Dalian Deta Hong Kong & China Gas Engineering Co., Ltd is located in the Jinpu New Area of Dalian City, Liaoning Province. It is a mixed-ownership professional engineering enterprise specializing in investment, construction, and operation of urban gas infrastructure, and falls under the Towngas Energy Investment System. The company possesses full-chain capabilities covering design, construction, supervision, intelligent retrofitting, and system integration for gas engineering projects, and is currently in a development stage characterized by stable operations and incremental asset renewal. Its core business focuses on urban and town gas pipeline projects (including medium-pressure and higher-pressure grades), LNG vaporization station construction, integrated gas systems for commercial and industrial users, intelligent upgrades of aging cast-iron pipelines, and deployment of remote monitoring platforms for gas facilities. Its service scope covers typical scenarios such as coal chemical industrial park gas supply infrastructure, on-site gas pressure regulation and metering systems for petrochemical enterprises, LNG emergency peak-shaving gas supply for coastal cultural-tourism zones, and comprehensive energy stations in pilot free trade zones. Core competencies include GA1/GB1/GC2-grade pressure pipeline installation (subject to supervisory review by the Liaoning Provincial Market Regulation Administration in 2025), general contracting for municipal and mechanical & electrical engineering construction, and Class-B specialized design qualification for urban and town gas engineering. Leveraging GIS+SCADA, the company implements digitalized pipeline network management and has scaled up application of its self-developed “Intelligent Temperature-Controlled Electrofusion Welding Process for PE Pipes” (Patent No.: ZL202321498201.6), achieving a first-time welding pass rate of 99.82%. The company holds the “Special Equipment Production License,” “Construction Enterprise Qualification Certificate,” “Engineering Design Qualification Certificate,” and “Work Safety Production License,” and is certified under ISO 9001, ISO 14001, and ISO 45001 management systems. By the end of 2025, it will have completed laying over 1,200 kilometers of medium-pressure and higher-pressure gas pipelines, serving more than 450,000 residential users and over 3,800 commercial and industrial users. Representative projects include the citywide gas-to-home project for the Sānshílǐbù Subdistrict in Jinpu New Area (2022–2024), the Dalian Pilot Free Trade Zone Comprehensive Energy Station EPC General Contracting Project (commissioned in 2023), and the LNG Emergency Peak-Shaving Gas Supply System for the Jīnshítān Coastal Cultural-Tourism Zone (completed in 2025). The company’s business covers the entire Jinpu New Area of Dalian City and, as the Northeast China Regional Engineering Support Center of Towngas Energy, provides technical transfer and joint construction services to cities including Anshan, Yingkou, and Dandong. Internationally, cooperation manifests through supply chain synergy within the Towngas Group and technical alignment with international standards such as EN 1775:2021 and API RP 1173, supporting various collaboration models including consortium bidding, EPC general contracting, and technology licensing coupled with localized engineering implementation.