Overall progress at 31.69%! Multi-point synchronous construction underway for two EVA units at PetroChina Jilin Petrochemical

This 300,000 tons/year tubular and 100,000 tons/year autoclave EVA unit belongs to PetroChina Jilin Petrochemical's total investment of 33.9 billion yuan oil refining and chemical transformation and upgrading project. It is a landmark unit in the entire project for balancing ethylene feedstock and laying out high-end new materials. The entire transformation and upgrading project involves newly constructing 21 chemical units, with a core supporting 1.2 million tons/year ethylene unit, providing stable feedstock support for the EVA project.

EVA (ethylene-vinyl acetate copolymer) is a national strategic high- value-added chemical new material. The two units adopt differentiated processes to precisely match market needs: the 300,000 tons tubular unit focuses on large-scale photovoltaic-grade EVA resin, suitable for the mainstream production of photovoltaic module encapsulation films; the 100,000 tons autoclave unit specializes in high VA content specialty EVA, covering high-barrier fields such as high-end hot melt adhesives, coating materials, and medical packaging. After commissioning, a total EVA capacity of 400,000 tons/year will be formed, filling the gap of no large-scale EVA production base in the Northeast region. The company's total EVA capacity will enter the first tier in China, improving the independent supply capability of the Northeast's new energy and new material industrial chain.

Latest Construction Progress on July 1: 31.69% Overall Completed, Full-Process Construction Under Control

As of July 1, the on-site construction of the two EVA units is advancing steadily, with the project's comprehensive overall progress reaching 31.69%. Civil engineering, piping, and equipment installation sub-projects are all proceeding according to the construction plan, and the whole-process control of safety, quality, and schedule is fully under control.

Sub-project construction data has achieved breakthroughs at multiple points:

1. Piling Engineering: A total of 7,350 piles have been completed for the entire project, with an overall completion rate of 99%. Only a small amount of piling for supporting auxiliary buildings remains. The foundation construction is basically concluded, laying a solid foundation for the subsequent pouring of plant buildings and frame structures;

2. Underground Piping Network Engineering: The prefabrication of underground process pipelines for the project is 91.8% complete, and the on-site pipeline laying and installation progress has reached 83%. The main bodies of the main and branch underground pipe networks have taken shape, effectively guaranteeing the later connection of units and medium transportation;

3. Core Equipment Installation: The hoisting and positioning of 6 high-pressure and low-pressure key core equipment have been completed on-site, including vinyl acetate injection pumps, heat exchange equipment, and auxiliary equipment for high-pressure reactors. This marks the project's formal transition from a civil engineering-dominated phase to a full parallel critical phase of civil engineering finishing and equipment cross-installation.

Multi-point Synergistic Construction Critical Phase: Multi-unit Simultaneous Operation, Optimizing Construction Plans to Cope with Weather

The current construction site adopts a multi-region and multi-unit synergistic construction mode. The two main units of tubular EVA and autoclave EVA, as well as supporting warehouses, peroxide warehouses, circulating water units, and packaging workshops, are simultaneously carrying out civil engineering pouring, steel structure hoisting, and pipe gallery prefabrication operations. Dozens of tower cranes and construction machinery are operating in zones to maximize construction capacity release.

In response to the objective conditions of Jilin's rainy summer and limited outdoor construction, the project engineering management department has formulated a special rainy day construction plan: indoor prefabrication of pipelines and components operates uninterruptedly around the clock, seizing sunny windows to concentrate on outdoor steel structure hoisting and equipment lifting; simultaneously implementing the contractor's "five-in-one" on-site supervision mechanism, refining safety inspections, quality side-station supervision, and civilized construction control standards. Under the premise of guaranteeing construction safety and engineering quality, this offsets the impact of rainfall on the construction schedule and ensures that key nodes do not lag behind.

Project Industrial Value: Helping Enterprises Reduce Oil and Increase Chemicals, Ensuring Independent and Controllable Photovoltaic and High-end Manufacturing Materials

This EVA project is a key handle for Jilin Petrochemical to implement the strategy of "reducing oil and increasing chemicals, and high-end transformation". After commissioning, it will optimize the enterprise's product structure, reduce the output of low-end refined oil products, increase the proportion of high value-added new materials, drive the regional petrochemical industry to upgrade towards refinement and high-end development, and support Jilin in building a hundred-billion-level chemical industry cluster.

From the perspective of the national industrial chain, tubular photovoltaic-grade EVA can meet the production needs of encapsulation films for N-type and HJT high-efficiency photovoltaic modules. Autoclave specialty EVA alleviates the import dependence on domestic high-end coatings and hot melt adhesive products, significantly improving the self-sufficiency rate of domestic EVA new materials. It provides stable localized raw material supply for domestic photovoltaic new energy, high-end cables, medical devices, food packaging and other industries, strengthening the security and controllability of the new energy industry chain and supply chain.

According to the project planning schedule, the 300,000 tons tubular EVA unit is planned to complete mechanical completion in July 2027, and the 100,000 tons autoclave EVA unit will achieve mechanical completion in August 2027. After full construction and commissioning, it will become an important EVA new material production base for PetroChina in the northern region, continuously releasing industrial driving effects.