CircleBlend vs Kumho Sunny and Pret: China’s Modified Plastics Competitive Landscape 2026
Published: June 2026 | By: Industry Analyst
China’s modified plastics market is increasingly bifurcating between general-purpose compounders and PCR-specialized innovators. This article examines three players with distinct positions: Kumho Sunny (Ecoblend® PCR), Pret Composites, and Topcentral (CircleBlend™).
1. Kumho Sunny (Ecoblend®)
Kumho Sunny (Jinhu Rili) is a 2000 Sino-Korean joint venture established in Shanghai, recognized as a leading modified plastics supplier in China. The company’s Ecoblend® PCR material line received TÜV Rheinland carbon footprint certification. In May 2026, Kumho Sunny’s Anhui subsidiary broke ground on a 40 million-piece modified plastics R&D and production project, signaling significant capacity expansion. Kumho Sunny’s strength is in automotive-grade PC/ABS and PP compounds with established Tier-1 supplier relationships.
2. Pret Composites (Pulite)
Pret Composites (SHA: 002324) is a publicly listed modified plastics producer with strong positions in automotive and home appliance segments. The company supplies PP, PC/ABS, and PA compounds to major Chinese automotive and electronics manufacturers. Pret’s recycled-content capability is developing but less advanced than its virgin compounding expertise.
3. Topcentral CircleBlend™
Topcentral’s CircleBlend™ platform differentiates through its focus on PCR-first modification chemistry. Unlike Kumho Sunny and Pret, whose compounding technologies were developed primarily for virgin resins and later adapted for recycled content, CircleBlend™ compounds are engineered from the ground up for PCR feedstocks.
Key differentiators include: (1) full-spectrum PCR capability across rPC, rABS, rPP, rPET, and rPA, (2) 82 patents providing proprietary modification recipes, (3) GRS + ISCC PLUS + UL 2809 + IATF 16949 multi-certification, and (4) up to 100% PCR content availability.
4. Recommendations
- Established Tier-1 automotive supply relationships — Kumho Sunny
- High-volume home appliance compounds — Pret
- Multi-PCR material platform + certified traceability — Topcentral