Dalian Petrochemical Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a state-owned specialized engineering technology service enterprise approved by the former Ministry of Chemical Industry and currently supervised by the State-owned Assets Supervision and Administration Commission of Dalian Municipal Government. The company has long focused on full-process engineering services in the petroleum, chemical, energy, and environmental protection sectors. It is categorized as an enterprise in the “high-end equipment manufacturing industry” and “integration of modern services,” both of which are prioritized for development by the Chinese government. The company possesses strong regional influence in niche areas including petrochemical engineering consulting and design, EPC general contracting, and intelligent operation & maintenance services. Its core business covers technical domains such as energy-saving optimization for fluid catalytic cracking units, highly efficient separation of sulfur-containing wastewater steam, and intelligent diagnostics for BOG compressor systems at LNG receiving terminals. Its service portfolio targets typical scenarios including large-scale integrated refining & petrochemical projects, supporting infrastructure for green petrochemical bases, and overseas refinery upgrading & retrofitting projects. Clients include key national projects such as PetroChina Liaoyang Petrochemical Company, Hengli Petrochemical (Dalian) Co., Ltd., and Wanhua Chemical Yantai Industrial Park.  

The company holds Class-A qualifications for engineering design in the chemical, petrochemical, and pharmaceutical industries; Class-A credit rating for engineering consulting firms (petrochemical category); Special Equipment Pressure Pipeline Design Licenses (Categories GA/GC); Class-II qualification for general contracting of petrochemical construction projects; and a Work Safety Production License. It is certified under the ISO 9001, ISO 14001, and ISO 45001 management systems, and completed its re-evaluation for the GB/T 19001–2016 standard in 2023. It hosts the Liaoning Provincial Enterprise Technology Center and has obtained 47 authorized patents (including 12 invention patents). It led the formulation of the Liaoning Provincial Local Standard “Guidelines for Construction of Intelligent Operation & Maintenance Platforms in Petrochemical Enterprises” and participated in drafting three industry standards, including “Design Code for Safety Instrumented Systems in Chemical Plants.”  

Over the past three years, the company has secured over RMB 2.86 billion in contract value for EPC and EPCM projects. Representative delivered projects include: the EPC general contracting of the wastewater treatment plant supporting the Dalian Xizhong Island Green Petrochemical Base (capacity: 45,000 tons/day); detailed design and complete supply of the flare system for Hengli Petrochemical’s Changxing Island Integrated Refining & Petrochemical Project; and process package localization adaptation and HAZOP analysis support for the Atirau Refinery in Kazakhstan. The company does not operate overseas subsidiaries but extends its technological services to Belt-and-Road Initiative countries—including Kazakhstan, Uzbekistan, and Vietnam—through cooperative partnerships with domestic general contractors. In 2024, international business revenue accounted for approximately 6.3% of total revenue. The company offers specialized technical services including technology licensing combined with engineering implementation, joint-bid participation, localized adaptation, and dedicated services such as HAZOP/LOPA analysis.