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There are plenty of companies in China that can make plastic parts, but that does not make supplier selection straightforward. One factory may be a strong choice for repeat molding, while another is better equipped for difficult tooling, development work, or parts that need additional processing.
This list compares 10 custom plastic parts manufacturers in China from that practical angle. If you are looking for a plastic parts manufacturer, the useful question is not who has the biggest factory, but whose normal capabilities fit your part, volume, and production needs.
Comparison of Custom Plastic Parts Manufacturers in China
| Company | Main Capabilities | Best Fit |
| Jabil | Tooling, injection molding, multi-shot molding, assembly | Large, complex manufacturing programs |
| HingTung | Tooling, injection molding, CNC, secondary operations, assembly | Integrated OEM production |
| Tontec International | Tooling, engineering-plastic molding, multi-component molding | Technical molded parts and scaled production |
| TK Group | Tooling, injection molding, validation, surface processing | Tooling-led production programs |
| Hongrita | Precision tooling, multi-component molding | Precision and multi-material components |
| RapidDirect | Injection molding, CNC, 3D printing, rapid tooling | Fast development and multi-process sourcing |
| 3ERP | Rapid tooling, injection molding, CNC, prototyping | Prototype and low-volume production |
| WayKen | Rapid tooling, injection molding, CNC, vacuum casting | Product development and bridge production |
| HanKing Mould | Mold making, molding, secondary processing, assembly | Tooling-led custom molded parts |
| Rilong Precision Mold | Tooling, 2K molding, overmolding, assembly | Multi-material molded components |
10 Plastic Parts Manufacturers in China
The companies below represent several different models within China’s custom plastic parts manufacturing . That distinction is useful when building a shortlist. A large contract manufacturer, a rapid manufacturing company, and a tooling-focused molder may all produce custom plastic components, but they are not necessarily suited to the same volume, development stage, or supply-chain structure.
1. Jabil
Jabil is a global manufacturing group with extensive plastics operations rather than a conventional standalone injection molding factory. Its published capabilities include injection molding, tooling, insert molding, overmolding, multi-shot molding, thin-wall molding, plastics assembly, and inspection.
Jabil reports more than 1,000 injection molding machines globally, while Green Point and related plastics and tooling operations are listed in Shenzhen, Suzhou, Tianjin, Wuxi, and other China locations. This scale makes Jabil particularly relevant to large and complex multinational programs. Companies considering a more conventional China sourcing model can also compare the opportunities and risks involved in custom plastic injection molding in China before narrowing the supplier list.
2. HingTung
Founded in 2011, HingTung supports custom plastic components through DFM, mold manufacturing, injection molding, CNC machining, secondary operations, assembly, and inspection. Its current website lists a 50,000 m² manufacturing facility, 350+ machines and equipment, more than 80 injection molding machines, and a 60-650T injection molding range.
HingTung also holds ISO 9001, ISO 14001, and IATF 16949 certifications. Its custom plastic injection molding services are most relevant to drawing-based OEM projects where tooling, molding trials, downstream processes, and repeat production need to remain within a coordinated workflow.
3. Tontec International
Tontec, founded in Hong Kong in 1982, has manufacturing operations in Shenzhen, Suzhou, Tianjin, Wuhan, Maanshan, Chengdu, and Huizhou. The company focuses on plastic injection molds and molded parts, with several hundred injection molding machines ranging from 6T to 1,000T.
Its published material range includes ABS, PC, POM, PBT, PA, PPS, PEI, and PEEK, and it also offers multi-component molding, insert molding, gas-assisted molding, and IML. That makes Tontec a practical option for projects involving engineering plastics or more complex molding requirements.
4. TK Group
TK Group traces its mold manufacturing business to 1983. The company currently operates production bases in Shenzhen, Huizhou, Suzhou, and Vietnam, with a reported total building area of about 180,000 m².
Its published injection molding services cover structural component analysis, mold development, product and mold validation, mass-production delivery, and surface treatment. This makes TK Group more relevant to established projects where tooling development is closely tied to later injection molding production, rather than projects that only require a quick prototype or a small number of parts.
5. Hongrita
Hongrita was founded in Hong Kong in 1988 and operates mold and precision plastic-component facilities in Shenzhen and Zhongshan, along with manufacturing operations in Malaysia. Its technical focus includes precision molds, multi-component injection molding, multi-cavity tooling, LSR molding, and intelligent molding systems.
Hongrita also lists ISO 9001, ISO 14001, and IATF 16949 among its certifications. Compared with general-purpose manufacturers of plastic parts, its published capabilities make it particularly relevant to precision components, multi-material designs, and parts where complex tooling plays a significant role in production.
6. RapidDirect
RapidDirect combines its own manufacturing facilities with a broader network of manufacturers in China. Its services include CNC machining, injection molding, sheet metal fabrication, and 3D printing. For plastic parts, the company offers production tooling, overmolding, insert molding, and conventional injection molding, while its online platform supports quoting and project management.
RapidDirect is therefore a different supplier model from a traditional dedicated molder. It may suit teams that want to move between prototypes, tooling, and production while sourcing several manufacturing processes through the same platform.
7. 3ERP
3ERP is an ISO 9001:2015-certified rapid manufacturing company in China. Its published services cover CNC machining, vacuum casting, 3D printing, rapid tooling, and injection molding. Rapid tooling is positioned for prototype tooling, bridge tooling, pilot runs, and lower-volume production before a project moves into more conventional mass-production tooling. This makes 3ERP more relevant to parts that are still moving through development and validation than to every mature high-volume program. It also gives engineering teams several manufacturing routes to compare before locking in the final process.
8. WayKen
WayKen is a Shenzhen-based rapid manufacturer specializing in prototyping and low-volume production of plastic and metal parts. Its manufacturing options include CNC machining, 3D printing, vacuum casting, rapid tooling, and injection molding. The company positions rapid tooling as a way to bridge prototype development and production using molded parts made from production-grade materials. This makes WayKen a practical shortlist candidate when a design still needs validation or when production quantities do not yet justify a conventional high-volume tooling program.
9. HanKing Mould
HanKing’s plastic mold business began in Shenzhen in 1996. Its current company profile describes services extending from injection mold design and mold manufacturing to molding, secondary processing, and final assembly. That structure is useful for projects where the tool and finished molded component need to be managed together. It can also matter when parts require printing, joining, finishing, or assembly after molding, since these steps may influence the original part and tool design. The main options are covered in more detail in this guide to injection molding post-processing.
10. Rilong Precision Mold
Rilong Precision Mold is based in Shenzhen and states that it was established in 1990. Its facility covers 11,000 m², and its published capabilities include precision mold design and manufacturing, injection molding, 2K molding, overmolding, insert overmolding, silicone processing, and full or semi-assembly. This gives Rilong a clearer fit for projects involving multi-material structures or several molding stages rather than only straightforward single-material components. For buyers comparing custom plastic parts manufacturers, that process mix can be more important than factory size alone.
What Types of Custom Plastic Parts Can Chinese Manufacturers Produce?
Chinese custom plastic parts manufacturers commonly produce:
- Injection molded parts: housings, covers, clips, brackets, connectors, and other repeat-production components.
- Engineering plastic parts: components made from materials such as PA, POM, PC, PBT, PPS, and PEEK.
- Insert and overmolded parts: plastic combined with metal inserts, elastomers, or a second material.
- Precision plastic components: parts with critical dimensions, mating features, or small functional details.
- Finished assemblies: molded parts that also require printing, welding, machining, or assembly.
Not every manufacturer of plastic parts supports all of these processes, so the supplier should be matched to the part design, material, volume, and downstream requirements.
FAQs About Plastic Parts Manufacturers in China
How Are Custom Plastic Parts Manufactured?
The process depends on the part geometry, material, quantity, and functional requirements. Injection molding is widely used for repeat production of thermoplastic parts, while CNC machining, 3D printing, vacuum casting, and other processes may be more suitable during development or at lower volumes. When manufacturing plastic parts, the process should be selected around the actual component rather than simply choosing the supplier first.
What Is the Difference Between a Plastic Parts Manufacturer and a Mold Maker?
A mold maker focuses on designing and building the tooling, while a plastic parts manufacturer is responsible for producing the finished components. Some suppliers cover both stages. When mold development and molding are handled together, trial feedback can be carried directly into tooling adjustments. That is also how HingTung manages projects that involve both mold making and injection molding.
Where Should I Manufacture Custom Plastic Parts?
There is no single location that fits every project. China has a broad plastic parts manufacturing base covering large contract manufacturers, precision molders, rapid manufacturing companies, and integrated OEM factories. Compare the required process, tooling, volume, quality control, logistics, and project-management needs before choosing a location. The lowest quoted price should not be the only deciding factor.
Conclusion
Some companies are better suited to large production programs, while others are stronger in tooling, development work, or integrated secondary processing.
When comparing a custom plastic parts manufacturer, focus on whether its usual way of working matches your drawing, material, volume, and quality requirements. HingTung is one option for projects that need tooling, molding, secondary operations, and assembly to stay closely coordinated from development into production. If you already have drawings or project requirements, you can send them to HingTung for an initial review and quotation.