Kingfa Unveils Bio-Based Home-Compostable PBS Coating at CHINAPLAS 2026
Kingfa Showcases Innovation Under “Shape · Circular · Invent” Theme
On April 21, 2026, the 38th International Exhibition on Plastics and Rubber Industries (CHINAPLAS 2026) opened at the National Exhibition and Convention Center in Shanghai. Kingfa, a global leader in advanced materials, presented its latest innovations under the theme “Shape · Circular · Invent”, showcasing strategic advancements across three domains: enabling quality living, accelerating low-carbon transition, and advancing frontier technologies.
The headline announcement was the introduction of an innovative bio-based and home-compostable PBS (polybutylene succinate) extrusion coating material — a significant advance in sustainable paper packaging.
Bio-Based PBS Extrusion Coating
The new PBS coating material addresses a critical challenge in paper packaging: replacing fossil-based polyethylene (PE) coatings on paper cups, food containers, and barrier packaging with a drop-in bio-based alternative that is both industrial and home-compostable.
Key Properties
| Property | Kingfa PBS Coating | Conventional PE Coating |
|---|---|---|
| Bio-based content | High (bio-based succinic acid) | 0% |
| Home compostable | Yes | No |
| Industrial compostable | Yes (EN 13432) | No |
| Coating weight | Reduced | Baseline |
| Processing speed | High-speed compatible | Baseline |
| Temperature resistance | High and low | High only |
| Oil resistance | Excellent | Good |
| Surface tension adaptability | Excellent | Standard |
The material offers reduced coating weight, high-speed processing compatibility, resistance to high and low temperatures, strong oil resistance, and excellent surface tension adaptability — making it a practical drop-in replacement for PE coatings in existing paper packaging manufacturing lines.
Broader CHINAPLAS Showcase
Beyond the PBS coating innovation, Kingfa presented solutions spanning multiple sectors:
Low-Carbon and Circular Solutions
- Recycled HDPE from post-consumer waste, processed to food-contact quality standards
- End-to-end recycling solutions covering collection, sorting, chemical recycling, and recycled-content manufacturing
- Lifecycle carbon footprint calculation and certification services for downstream partners
Bio-Based Materials Portfolio
- ECOPOND biodegradable compounds for flexible and rigid packaging
- PGA (polyglycolic acid) blends with PLA for fast-degradation single-use products
- Bio-based polyolefins via mass-balance approach
Advanced Engineering Materials
- High-temperature nylon for new energy vehicles
- LCP (liquid crystal polymer) for 5G/6G electronics
- Flame-retardant specialty compounds for smart home devices
Market Significance
The PBS coating material launch is strategically important for several reasons:
Paper packaging boom — The global paper cup and container market is growing rapidly as brands shift away from single-use plastics. However, most paper cups are lined with PE, making them non-compostable and difficult to recycle. A home-compostable coating solves this end-of-life problem.
Home compostability — Unlike industrial-compostable-only materials (which require dedicated facilities at 58°C), Kingfa’s PBS coating degrades at ambient temperatures in home composting conditions, broadening the end-of-life options available to consumers.
EU regulatory alignment — The EU Packaging and Packaging Waste Regulation (PPWR), applying from August 2026, sets minimum recycled and bio-based content requirements that favour compostable paper packaging solutions.
China’s plastic pollution control — Domestic regulations continue to tighten single-use plastic restrictions, creating demand for compostable alternatives in food service.
About Kingfa
Kingfa Sci. & Tech. Co., Ltd. (SSE: 600143) is Asia’s largest modified plastics company, operating 64 subsidiaries worldwide with H1 2025 revenue of RMB 31.6 billion. The company’s ECOPOND biodegradable compounds and expanding recycling operations make it a key player in the sustainable materials transition.