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Dalian Hongyuan Gas Co., Ltd.

2001-12-11
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Company Profile

Dalian Hongyuan Gas Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise specializing in the production, filling, storage, sales, and technical services of industrial gases. Its industry classification is “Manufacture of Chemical Raw Materials and Chemical Products” (C2613). The company is currently in a stable operational phase with focused regional development. Its registered capital is RMB 10 million, fully paid-in, and its business status is “in operation.”

The company’s primary products include oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, liquefied petroleum gas (LPG), mixed standard gases, and specialty electronic-grade gases. Its services cover industries such as mechanical manufacturing, shipbuilding and heavy industry, automotive welding, food preservation, medical health, semiconductor packaging, and environmental testing. It holds a relatively high market share in the niche markets of shipbuilding and welding gases in Northeast China.

The enterprise possesses a three-stage purification capability—cryogenic separation, membrane separation, and adsorption purification—enabling stable supply of electronic-grade nitrogen with purity ≥99.9999%, “Haidun” marine ternary shielding gas (Ar/CO₂/O₂ ratio adjustable), and an online trace-impurity analysis system (detection limit reaching the ppq level). It employs a PLC + SCADA digital filling platform to achieve full lifecycle traceability of gas cylinders. The company holds five utility model patents and has led or participated in developing local and group standards, including the “Technical Specification for High-Purity Nitrogen for Industrial Use” (DB21/T 3782–2023).

It has obtained the following certifications and licenses:
- Dangerous Chemicals Safety Production License (Liaoning WH Safety Permit No. [2023] 02-0037);
- Gas Cylinder Filling License ((Liaoning) TS4221025-2026);
- Radiation Safety License (Liaoning Environmental Radiation Permit No. [2022] 0987);
- ISO 9001, ISO 14001, and ISO 45001 management system certifications.

Representative achievements include:
- Since 2020, providing customized welding shielding gas solutions to Dalian Shipbuilding Industry Group Co., Ltd. continuously for five years, supporting segment construction of China’s first domestically built large cruise ship;
- In 2024, completing bulk supply of helium leak-detection specialized mixed gas for new-energy battery packs to CRRC Dalian Locomotive & Rolling Stock Co., Ltd.;
- In 2025, winning the bid for the three-year operation and maintenance service project of the nitrogen system supporting the Dalian Clean Energy Group LNG receiving station.

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