China is home to a large number of plastic injection molding companies, ranging from specialized mold makers to full-service manufacturers offering tooling, molding, assembly, and secondary operations.
For overseas buyers, however, choosing a supplier is not simply about finding the lowest mold price. The right partner depends on part size, resin, production volume, tooling life, cosmetic requirements, industry standards, and whether you need services such as insert molding, overmolding, 2K molding, or rapid tooling.
This guide highlights 10 plastic injection molding companies in China in 2026, including established production mold manufacturers and suppliers focused on rapid tooling and low-volume manufacturing.
The companies are not ranked solely by size. Each has different strengths and may suit different types of injection molding projects.
Top 10 Injection Molding Companies in China at a Glance
| Company | Location | Main Capabilities | Best For |
|---|---|---|---|
| TK Group | Shenzhen, Huizhou & Suzhou | Precision molds, injection molding, multi-component molding | Large and complex production programs |
| Tontec International | China, multiple facilities | Precision tooling, engineering plastics, advanced molding | Engineering plastics and high-volume production |
| FOW Mold | Taizhou, Zhejiang | Mold making, injection molding, insert molding, overmolding | Large molds and industrial plastic products |
| FirstMold | Zhongshan, Guangdong | Mold making, injection molding, rapid tooling, prototyping | Prototype-to-production projects |
| HanKing Mould | Shenzhen, Guangdong | Precision tooling, injection molding, insert and 2K molding | Precision molds and export projects |
| JMT Mould | Taizhou, Zhejiang | Automotive molds, industrial molds, plastic part production | Automotive and larger injection molds |
| ACO Mold | Dongguan / Shenzhen | Mold making, molding, DFM, assembly | Custom plastic parts and SME projects |
| RapidDirect | Shenzhen, Guangdong | Rapid tooling, injection molding, overmolding, insert molding | Fast NPI and on-demand production |
| 3ERP | Zhongshan, Guangdong | Rapid tooling, prototype molding, bridge tooling | Prototypes and low-volume molding |
| HLH Prototypes | Shenzhen / Dongguan | Rapid tooling, injection molding, LSR, prototyping | Product development and low-volume runs |
1. TK Group
Best for: Large, technically demanding injection molding programs
Founded in 1983, TK Group has developed from a mold manufacturer into a large provider of integrated injection molding solutions. The company operates production facilities in Shenzhen, Huizhou and Suzhou in China, as well as Vietnam, with approximately 180,000 m² of total building area reported by the company.
Its services cover mold design and manufacturing, product and mold validation, injection molding, mass production, and secondary surface processes. TK serves industries including automotive, medical and personal care, consumer electronics, communication equipment, wearable devices, and smart home products.
Compared with smaller mold shops, TK is particularly relevant for buyers that require established project management, complex tooling, automated production, and long-term production programs.
Its scale also makes it more suitable for companies looking for a strategic manufacturing partner rather than simply purchasing one inexpensive injection mold.
2. Tontec International
Best for: Engineering plastics and technically demanding molded components
Tontec specializes in the design and production of plastic injection molds and molded components for industries including automotive, aerospace, industrial equipment, office equipment, and medical devices. The company states that it employs more than 4,000 people worldwide.
One of Tontec’s notable strengths is engineering thermoplastics.
Its molding capabilities cover common materials such as ABS, PC, POM, PET, PBT and PA, as well as higher-performance polymers including PPA, PPS, PSU, LCP, PEI and PEEK. It reports several hundred injection molding machines ranging from 6 to 1,000 tons of clamping force.
Tontec also supports multi-component molding, insert molding, gas-assisted molding and in-mold labeling.
For components that must combine dimensional stability, mechanical performance and more demanding resin-processing requirements, Tontec is one of the stronger options on this list.
3. FOW Mold
Best for: Large molds, household products and industrial plastic components
FOW Mold is based in Taizhou, Zhejiang, an important mold-manufacturing region in China.
The company offers an integrated process covering product design, mold design, mold manufacturing and injection molding. It also provides insert molding and overmolding, allowing customers to manage both tooling and finished molded parts through the same supplier.
FOW has particular experience with buckets, storage products, baby products, furniture, automotive components and household appliances. The company reports capacity of around 900 molds per year and operates injection molding machines for both mold trials and production.
This makes FOW particularly relevant when the project involves relatively large plastic products or large production molds rather than only miniature precision components.
For buyers, another advantage is that mold design, machining, mold trials and molding can be handled within the same manufacturing organization.
4. FirstMold
Best for: Projects moving from prototype to production
FirstMold was founded in 2011 and is headquartered in Zhongshan, Guangdong. Its operations combine mold manufacturing and injection molding with CNC machining, rapid prototyping and other custom manufacturing processes.
The company currently operates two manufacturing facilities in Zhongshan and another facility in Guanajuato, Mexico. Its Chinese production sites cover more than 30,000 m² and support services from prototype manufacturing through production tooling and mass injection molding.
This makes FirstMold particularly relevant to product-development teams that do not want to move immediately into high-volume tooling.
A project can begin with a prototype, progress into tooling and validation, and then move toward production molding through the same supplier.
Its broader manufacturing capabilities are also useful when a product contains both machined and molded components or requires multiple manufacturing processes during development.
5. HanKing Mould
Best for: Precision injection molds and export-oriented projects
HanKing Mould began its plastic mold business in Shenzhen in 1996 and focuses on injection mold design, mold manufacturing, mold trials, injection molding, secondary processing and assembly.
Its tooling capabilities include single-cavity and multi-cavity molds, while its molding services cover common plastics including ABS, PC, PP, POM, PA, TPE, TPU and PPS. HanKing also works with insert molding, two-shot molding and more complex plastic components.
Industries served include automotive, consumer electronics, household appliances, precision equipment and medical products.
HanKing is particularly interesting for overseas buyers because it operates more like a traditional export mold maker combined with an injection molding supplier.
Instead of focusing only on molded parts, its project workflow emphasizes DFM, tooling design, mold trials, modification and production validation before full-scale molding.
6. JMT Mould
Best for: Automotive molds and larger production tooling
JMT Mould is another Taizhou-based mold manufacturer with a strong focus on injection tooling.
The company states that it has operated since 2002 and currently has a facility of more than 23,000 m², approximately 280 employees and over 50 CNC machines and related pieces of equipment.
Its one-stop mold services include mold components, mechanical design, mold design, mold manufacturing, plastic component manufacturing and secondary processing.
JMT’s product range includes automotive molds, household molds, industrial molds, pipe-fitting molds and larger products such as storage crates.
The company also reports IATF 16949 and ISO 9001 quality-system certifications, making it particularly relevant to customers working on automotive or more structured production programs.
Compared with rapid-tooling suppliers, JMT is better positioned for buyers whose main concern is production tooling and repeat plastic-part manufacturing.
7. ACO Mold
Best for: Custom molding projects and small-to-medium businesses
ACO Mold operates mold and molding facilities in Guangdong and provides services from DFM and mold design through mold manufacturing, injection molding, assembly and secondary processing.
Its injection molding operations process materials including ABS, PC, PC/ABS, PP, PMMA, POM, TPE, PA and high-temperature plastics such as PPS.
Unlike some large suppliers that are primarily structured for large production contracts, ACO also emphasizes flexible production quantities and custom project support.
This can make it suitable for startups, small and medium-sized businesses, and established manufacturers that need a conventional Chinese mold maker without the scale of a very large contract manufacturer.
ACO also offers secondary processes such as printing, laser marking, electroplating and ultrasonic welding through its manufacturing network, allowing customers to source a more complete finished component.
8. RapidDirect
Best for: Rapid product development and on-demand injection molding
RapidDirect differs somewhat from traditional mold companies because it operates as a broader on-demand manufacturing platform.
Its injection molding services cover injection mold tooling, plastic injection molding, insert molding and overmolding, with support for both prototypes and production parts. RapidDirect reports a manufacturing network with around 50 molding machines ranging from 90 to 830 tons.
The company also states that T1 samples can be available in around two weeks for suitable projects and that there is no fixed minimum order requirement.
One of its biggest advantages is the transition from product development to production. Customers can combine CNC machining, 3D printing, vacuum casting and injection molding within the same manufacturing platform.
For engineering teams focused on new product introduction, design validation and flexible production quantities, this model can be more convenient than working with a conventional production-only molding factory.
9. 3ERP
Best for: Rapid tooling, bridge production and low-volume injection molding
3ERP is based in Zhongshan, Guangdong and is primarily known for rapid prototyping and low-volume manufacturing.
Its rapid tooling service is designed for prototype injection molding, pilot runs, bridge production and low-volume manufacturing rather than immediately committing to expensive high-volume tooling.
Rapid tooling typically uses aluminum or softer tool steels to reduce initial tooling cost and manufacturing time.
According to 3ERP, a relatively simple mold and molded parts can sometimes be produced within approximately ten days, depending on geometry and project requirements. Aluminum tooling may be used for around 1,000 shots, while P20 steel tooling can support substantially longer production runs.
This makes 3ERP particularly useful when a design has already progressed beyond 3D-printed prototypes but production demand is still too uncertain to justify a long-life production mold.
10. HLH Prototypes
Best for: Product development and low-volume molded parts
HLH combines prototyping, rapid tooling and injection molding within a broader custom manufacturing operation.
Founded in 2008, the company operates locations in Shenzhen, Dongguan, Changsha and Wuhan. Its manufacturing facility covers approximately 12,000 m² and is divided into multiple production areas for metal, plastic and composite manufacturing.
For injection molding, HLH offers both prototype and production tooling using aluminum or steel molds.
Its published capabilities include injection molding machines from 50 to 3,000 tons, insert molding, overmolding, conventional plastic injection molding and liquid silicone rubber molding.
This makes HLH especially suitable for new-product development where customers may need several different prototype processes before committing to molding.
It is also useful for companies that expect to start with low production quantities but want the option to move toward longer-life steel tooling later.
How to Choose an Injection Molding Company in China
The largest injection molding company is not automatically the best supplier for every project.
A buyer ordering 500 prototype housings has very different requirements from an automotive company sourcing several hundred thousand glass-filled nylon components.
Before requesting quotations, consider the following factors.
| Project Requirement | What to Look For |
|---|---|
| Prototype or market testing | Rapid tooling, aluminum or soft-steel molds |
| Low-volume production | Flexible MOQ and bridge tooling |
| High-volume manufacturing | Hardened steel molds, automation, multi-cavity tooling |
| Automotive components | IATF 16949 and automotive project experience |
| Medical applications | Appropriate quality systems, documentation and controlled manufacturing |
| Cosmetic housings | Mold polishing, texture control and secondary finishing |
| Metal-plastic components | Insert molding capability |
| Soft-touch products | Overmolding or 2K molding |
| Large plastic components | Large-tonnage injection molding machines |
| Engineering plastics | Proven experience with PEEK, PPS, PEI, POM, PA and reinforced polymers |
Tooling Capability
A good injection molding supplier should understand much more than operating an injection molding machine.
Mold design determines gate position, cooling performance, cycle time, parting lines, ejection, dimensional consistency and long-term tooling reliability.
Ask whether critical mold-making operations such as CNC machining, EDM, wire EDM, grinding, polishing and mold trials are performed internally or outsourced.
Injection Molding Capacity
Check machine tonnage and shot capacity against your actual component.
Very small precision parts may require different equipment from large automotive housings or storage products.
For high-volume programs, the number of machines, automation level and ability to support multi-cavity molds become increasingly important.
Material Experience
Processing ABS or PP is relatively common.
Projects involving PEEK, PPS, PEI, glass-filled nylon, flame-retardant polymers or other engineering plastics require greater control over drying, melt temperature, mold temperature and process parameters.
A supplier that has worked with your specific resin is generally preferable to one that only claims a broad material list.
Quality and Certification
ISO 9001 is a useful starting point, but industry-specific requirements may require additional quality systems.
Automotive customers may look for IATF 16949, while medical projects may require ISO 13485 or additional production controls depending on the component and regulatory requirements.
Do not evaluate certification alone. Ask how dimensions are inspected, whether FAI or dimensional reports are available, how molding parameters are controlled and how nonconforming parts are handled.
Communication and Project Management
International injection molding projects can last months or years.
The supplier should therefore be able to communicate clearly during:
- DFM review
- Mold design approval
- Tool manufacturing
- T1 sampling
- Mold modification
- Material approval
- Pilot production
- Mass production
Regular project updates, mold-trial reports and clear documentation can be just as important as the quoted mold price.
Injection Mold Manufacturer vs. Injection Molding Company
These terms are sometimes used interchangeably, but they do not always describe the same business.
An injection mold manufacturer primarily designs and manufactures the tooling used to produce plastic parts. Some mold manufacturers build a mold, test it and then ship the tool to the customer’s molding facility.
An injection molding company operates molding machines and manufactures plastic components. Some molding companies make their own tooling, while others purchase molds from specialist toolmakers.
An injection molding machine manufacturer, meanwhile, produces the machinery used by molding factories.
For buyers sourcing finished plastic components, a supplier that can manage both mold manufacturing and injection molding can simplify troubleshooting because tooling and production responsibility remain with the same company.
Is Injection Molding in China a Good Choice?
China remains an important sourcing region for injection molds and custom plastic components because of its established tooling supply chain, large manufacturing base and access to mold steel, standard components, CNC machining, EDM, molding equipment and secondary processes.
However, sourcing from China should not be based on price alone.
For a successful project, buyers should compare mold construction, mold steel, expected tool life, cavity count, resin requirements, inspection standards, ownership of the mold, maintenance responsibilities and production capacity before selecting a supplier.
For lower-volume products, rapid tooling may provide better economics than a conventional production mold.
For stable high-volume products, investing more in a durable multi-cavity production mold can significantly reduce unit cost over the life of the program.
Need CNC Machined Prototypes Before Injection Molding?
Injection molding is usually most economical after a design has been validated and production quantities justify the tooling investment.
Before committing to a mold, CNC machining can be useful for producing functional plastic prototypes, engineering components and low-volume parts without dedicated injection tooling.
YuanYi Precision Manufacturing provides CNC milling, turning, 5-axis machining and precision plastic machining for prototypes and low-volume production. We work with engineering plastics including POM, PEEK, ABS, PA, PC and PTFE, helping product-development teams validate geometry and function before moving into higher-volume manufacturing.
Have a plastic or metal part ready for production? Send us your CAD files and drawings for a manufacturing review and quotation.
FAQ
Companies offering established injection molding and tooling capabilities in China include TK Group, Tontec International, FOW Mold, FirstMold, HanKing Mould, JMT Mould, ACO Mold, RapidDirect, 3ERP and HLH Prototypes. Each company focuses on different project types, ranging from production molds to rapid tooling and low-volume manufacturing.
Injection molding cost depends heavily on the component geometry, mold size, number of cavities, mold steel, resin, expected tool life, surface finish and production quantity. Tooling normally represents the largest upfront expense, while unit cost generally decreases as production volume increases.
Ideally, provide a 3D CAD model, 2D drawing, material specification, expected annual quantity, required surface finish, color requirements, critical tolerances and any certification or inspection requirements. Providing expected lifetime production volume also helps the supplier choose an appropriate mold construction.
Yes. Companies specializing in rapid tooling can use aluminum or softer steel molds for prototype, bridge and low-volume production. This reduces tooling cost compared with a conventional hardened production mold.
It is not mandatory, but using one supplier for both tooling and molding can simplify project management. Problems involving gates, cooling, warpage, ejector marks or dimensional variation can often be resolved faster when the mold-making and molding teams work within the same organization.
Use an appropriate NDA or manufacturing agreement, clearly define ownership of CAD data and tooling, and specify who owns the physical mold after payment. The agreement should also define whether the supplier may modify, move or use the mold for any other purpose.
Rapid tooling prioritizes lower initial cost and shorter lead time, making it suitable for prototypes and lower-volume production. Production tooling typically uses more durable mold steels, more robust cooling and ejection systems, and configurations designed for hundreds of thousands or even millions of molding cycles.
