Dalian Tongchuang Gas Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise specializing in the production, filling, sales, and application technical services of industrial gases. It operates within the specialty gas subsector of the chemical raw materials and chemical products manufacturing industry. Established in 2003, the company has maintained stable operations continuously since inception. Its registered capital amounts to RMB 10 million. The company’s registration status is “in operation,” with no record of operational anomalies or administrative penalties.  

The company’s primary business involves bottled supply of conventional industrial gases, including oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, and liquefied petroleum gas (LPG). It also provides bottling and customized services for high-purity electronic specialty gases (e.g., high-purity nitrogen, high-purity argon). Typical application scenarios span local manufacturing industry chain segments, such as equipment manufacturing, shipbuilding and repair, automotive welding, food preservation, medical health, and semiconductor supporting industries.  

Its core capabilities focus on full-process safety management of hazardous chemicals, online gas purity monitoring, standardized cylinder filling and periodic inspection (in accordance with TSG 23-2021), possession of an in-house cylinder inspection and testing laboratory, and capability for optimizing stable gas supply processes. These enable rapid response and bulk bottled delivery to small- and medium-sized manufacturing enterprises across Northeast China.  

The company holds the following certifications and licenses:  
- “Safety Production License for Hazardous Chemicals” (Liaoning WH Safety Permit No. [2022] 02-0037);  
- “Cylinder Filling License” ((Liaoning) TS4221025-2026);  
- ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M);  
- National High-Tech Enterprise Certification (GR202121000286), awarded in 2021 with a validity period of three years.  

Representative performance includes providing long-term gas supply services to key local enterprises such as Dalian Huarui Heavy Industry Co., Ltd. and CSSC Dalian Shipbuilding Industry Co., Ltd., and participating in the construction of gas supply security nodes within the Dalian Bay Linhai Equipment Manufacturing Industry Agglomeration Zone. Project deliveries are predominantly regional bottled-gas supply arrangements; specific contract values and facility scales have not been disclosed.  

Publicly available information indicates no involvement in overseas projects, export performance, overseas registered entities, or technological cooperation with international gas industry leaders such as Linde or Air Products. Its service scope is confined to Liaoning Province. Current collaboration models comprise targeted gas supply, customized bottling, and on-site technical support—excluding EPC general contracting, process package licensing, or cross-border engineering delivery.