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Premium Specialty Chemicals & Epoxy Resin Systems

Heze Yonghui Composite Materials Co., Ltd. – ISO-certified manufacturer of high-performance amine hardeners and epoxy systems since 2008. Trusted by industries worldwide for purity, consistency, and technical excellence.

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200M+

Annual Turnover (CNY)

100+

Employees & Experts

20+

Countries Served

About Yonghui Composite

Heze Yonghui Composite Materials Co., Ltd., established in 2008, is located in Dongming County, Heze City, known as the Peony Capital of China. The company occupies an area of over 90 mu, with an annual turnover exceeding 200 million yuan and total assets of 160 million yuan.

Currently, the company employs over 100 staff, including 2 postdoctoral researchers and 2 professor-level senior engineers, alongside a professional R&D team of more than 10 members. We are committed to innovation, quality, and customer-driven solutions in the specialty chemicals sector.

  • ISO9001:2008 & ISO9001:2016 Certified
  • EU REACH Certified
  • Exported to 20+ Countries
  • R&D Team with Postdoctoral Experts
Yonghui Factory

Why Choose Us

We combine advanced research, strict quality control, and global compliance to deliver unmatched chemical solutions.

Quality Certified

ISO9001:2008, ISO9001:2016, and EU REACH certified for consistent, safe, and reliable chemical production.

Expert Team

Led by postdoctoral researchers and senior engineers, our R&D team ensures cutting-edge innovation.

Global Reach

Products exported to North America, Western Europe, the Middle East, and Southeast Asia.

Customer Focus

Tailored solutions and responsive service based on actual industrial needs.

Our Products

High-purity specialty chemicals and epoxy resin systems for advanced industrial applications.

DDM (Diaminodiphenylmethane)

DDM (Diaminodiphenylmethane)

  • CAS: 101-77-9
  • UN: 2651
  • Purity: ≥99.5%
  • Appearance: Pale yellow solid
  • Content: 65%-75% 4,4'-Methylenedianiline
4,4-Diaminodicyclohexylmethane (PACM)

4,4-Diaminodicyclohexylmethane (PACM)

  • CAS: 1761-71-3
  • UN: 2735
  • Purity: ≥99.9%
  • Other Names: H12MDA, 4,4’-Bis(aminocyclohexyl)methane
MDA-60 (4,4-Methylenedianiline)

MDA-60 (4,4-Methylenedianiline)

  • Appearance: Pale yellow transparent liquid/semi-solid
  • Viscosity (40℃): 3,000–5,000 mPa·s
  • Ideal for epoxy systems requiring flexibility and durability.
3,3′-Dichlor-4,4′-diaminodiphenylmethane

3,3′-Dichlor-4,4′-diaminodiphenylmethane

  • CAS: 101-14-4
  • EC: 202-918-9
  • Molecular Formula: C13H12Cl2N2
  • Molecular Weight: 267.15
MTHPA

MTHPA

Methyltetrahydrophthalic anhydride – high-performance epoxy curing agent with excellent electrical properties and low volatility.

MOCA

MOCA

A widely used amine-based curing agent for polyurethane and epoxy systems, known for high mechanical strength and thermal stability.

MACM

MACM

4,4'-Methylenecyclohexylamine – a saturated aliphatic amine offering excellent UV resistance and color stability in cured resins.

Electronical Epoxy Resin

Electronical Epoxy Resin

High-purity epoxy systems designed for electronic encapsulation, offering superior dielectric strength and thermal conductivity.

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200M+

Annual Revenue (CNY)

160M

Total Assets (CNY)

90+

Mu Factory Area

10+

R&D Team Members

Frequently Asked Questions

What certifications does Yonghui Composite hold?

We are certified under ISO9001:2008, ISO9001:2016, and EU REACH, ensuring strict quality control and compliance with international standards.

Where are your products exported?

Our products are exported to over 20 countries across North America, Western Europe, the Middle East, and Southeast Asia.

Do you offer custom formulations?

Yes, our R&D team works closely with clients to develop tailored chemical solutions based on specific industrial requirements.

What is the purity level of your PACM product?

Our PACM (4,4-Diaminodicyclohexylmethane) has a purity of ≥99.9%, ensuring minimal impurities and optimal performance in epoxy systems.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to connect with our team.

Visit Official Website to Contact

Email: jessica.zhang@yonghuicomposite.com

Phone: +86 133 8530 9708

Alternate: +86 139 5407 4307

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