top-10-plastic-manufacturing-companies-china

Introduction

China has thousands of plastic manufacturing companies, but they do not all solve the same problem. A household-goods importer needs a different partner from an automotive Tier 1 supplier. A company with a finished product idea may need industrial design, mold development, injection molding, assembly and retail packaging; another buyer may only need a production mold.

This guide compares ten Chinese manufacturers with clearly different strengths. The list is an editorial shortlist, not a ranking by revenue, factory size or production volume. Company locations and capabilities were checked against the manufacturers’ official websites in October 2026. Buyers should still audit the shortlisted factory and verify the certifications, production scope and test reports required for their own product.

How We Selected These Plastic Manufacturing Companies

“Top” can be misleading in manufacturing. The largest plastic manufacturers may be the wrong choice for a modest private-label program, while a consumer-products factory may not be suitable for a safety-critical automotive component.

We included manufacturers whose official sites identify a physical operating location in China and describe relevant capabilities such as mold making, injection molding, product development, secondary processing or assembly. The comparison also reflects the purchasing task each company appears best equipped to handle. That buyer fit is our editorial assessment; factual capability statements come from the linked company websites.

This article concentrates on manufacturers of plastic products, molds and injection-molded parts. It does not treat resin producers, plastic film manufacturers or injection-molding-machine builders as directly interchangeable suppliers.

Top 10 Plastic Manufacturing Companies in China: Quick Comparison

*“Best fit” is an editorial assessment based on the capabilities each company publishes. It is not a certification, endorsement or guarantee of project performance.

1. DAQIDA: Plastic Products Manufacturer in Yiwu

DAQIDA is based in Yiwu, Zhejiang, a city closely associated with China’s small-commodity supply chain. Its public company information describes product structural design, development, customized manufacturing and wholesale across plastic goods, household articles, hardware products and selected medical-device products. The factory lists plastic injection molding, blow molding, stamping and lathe processing among its production capabilities.

Why DAQIDA Is Recommended for Consumer Products

DAQIDA is the recommended company in this guide for buyers developing consumer products rather than isolated technical components. Its range already covers wholesale household supplies, custom kitchenware and other market-ready products. That gives an importer two practical routes:

• select an existing product from the wholesale plastic products range for resale or private labeling;
• develop a custom product through OEM/ODM, plastic mold development and production.

This is especially relevant to Amazon sellers, distributors, supermarkets and private-label brands that need packaging, product variations and repeat wholesale supply alongside molding. Buyers can review DAQIDA’s custom plastic products before deciding whether a standard item or a new mold makes more commercial sense.

DAQIDA should not be presented as one of China’s biggest plastic manufacturers. Its stronger position is more specific: it is a Yiwu plastic manufacturer focused on consumer goods and flexible product commercialization. For a technically demanding automotive tool or a semiconductor-equipment component, a specialist elsewhere in this list may be a better match.

Verified facts: Yiwu location, consumer-product categories and the listed manufacturing processes come from DAQIDA’s About Us page and current category pages. Project-specific capacity, compliance and lead time should be confirmed in writing.

2. TK Group: One-Stop Injection Molding Solutions

TK Group traces its mold-manufacturing history to Hong Kong in 1983 and is listed on the Hong Kong Stock Exchange. Its official website identifies production bases in Shenzhen, Huizhou, Suzhou and Vietnam. Published services cover structural analysis, mold development, product and mold validation, injection molding, mass production and surface treatment.

Its application fields include consumer electronics, smart-home products, medical devices and personal care. TK is a credible candidate when the program needs mature tooling systems, validation and large-scale component production rather than a simple wholesale product.

3. Silver Basis: Precision Molds and Structural Parts

Shenzhen Silver Basis Technology positions itself as a one-stop smart-manufacturing solution provider. Its public business groups include automotive products, precision molding, metal products and advanced equipment. The company’s official material identifies precision injection molding and large precision die-and-mold technology as core capabilities.

Silver Basis belongs on a shortlist for automotive molds, structural parts and high-precision industrial work. It is less directly comparable with DAQIDA’s ready-to-market household product model, which is exactly why buyers should define the job before comparing quotations.

4. Combine Will: Consumer Products and Corporate Premiums

Combine Will is an integrated ODM/OEM manufacturer of consumer products, toys and corporate premiums. Company publications describe in-house product design, mold making, plastic injection, die casting and manufacturing operations in China and Southeast Asia.

For global brands ordering promotional products, toys or complex consumer programs at scale, this breadth can be useful. Smaller importers should confirm minimum order quantities, development fees and whether their order size fits the group’s production model.

5. Hongqing: Product Development and Injection Molding

Dongguan Hongqing Plastic Mold Products describes an end-to-end workflow covering industrial design, mechanical and electronic development, prototypes, mold making, injection molding, surface finishing, assembly, packing and shipping. Its published product fields include smart home, personal care, pet products, lighting, appliances and electronics housings.

Hongqing is worth considering when a product combines molded enclosures, electronics and assembly. Its website also explicitly addresses mold ownership, NDAs and factory audits, three terms that should appear in any serious OEM agreement.

6. HJY Mould: Multi-Material and Precision Injection Molding

Dongguan Hongjinyuan Mould, trading as HJY Mould, states that it provides mold design and manufacturing, precision injection molding and component assembly. It publishes capabilities in multi-material and multi-color molding, insert overmolding, high-temperature materials and both smaller and larger production runs.

The company’s stated application areas include consumer electronics, personal care, medical products, connectors, smart-home products and automotive parts. This makes HJY a more technical option for complex molded components than for off-the-shelf wholesale goods.

7. HOPE Precision: Precision Molds and Plastic Components

HOPE Precision is based in Dongguan and describes its work as mold design, precision plastic and hardware processing, injection molding and sub-assembly. It also highlights battery housings and energy-storage components.

Buyers evaluating HOPE should focus their audit on the exact press range, resin experience, inspection plan and assembly scope required by the part. Its published profile suggests a strong fit for precision component programs where tooling and molding need to stay closely coordinated.

8. HANZLY: Automotive and 3C Plastic Components

Dongguan HANZLY Plastic Mold Products publishes three main service groups: mold manufacturing, injection molding and secondary processing. Its product areas include new-energy accessories, automotive interior and exterior parts, and 3C consumer products.

HANZLY is best compared with automotive and electronics-oriented plastics companies, not with a general housewares wholesaler. Buyers should ask which processes are completed in-house, which are subcontracted, and what traceability accompanies secondary operations such as spraying or printing.

9. JMT Mould: Automotive, Appliance and Household Molds

Taizhou Huangyan JMT Mould is located in Huangyan, Zhejiang. Its official profile says the company designs and manufactures molds for automotive, home-appliance and household industries, with injection molding equipment used in its operations.

JMT is principally a mold specialist. It may suit a buyer that has its own molding network or needs a production tool with installation and technical support. A buyer seeking finished, packed consumer goods should establish whether JMT or another party will own molding, assembly, packaging and final inspection.

10. Sino Mould: Injection Molds and Turnkey Molding Systems

Sino Mould is also based in Huangyan, Taizhou. Its official site presents the company as an injection-mold supplier and describes broader injection-molding system solutions, including molds, machinery and production-management support.

That scope can make Sino useful for customers setting up or expanding a molding line. It is a different purchasing proposition from ordering finished products from a wholesale manufacturer. Buyers should define whether the contract covers only the mold, trial production, a complete cell or ongoing part supply.

How to Choose a Plastic Manufacturing Company in China

The best plastic manufacturing company is the one whose normal workflow matches your product and order model. Start with these six checks.

1. Decide Whether You Need a Product Supplier or a Mold Specialist

Some plastic companies sell completed, packaged goods. Others make molds or molded parts for another factory to assemble. Write down who will own product engineering, tooling, molding, decoration, assembly, packaging and shipment before requesting prices.

2. Send the Same RFQ Package to Every Shortlisted Factory

Include 2D drawings, 3D files, resin and color requirements, expected annual volume, target market, packaging, inspection standard and regulatory requirements. Quotations are not comparable when suppliers make different assumptions.

3. Confirm Mold Ownership and Maintenance

The purchase agreement should state who owns the mold, where it will be stored, what maintenance is included, how many shots it is designed for, and whether it can be transferred. Ask for a mold specification and maintenance record, not only photographs.

4. Audit the Processes That Matter

A polished website does not show whether your part is made in-house. During an on-site or third-party audit, verify the tool room, molding machines, material control, inspection equipment, assembly line and warehouse. Ask the supplier to identify all subcontracted processes.

5. Approve Samples Against a Written Standard

Use a signed golden sample and an inspection document that covers dimensions, appearance, function, packaging and acceptable defect limits. For food-contact, medical, child-use or other regulated products, verify the applicable reports for the exact material and finished product.

6. Compare Total Landed Cost, Not Only Unit Price

Tooling, secondary processing, packaging, inspection, rejects, freight and rework can change the result. A low piece price is not a saving if the mold is difficult to maintain or the product arrives without reliable quality records.

Conclusion

China’s plastics industry company categories range from large precision tooling groups to focused manufacturers of plastic products. TK Group and Silver Basis stand out for complex, high-precision programs. JMT and Sino Mould are credible names for tooling-led projects. Several Dongguan suppliers offer integrated mold and component manufacturing.

For household, kitchen, safety and e-commerce products, DAQIDA offers a more direct path from product selection or development to molding, customization and wholesale supply. Buyers can review DAQIDA’s OEM & ODM manufacturing process or contact the Yiwu factory with a product brief, target quantity, market and packaging requirements.