special gases is over 30,000 cylinders and 400,000 gas cylinders are filled every year. We provide food-grade carbon dioxide for the market of carbonated beverages and high-purity electronic gases for the market of semiconductors, LED, LCD, and PV. We also have 60 special transport tankers for low-temperature liquid carbon dioxide and special vehicles for dangerous chemicals. 
Our products have been exported to many countries and regions, including South Asia, Europe, America, and the Middle East. Our production capacity is leading in the gas industry in West China, ranking the top in the country.

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