Top 10 Injection Molding Manufacturers for Electronics Parts in China

Similar to everything that has to do with electronic manufacturing, the right injection molding partner will go a long way in ensuring that every part is accurate, reliable, and long-lasting. Rigorous quality control and highly developed engineering capability are required for everything from simple casings and connectors to more complicated parts internally. The following article highlights the top 10 injection molding manufacturers for electronic parts in China, since they are known to supply high-performance plastic components to various markets worldwide.

These listed companies have an array of assets, right from state-of-the-art production equipment to strong engineering support. For your convenience, listed below is the key information about each company, company background, and the main offerings of each option. Note that one can always refer to this list while sourcing electronic components from suppliers they want to be highly accurate, safety-compliant, and cost-effective. Further, one is encouraged to visit their websites for detailed specifications of materials, certification, and value addition that allows customization. By doing this, you are guaranteed to make the best choice of a supplier who will always give you quality at prices that match it.

1. List of Injection Molding Manufacturers for Electronics Parts in China

Below, you will find a quick rundown of the top 10 suppliers identified in this guide. This will be useful to refer back to for comparison purposes as you review each company in greater detail.

2. Top 10 Injection Molding Manufacturers for Electronics Parts in China

The company profiles of major manufacturers included here will help you assess their capabilities and strengths in light of the needs of your particular project.

Top 1: Holly Plastic

Holly Plastic is a professional injection molding supplier in China for electronic plastic components. The company develops very good engineering and manufacturing capabilities to meet global standards with more than two decades of operation. They have ongoing long-term cooperation with several OEMs and well-known brands in consumer electronics, communication devices, and smart home products. Their production encompasses a wide variety of engineering materials, including but not limited to ABS, PC, PA, PBT, and all kinds of flame-retardant plastics commonly required in the electronics industry.

Equipped with a fully modern production facility, Holly Plastic has automatic injection moulding machines that can handle both small-volume and high-volume production. The company operates under a strict quality control system, following the most stringent industrial standards of safety and durability throughout every process stage: in design, moulding, and inspection. Quick prototyping and mold fabrication are also provided to support customers from early design up to mass production.

Besides manufacturing, Holly Plastic is interested in long-term partnerships that are in greater need of early involvement in design optimization. The engineering team at Holly Plastic advises on DFM, product improvements, and molding solutions. An integrated approach ensures stability in performance while reducing lead times for customers in fast-moving electronic markets.

Website: https://www.hollyplasticparts.com/solution/electronics-plastic-injection-molding/

Year established: 2000

Location: China

Products:

• Electronic plastic housings
• Communication device components
• Smart home plastic parts
• Precision connectors
• Custom molded engineering parts

Top 2: Engineering Plastics Industries

EPI is a professional and reliable injection molding supplier of precision electronic parts for both local and international brands. Since the beginning, the company has been at the forefront of advanced plastic molding technologies and optimized engineering design to meet high requirements in consumer electronics, telecom equipment, and industrial electronics. They process high-performance materials such as PC+ABS, PBT, and glass fiber-reinforced nylon, which meet the most stringent fire-retardant and durability standards.

EPI facilities are fully equipped with automated production lines, precision tooling workshops, and surface finishing systems to manufacture any project from concept design to mass-scale manufacturing. Every product manufactured passes through several rigorous inspections, dimensional measurements, environmental tests, and performance validation by the quality team for electronic parts to ensure consistency and long performance.

The company focuses on engineering collaboration in providing mold flow analysis, prototyping, and structural improvement proposals to reduce customers’ lead times while realizing cost-effective production goals. With a customer-first strategy and fine-tuned supply chain links, EPI offers reliable products in fast-changing electronics markets.

Website: https://www.gzenqi.com/

Year established: 2009

Location: China

Products:

• Consumer electronics covers
• Telecom plastic components
• Industrial device housings
• Precision-engineered parts
• ODM/ OEM plastic solutions

Top 3: Ecomolding

Ecomolding is one of the highly recognized, China-based companies with expertise in injection molding associated with electronic plastic parts and mold making. With many years of industry exposure, this company has gathered vast experience in supplying high-precision molded parts for a number of electronic devices, home appliances, and automotive electronics. Its engineers can deal with such engineering resins as PC, PMMA, TPE, PA, and numerous customized high-strength materials that may be in demand in certain technical applications.

This includes different types of advanced molding machines, from small precision equipment up to high-tonnage presses, which can produce everything from microscale components to large protective housings. Besides that, rapid tooling, multi-cavity mold fabrication, and automation of the production system are also provided by the company in order to provide short project cycles. Ecomolding also adheres to a strict quality monitoring process, comprising DFM review, sample inspection, and durability testing.

Ecomolding follows the service approach, offering performance and productivity improvements for its customers’ designs from any part of the world. Its solutions allow leading electronic brands to find that reliable quality they have been looking for, at a competitive price with fast project delivery.

Website: https://ecomolding.com/

Year established: 1998

Location: China

Products:

• Plastic housings for electronics
• Mold fabrication
• Insert-molded components
• Transparent plastic parts
• Functional engineering components

Top 4: ERBIWA Mould Industrial

ERBIWA Mould Industrial focuses on precision tooling and plastic injection molding for electronic and high-tech product manufacturers. As a relatively young enterprise, it managed to create a technical advantage in record time through advanced mold design systems and high-accuracy machining equipment. It targets the making of sophisticated parts with tight tolerances, stable structure, and excellent aesthetic performance, including consumer device covers and smart equipment housings.

Simulation-driven mold development, automated molding lines, and production to CE standards mean that each component comes out of the production process according to the highest possible quality standards. Its engineering team works directly with customers to optimize structure, reduce weight, and ensure reliability in harsh electrical and thermal environments. ERBIWA also introduced clean production spaces that help in the manufacture of components like display modules and sensor casings that must be of dust-free quality.

With the business fast-growing, ERBIWA keeps serving leading electronics manufacturers by accelerating their products to market and assuring continued performance. Due to its flexible capacity, it is also a strong partner for prototype and mass-production projects.

Website: https://www.erbiwa-mould.com/

Year established: 2016

Location: China

Products:

• Precision electronics housings
• Smart device plastic parts
• Display and sensor components
• Complex structural parts
• Custom injection molds

Top 5: Hong Yang Precision Industry

Hong Yang Precision Industry is dedicated to the development of highly precise molds in a wide variety of electronic devices. That means it has rich technical experience in the processing of minute parts and structural components that can be durable in smartphones, wearable electronics, networking products, and other smart modules. Material capability includes high-strength, flame-retardant, and dimension-stable plastics that meet international certification specifications in electronics.

Hong Yang provides high-tech molding machines that are characterized by powerful automation, repeatability, and stability. On the other hand, its molding group works directly with customers for lower tooling cycles, but also optimizes internal component design in efforts to improve assembly performance. Other secondary operations to support integrated product delivery within the molding process include printing, coating, ultrasonic welding, and assembly.

With a commitment to quality excellence, Hong Yang uses strict inspection standards and continuously invests in new manufacturing technologies. With reliable engineering support and cost-competitive production, the company has gained worldwide recognition among electronics customers.

Website: https://www.thy-precision.com/

Year established: 2010

Location: China

Products:

• Wearable device components
• Smartphone and tablet parts
• Communication electronics housings
• Micro-plastic precision parts
• Integrated assembly services

Top 6: CHII LEE

Since its establishment more than 40 years ago, CHII LEE has been a professional plastic injection molding company. With strong manufacturing experience, it provides electronics industries with precision component supplies in consumer electronics, industrial system equipment, and smart appliances. Engineering materials they work with include diversified PC, ABS, nylon, flame-retardant compounds, and special-purpose polymers for high-performance electrical applications.

The company continuously works on improvement in internal tooling and automatic molding capabilities so that product development demands from the customer can be fulfilled as soon as possible. The production equipment supports high-cavity molds and multi-shot molding; therefore, high efficiency in output with dimensional accuracy is ensured. Besides this, CHII LEE has experience with cosmetic surface quality control and is reliable for visible parts featuring strict appearance criteria.

Equipped with strict test procedures, environmental durability tests, and assembly fit tests, having international quality certifications, by applying collaboration in engineering support and stability in high-volume manufacturing, CHII LEE has continued to supply tough, reliable molded components to brand-name electronics manufacturers.

Website: https://www.chiilee.com/en/

Year established: 1980

Location: China

Products:

• Consumer electronics housings
• Durable plastic fittings
• High-precision molded components
• Multi-component molding parts
• Customized engineering parts

Top 7: Ching-Sui

Ching-Sui has been a professional company in injection molding for plastic components in the electronics and electrical fields for many years. After many years of development, the Company constantly improves its manufacturing systems to support a wide range of precision parts across various fields such as communication devices, household electronics, industrial monitoring equipment, and so on. Their engineers can process specialty polymers for application in environments where high demands are put on safety, heat resistance, and dimensional reliability.

The firm works within a well-organized workflow that contains mold development, injection molding, and quality inspection. With automatic molding equipment and precision measuring instruments, Ching-Sui can guarantee good repeatability for large-scale production. They also support rapid tooling so that new electronic products can enter the marketplace more quickly.

Ching-Sui offers structure optimization in order to reduce costs and, in so doing, enhance durability by means of customer-oriented engineering communication. Manufacturing solutions help customers reach competitive performances, fast delivery of up-to-date electronics requiring compact structures of high reliability.

Website: https://en.chingsui.com/

Year established: 1982

Location: China

Products:

• Electronic connector parts
• Communication device components
• Industrial electronics housings
• Durable precision plastic parts
• Custom molded solutions

Top 8: Fine Tech

Fine Tech is a professional injection molding factory with strong R&D, modern production facilities, and a full solution for high-precision electronics components. The final result comes as precision plastic housings, protective shells, and functional small parts fabricated for consumer electronics and smart device applications. Its material coverage encompasses engineering plastics, including PC, PBT, PA, and high-temperature polymers.

Fine Tech operates a fully equipped manufacturing plant, complete with advanced injection molding machines, automated assembly lines, and in-house tooling. The quality system here makes sure that every product passes strict testing for impact resistance, dimensional stability, and surface protection with a view to meeting global electronics industry requirements. Besides, they support lightweight product designs without sacrificing mechanical strength.

In addition to molding, Fine Tech provides design validation and prototyping to support the customer’s effort in improving manufacturability. Capable of both small and large batch production, it is a partner you can rely on in a fast product launch cycle.

Website: https://www.finetech.com.hk/

Year established: 1999

Location: China

Products:

• Smart device plastic housings
• Protective electronic casings
• High-precision molded components
• Mold design and tooling
• Assembly & finishing services

Top 9: Fine Precision

Fine Precision develops and manufactures precision plastic parts, particularly for the electronics and high-technology industries. Relatively young as a company, it has, within a relatively short period, rapidly built up its reputation in both engineering design and state-of-the-art processing technologies. They have extensive experience in the production of micro-component parts that require tight tolerances and the best repeatability.

It integrates digital mold design, precision machining, and automatic molding systems to deliver the parts fast and steadily. Supporting finished product integration, surface treatment, and assembly processes is provided. Fine Precision adheres to tight quality control, with several stages of inspection that verify performance, including dimensional measurement, functional testing, and material certification.

With an agile production system, Fine Precision can offer flexible, cost-effective solutions for electronics manufacturers needing innovation, durability, and reliability in every molded part.

Website: https://www.fine-precision.com/

Year established: 2013

Location: China

Products:

• Micro-precision molded parts
• Consumer electronics components
• High-strength structural parts
• Functional molded elements
• Production assembly support

Top 10: Deep Mould

Deep Mould designs molds and provides precision injection molding services for such industrial areas as electronics. Strong knowledge in complex mold applications allows the company to make precision parts for smart devices, electrical components, and technical assemblies.

The company’s engineering team has broad experience in working with high-performance materials that call for superior dimensional control and long-term stability. The fully capable high-volume production facility maintains consistently high quality, equipped with advanced CNC machining centers, high-precision testing instruments, and automated molding equipment.

Deep Mould also provides rapid tooling services to speed up customers’ development and get into the marketplace as quickly as possible. Generally speaking, the most important link in their business chain is cooperating with customers. Supporting global electronics brands, Deep Mould insists on continuous design optimization and improves production efficiency to provide reliable, competitive, and timely delivery for demanding applications.

Website: https://www.deepmould.net/

Year established: 2016

Location: China

Products:

• Precision electronic plastic parts
• Custom injection molds
• Smart device structural components
• Technical assembly components
• Mold modification & repair services

3. Why Choose Chinese Injection Molding Suppliers for Electronics?

Before identifying a manufacturing partner, it’s crucial to understand why China remains one of the most competitive markets for high-precision molding of electronic components. The following set of frequently asked questions points toward some of the key advantages that create speed, quality, and value for global companies.

Q1: How do Chinese suppliers ensure high precision for electronic components?

The Chinese companies invest a lot in advanced injection molding equipment, automated production lines, and digital mold design technologies, including Moldflow simulation. Many of them operate clean manufacturing environments and set up tight quality controls such as dimensional measurement, environmental durability testing, and electrical safety compliance. These capabilities make sure that miniature and complex structural components meet the high standards of the electronics industry.

Q2: Do Chinese molding companies support fast product development cycles?

Most leading suppliers incorporate in-house mold manufacturing, rapid prototyping, and efficient production planning into their services, which significantly reduces the lead times from concept to mass production. Their engineering teams provide DFM guidance up-front during the development process for the product to limit rework and speed up project launches. This is very important, especially in fast-moving consumer electronics markets.

Q3: Are the services these businesses are providing competitive in terms of price, without compromising on quality?

A mature supply chain ecosystem in China implies that most certified engineering materials are available, supported by smooth logistics. With automated equipment, optimized tooling designs, and scalable capacity, one is guaranteed reliable quality with competitive pricing from a manufacturer. This is the reason global brands source their products from China.

Q4: How diverse is the product or service offering of Chinese injection molding suppliers?

Many of the enterprise services are vertically integrated, having a full chain of services right from mold design to molding, secondary operations of printing and coating, welding, and even assembly. This reduces coordination challenges so that consistency in quality is assured across stages; hence, higher efficiency is brought to customers with better performance of products.

4. Conclusion

Just like that great pair of shoes, an injection molding partner for your electronics products should fit comfortably, support your goals, and last for the long haul. You want a manufacturer that understands your product needs, values quality as much as you do, and delivers reliable, proven solutions. The best suppliers are transparent in their processes, with quality reports and open communications throughout each stage of collaboration. As your business grows, the right partner will stand beside you, ready to support new ideas and conquer new challenges together.