Xuwei New District
Inside the Lianyungang petrochemical industry base in Jiangsu Province.

Hongjing produces EVA resins for photovoltaic encapsulation, wire and cable, foam, adhesives and polymer modification.
Public information reported by Lianyungang in March 2025.
Hongjing is a Shenghong Holding subsidiary located in the Petrochemical Industry Park of Xuwei New District, Lianyungang.
The company was established in 2021. Its disclosed project plan covers three 200,000-tonne-per-year tubular EVA lines and related high-end copolymer materials.
Inside the Lianyungang petrochemical industry base in Jiangsu Province.
Publicly reported total planned capacity of 600,000 tonnes per year.
High-end copolymer work includes EBA for high-voltage cable shielding materials.
Ethylene–vinyl acetate copolymer
The portfolio spans multiple VA-content and melt-index references. Final selection depends on process, formulation and finished-product requirements.

A key input when screening softness, polarity and compatibility.
Used with process conditions to narrow suitable flow characteristics.
Qualification should use the latest TDS, samples and application trials.
VA content and melt-index references are shown for initial grade screening.
| Grade | VA content | Melt index |
|---|---|---|
| V1815 | 18 wt.% | 15 g/10 min |
| V1818 | 18 wt.% | 18 g/10 min |
| V2815 | 28 wt.% | 15 g/10 min |
| V2825 | 28 wt.% | 25 g/10 min |
| V3312 | 33 wt.% | 12 g/10 min |
| V3315 | 33 wt.% | 15 g/10 min |
| V3320 | 33 wt.% | 20 g/10 min |
| V3345 | 33 wt.% | 45 g/10 min |
| V5120J | 18 wt.% | 3 g/10 min |
| V6020M | 28 wt.% | 6 g/10 min |
Each route places different demands on grade selection, formulation and processing.
EVA is widely used as an encapsulation layer around solar cells, helping protect the electrical core while transmitting light into the module.
PUBLIC PROJECT INFORMATION
Lianyungang reported that Unit I entered production in October 2024, Unit II reached trial production in March 2025, and Unit III was in final installation at that reporting date.
The Shenghong chemical new-materials project began construction in Xuwei New District.
The first 200,000-tonne-per-year tubular EVA line entered production.
The second line reached its reported trial-production milestone.
SALES & PRODUCT INFORMATION
Petrochemical Industry Park
Lianyungang City, Jiangsu
China