Suyou Trading Co., Ltd.
Started with plastics trading.
About
Chongqing Sumi New Materials Co., Ltd. · Standard grades and custom compounds. We develop and supply modified nylon — glass-fiber reinforced, mineral-filled, toughened, flame-retardant, cold-resistant and weather-resistant — with color and performance customization on request.
Company History
From plastics trading to modified-nylon manufacturing. The companies below were related stages of development — not a simple rename.
Changrongshun Plastics Co., Ltd.
Continued plastics trading and plastics business.
Chongqing Sumi New Materials Co., Ltd.
Established to focus on modified PA6/PA66 R&D, production and sales.
Five imported twin-screw lines, with stated capacity of 3,000+ tonnes of modified nylon per year. Core business: standard modified nylon and color/performance customization; injection molding support available as an add-on. Quotation entity: Chongqing Sumi New Materials Co., Ltd.
Quality & Certifications
Certified to ISO 9001:2015 / GB/T 19001-2016. Scope: Manufacture of plastic granule products. All product grades have undergone SGS environmental testing, meet environmental requirements, and corresponding reports are available.
ISO 9001 Quality Management System
Certificate No. 111826Q00037R000 · Valid: 2026-05-18 to 2029-05-17
Test Equipment
High/low-temperature testers, universal testing machines, MFR testers, microscopes, moisture meters, density meters, precision balances, horizontal-vertical burning testers, glow-wire testers and pendulum impact testers.
Customization
Core: modified nylon (standard + custom color/performance)
Contact
One set of reception channels for domestic and overseas inquiries. Click or copy to start; you confirm before sending.
Phone (1)
+86 18008352482
Phone (2)
+86 13032399312
WeChat
+86 18008352482
Mobile-number search is enabled
WhatsApp
+8618008352482
Email
sumiplas@163.com
WeChat
WhatsApp
Douyin · xinghua35528Official Douyin account — scan or search to follow：xinghua35528
Call or message us with your requirements and we will get back to you.