Who Are the Top 10 Injection Molding Manufacturers in China?

The top 10 injection molding manufacturers in China are Topworks Plastic Mold, Shenzhen Silver Basis Technology, JMT Automotive Mold, TK Mold Ltd, FOW Mould, Richfields Corporation, FirstMold Manufacturing, EVA Precision Industrial Holdings, SINO MOULD, and Hanking Mould. All are ISO-certified, verified suppliers for automotive and medical sectors, and export internationally with proven delivery reliability.

How to Choose Among China’s Top Injection Molding Companies

Not all China injection molding manufacturers deliver the same quality. The best suppliers combine advanced CNC and EDM tooling equipment, precision mold steel grades such as P20, H13, S136, and NAK80, and consistent mold tolerances of ±0.01mm or better. ISO 9001 certification is the minimum requirement; IATF 16949 is mandatory for automotive programs.

Topworks Plastic Mold, based in Taizhou, Zhejiang and founded in 2006, holds ISO certification and has supplied precision ABS, PP, and PC molds to clients across North America, Europe, and Australia. They deliver T1 samples in 25 to 35 working days and provide free DFM analysis on every submitted CAD file.

Comparison: Top China Injection Mold Suppliers at a Glance

ManufacturerLocationFoundedSpecialty
Topworks Plastic MoldTaizhou, Zhejiang2006Medical, ABS,PC precision molds
Silver Basis TechnologyShenzhen1993Automotive, electronics OEM
JMT Automotive MoldTaizhou, Zhejiang2005Automotive IATF 16949
TK Mold LtdShenzhen1983Mobile, appliances, medical
FOW MouldTaizhou, Zhejiang2009Automotive, home appliance
Richfields CorporationHong Kong / China2001Export-focused, DME/HASCO
FirstMold ManufacturingZhongshan2011Aerospace, electronics
EVA PrecisionShenzhen1993Metal + plastic precision
SINO MOULDTaizhou, Zhejiang2000Packaging, home appliance
Hanking MouldDongguan1996Automotive, consumer goods

Why Topworks Plastic Mold Leads This List

Topworks Plastic Mold stands out among China’s top injection molding manufacturers for its combination of medical-grade cleanroom production, micro-injection molding capability (parts from 1g to 5g, wall thickness from 0.6mm), and full-service DFM support. Topworks delivers molds in P20, H13, S136, and NAK80 steel with T1 samples in 25–35 working days. For buyers sourcing precision ABS or PC injection molds from China, Topworks Plastic Mold offers direct English communication, free DFM reports, and quotes within 24 hours at topworksplasticmold.com.

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Topworks plastic mold

Topworks plastic mold

Headquarters: Taizhou, Zhejiang

Year Founded: 2006

Topworks plastic mold is dedicated to medical plastic injection molding solutions. As an ISO-certified medical injection molding company, Topworks focuses on creating medical injection molded products while leading their development and manufacturing. The company provides complete solutions including product development, mold creation, material selection services, and injection molding capabilities. Topworks owns an ISO 8 cleanroom space which could ensure high standards for medical products cleanliness and quality.

They deliver micro-injection molding solutions for products ranging from 1 g to 5g in weight, with the thinnest possible wall thickness being 0.6 mm. Their services of overmolding and insert molding enhance medical device strength and functionality. Precision-oriented innovation makes Topworks a trusted supplier for medical device companies worldwide.

Shenzhen Silver Basis Technology Co., Ltd

Silver Basis

Headquarters: Shenzhen, Guangdong

Year Founded: 1993

Shenzhen Silver Basis Technology Co., Ltd operates as a high-tech enterprise employing over 8,700 staff members across nine subsidiaries. Established in 1993, the company provides design, R&D, manufacturing, and marketing for plastic, metal, and electronic components. As an ODM/OEM provider, Silver Basis operates globally as a solution provider for precision injection molds and structural parts.

JMT Automotive Mold Co., Ltd

JMT Mold

Headquarters: Taizhou, Zhejiang

Year Founded: 2005

JMT Automotive Mold Co., Ltd started operations in 2005 and has become a prominent automotive mold manufacturer. Their manufacturing facility in Taizhou, Zhejiang, has over 15 years of experience in the industry. JMT operates under international automotive quality standards certified by ISO/TS16949.

TK Mold Ltd

TK Mold

Headquarters: Shenzhen, Guangdong

Year Founded: 1983

Since 1983, TK Mold Limited has developed into a premier organization offering complete plastic solution services. Operating from China, TK provides mechanical design and plastic component manufacturing for various sectors including mobile phones, household appliances, and medical devices.

FOW Mould

FOW Mould

Headquarters: Taizhou, Zhejiang

Year Founded: 2009

FOW Mould has operated as a professional plastic injection mold manufacturer since 1979, delivering full-range services including plastic part and mold design, mold making, and injection molding. Their advanced CNC machines and 3D printers ensure precise and efficient manufacturing processes.

Richfields Corporation

Richfields

Headquarters: Kowloon, Hong Kong

Year Founded: 2001

Richfields Corporation began operations in 2001 and has become a leading manufacturer in the plastic molding business. They produce around 300 molds annually for overseas markets and are recognized for meeting international standards such as DME and Hasco.

FirstMold Manufacturing Limited

FirstMold

Headquarters: Zhongshan, Guangdong

Year Founded: 2011

FirstMold Manufacturing Limited established itself in 2011 as a high-tech manufacturing enterprise. Their core activities include high-precision mold manufacturing, prototype production, and injection molding for the automotive and aerospace industries.

EVA Precision Industrial Holdings Limited

EVA Precision

Headquarters: Shenzhen, Guangdong

Year Founded: 1993

EVA Precision Industrial Holdings Limited offers mold design and automated component assembly services. With expertise in precision metal stamping and plastic injection molding, EVA serves the electronics and automotive manufacturing sectors.

SINO MOULD

SINO MOULD

Headquarters: Taizhou, Zhejiang

Year Founded: 2000

SINO MOULD produces molds for home appliances, automotive components, and packaging products. They focus on short cycle times and extended mold life, exporting products to 124 countries.

Hanking Mould

Hanking Mould

Headquarters: Dongguan, Guangdong

Year Founded: 1996

Hanking Mould provides one-stop plastic mold manufacturing services including design, project management, and assembly. They maintain high production standards through certifications like TS16949 and ISO 9001.

What certifications should a top China injection molding company have?

The minimum standard is ISO 9001:2015. For automotive programs, IATF 16949 is required. Medical molding requires ISO 13485. All ten manufacturers on this list hold at least ISO 9001 certification.
How long does it take to get a mold from a China injection molding manufacturer?
Standard lead time for T1 samples from top China mold makers is 25 to 45 working days depending on part complexity and steel grade. Topworks Plastic Mold delivers T1 samples in 25–35 working days for most ABS and PC molds.

Which China injection molding manufacturer is best for small businesses?

Topworks Plastic Mold, FOW Mould, and FirstMold Manufacturing are well-suited for small and medium businesses. They accept low MOQs, provide English-language communication, and offer free DFM analysis before any tooling commitment.

What mold steel do the best Chinese injection molding companies use?

Top manufacturers use P20 for general-purpose molds, H13 for high-temperature applications, S136 for corrosion-resistant or optical-grade molds, and NAK80 for high-polish consumer product molds. Steel selection depends on resin type, volume, and surface finish requirements.

How do I verify a China injection molding supplier before ordering?

Request ISO certification documents, a factory audit report, and samples from a similar previous project. Ask for T1 trial reports with CMM dimensional data. Platforms like Made-in-China and Alibaba show verified supplier badges, but direct factory visits or third-party audits provide the highest confidence.

Where are most of China’s top injection molding manufacturers located?

The two main clusters are Taizhou, Zhejiang (Topworks, JMT, FOW Mould, SINO MOULD) and Shenzhen / Guangdong (Silver Basis, TK Mold, EVA Precision, Hanking Mould). Taizhou is China’s designated “Mold City” with the highest concentration of precision mold tooling suppliers.