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- About Tonghui
Chongqing Tonghui Gas Co., Ltd.
Chongqing Tonghui Gas Co., Ltd. was established in 2007 and is headquartered in the Tongnan High-tech Zone of Chongqing Municipality. The company specializes in the research, development, production, sales, and storage & transportation of specialty gases such as electronic-grade nitrous oxide, ultra-pure ammonia for electronics, germane for electronics, phosphine for electronics, and carbon dioxide for electronics; food-grade nitrous oxide, carbon dioxide, and nitrogen—used as food additives; medical-grade oxygen—used in medical applications; as well as bulk gases (oxygen, nitrogen, and argon) and related products. The company aims to be a technology-driven, resource-efficient, and environmentally friendly enterprise that makes comprehensive use of its resources.
Leveraging advanced production technologies, the company provides high-purity electronic gases for markets including semiconductors, panels, photovoltaics, and optoelectronics; high-quality food additives for the food and beverage industry; and medical gases for the healthcare market. The company’s products now serve customers across China as well as numerous countries and regions worldwide.
China's gas industry
Subsidiary company
Annual production of liquid carbon dioxide
Annual production of specialty gases
Annual production of high-purity, electronic-grade germane
Annual production of ultra-pure ammonia
Annual production of electronic-grade nitrous oxide (N2O)
Annual cylinder filling volume
Annual dry ice production
Annual phosphine production
Daily storage capacity for cryogenic liquid carbon dioxide
Hazardous chemical transport vehicles
- Social responsibility
Stay true to our original aspiration, give back to society, and give back to the people.
The company actively fulfills its social responsibilities, participates in charitable and public welfare endeavors to the best of its ability, and uses the fruits of its corporate development to give back to society and repay the people.
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Carbon Emission Verification Report
2025-06-05
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