The die casting companies in China that overseas buyers work with fall into two groups: large listed casters such as Guangdong Hongtu, Wencan and IKD that serve automotive programs, and custom job shops that take mixed, lower-volume orders with machining included. Pick the group that fits your volume first, then verify the individual supplier.

Disclosure: Elite Mold Tech publishes this guide and is included in the list. Numbers are for reference, not a ranking.

How This List Was Built

Every company below was checked against its own website or its stock exchange profile in September 2026. We included only facts those sources state, such as location, founding year, listing, processes and certifications. We left out revenue claims and customer lists we could not confirm.

The list mixes two supplier types on purpose, because the right partner for a 5,000-part enclosure order is rarely the right partner for a 500,000-part EV bracket program.

At a Glance

Custom and Export-Focused Die Casting Suppliers

1. Elite Mold Tech

Elite Mold Tech is based in Tangxia, Dongguan. It offers 다이캐스팅 서비스  in aluminum, zinc and magnesium alongside CNC 가공, injection molding, sheet metal and stamping, so a mixed bill of materials can come from one supplier. Its manufacturing network holds ISO 9001:2015, ISO 14001, IATF 16949:2016 and ISO 13485 certification.

Best for: engineering-led custom parts from prototype to production, where casting is one process among several.

2. GC Precision Mold

GC Precision Mold was established in 1999 and is headquartered in Dongguan. It offers aluminum, zinc and magnesium die casting, plus aluminum gravity casting, bronze sand casting and CNC machining, and states ISO 14001 and IATF 16949 certification.

Best for: custom die casting across several alloys, with the mold and parts from one shop.

3. Ningbo Innovaw Mechanical

Innovaw lists an office in Ningbo and describes itself as supplying aluminum and zinc die casting to global OEMs since 1998. Its processes span high-pressure, low-pressure, gravity, investment and sand casting, with CNC machining, and it states IATF 16949, ISO 14001 and ISO 45001 certification.

Best for: buyers who want one contact managing several casting methods.

4. Dongguan Sincere Tech

Sincere Tech is a Dongguan manufacturer offering custom plastic injection molds, die casting, part design and prototyping.

Best for: products that pair molded plastic housings with die cast metal parts.

Large Listed Automotive Die Casters

These die casting companies are publicly listed, run multiple plants and build most of their volume around automotive programs.

5. Guangdong Hongtu Technology

Hongtu was established in December 2000 and is headquartered in Gaoyao, Zhaoqing, in Guangdong. It listed on the Shenzhen Stock Exchange in 2006 (002101) and runs die casting bases in Gaoyao, Nantong and Wuhan. Its aluminum die castings serve automotive, telecom and electromechanical products, and its Wuhan base reports IATF 16949, ISO 9001 and ISO 14001 certification.

Best for: automotive and telecom programs with high, stable volumes.

6. Wencan Group

Wencan listed on the Shanghai Stock Exchange in 2018 (603348) and specializes in automotive aluminum castings using high-pressure, low-pressure and gravity casting. It reports more than 20 production bases, including plants in Mexico, Hungary, Serbia and France after acquiring the French brake-casting maker Le Bélier.

Best for: automotive structural castings where supply from outside China also matters.

7. IKD Co., Ltd.

IKD was founded in December 2003 in Ningbo. It focuses on automotive aluminum precision die castings and runs the full chain in-house, from tooling design through casting, heat treatment, machining, surface treatment and assembly. The company highlights high-vacuum die casting and supplies large multinational auto parts makers.

Best for: Tier-1 automotive components in aluminum.

8. Ningbo Tuopu Group

Tuopu was founded in 1983 and is headquartered in Ningbo, listed on the Shanghai Stock Exchange. Its product range includes lightweight body structures such as integrated die-cast front and rear floor panels and battery pack structural components.

Best for: large structural EV castings.

9. Ningbo Xusheng Group

Xusheng was founded in 2003 in Ningbo and is listed on the Shanghai Stock Exchange (603305). It develops and produces precision aluminum alloy parts for customers in China and abroad.

Best for: precision aluminum components for EV programs.

10. Chongqing Millison Technologies

Millison was incorporated in 2001 and is headquartered in Chongqing, listed on the Shenzhen Stock Exchange (301307). It produces precision aluminum castings for automotive, telecommunications and energy storage applications.

Best for: telecom and energy storage housings.

Processes and Alloys You Will Be Offered

Most die casting suppliers in China quote one or more of three processes:

• High-pressure die casting (HPDC) injects molten metal into a steel die at high speed. It suits thin walls and high volumes, and it is the default for aluminum die casting of housings, brackets and heat sinks. Vacuum-assisted HPDC reduces trapped gas for structural parts.
• Low-pressure casting fills the die slowly from below. It produces sounder castings for wheels and structural parts, with longer cycles.
• Gravity casting pours metal into a permanent mold without pressure. It suits thicker, lower-volume parts.

Aluminum die casting dominates. ADC12 and A380 are the most common grades, and between them they cover most housings, brackets and heat sinks bought from China. Zinc suits small, detailed parts with fine surface finish, such as hardware and connectors. Magnesium is chosen when weight matters most. Confirm which alloys a shop melts routinely, since a supplier casting an alloy every day usually controls it better than one that melts it occasionally.

Quality Checks to Expect

Die castings carry a built-in risk: porosity, meaning small gas or shrinkage voids inside the metal. A capable supplier manages it with process control and verifies it with inspection. Ask whether these are routine:

• X-ray or CT inspection of critical sections, at least during sampling
• CMM measurement of machined features and datums
• Leak testing for parts that hold air or fluid, and impregnation to seal porosity where allowed
• Alloy certificates from the melt, showing chemistry against the standard
• PPAP or a first article report before production release, depending on your industry

If a supplier cannot describe how it detects and controls porosity, keep looking.

Which Supplier Type Fits Your Order?

Large listed casters run heavily automated cells built for long automotive programs. They are strong on process control, but a 2,000-part order for a new customer is rarely a priority for them.

Custom job shops quote smaller runs, accept design changes, and usually add machining, finishing and assembly. Their scale is smaller, so check capacity before committing a growing program to one.

Our view: for launch volumes and mixed parts, start with a custom supplier that can machine and finish in-house; move a stable, high-volume automotive part to a specialist caster only once the design and demand are proven.

Die Casting Regions in China

• Guangdong (Pearl River Delta): Dongguan, Foshan and Shenzhen host many custom die casting manufacturers and toolmakers close to electronics supply chains.
• Zhejiang (Ningbo): a dense cluster of automotive aluminum casters, including several listed companies above.
• Chongqing and inland hubs: close to major vehicle assembly plants.

Region matters less than capability, but clusters make sub-suppliers such as tooling, impregnation and plating easier to find.

How to Verify Die Casting Companies in China

Supplier verification takes a few days and prevents most sourcing failures.

1. Check the business registration. China’s official National Enterprise Credit Information Publicity System  shows a company’s registered name, scope and status. The name on your contract and invoice should match it.
2. Confirm certificates independently. Ask for certificate numbers and the issuing body. IATF 16949 certificates can be checked through the IATF’s global oversight  system and the certification body.
3. Audit the factory, in person or through a third party, and confirm that casting, trimming and machining happen where the quote says.
4. Approve samples properly. Require a first article report, X-ray or CT results on critical castings, and alloy certificates.
5. Put tool ownership in writing, including storage, maintenance and your right to move the tool.

Many listicles skip steps 1 and 2. They take little time and help catch trading companies posing as factories.

What a Good Die Casting Tool Quote Includes

The mold is the largest single investment in a die casting program, and quotes from different die casting suppliers are often not comparable. A useful tooling quote states:

• Die steel for cavities and cores, usually a hot-work grade such as H13, and its hardness
• Number of cavities and any slides or core pulls
• Expected tool life in shots, and what maintenance that assumes
• Whether the trim die, which removes the runner and flash, is included or priced separately
• Machining fixtures and inspection gauges, if the part needs them
• Number of sample rounds included before extra charges apply

A cheaper tool that omits the trim die or fixtures often ends up costing more. Ask for the same scope from every supplier before comparing prices.

Engineering Support and Communication

Good Chinese die casting partners send a DFM report before cutting steel, flagging thick sections that will shrink, missing draft and features that need slides. They also agree on a change process. Every revision gets a price and a date first.

Time zones are manageable when there is a named engineer, a shared schedule and weekly updates with photos or video of samples. Delays usually come from unclear ownership of questions, not from distance.

Direct Sourcing or a Sourcing Agent?

Buyers can reach Chinese die casting suppliers directly, or through a sourcing agent who handles introductions, audits and follow-up for a fee. Going direct gives you engineering contact and full visibility of who makes the part. An agent can help with first-time audits, language and logistics, but adds cost and a layer between you and the factory. If you use an agent, insist on knowing the actual factory name and verifying it yourself.

What to Send With Your RFQ

A complete request gets comparable quotes from several die casting manufacturers. Include:

• 3D model (STEP) and 2D drawing with tolerances, datums and machined surfaces marked
• Alloy and standard, with any allowed equivalents
• Annual volume, typical order size and expected program life
• Finish requirements, such as powder coat, anodize or plating
• Inspection requirements: X-ray, leak test, CMM report, PPAP level
• Packaging, destination and preferred Incoterms

Ask every supplier to quote tooling, piece price, machining and finishing as separate lines. Bundled prices hide where the cost sits and make comparisons unreliable.

Red Flags During Supplier Verification

• The company name on the quote differs from the registered name or the bank account holder
• Certificates without numbers, or with an issuing body that cannot confirm them
• Reluctance to allow a factory visit or a video audit of the casting floor
• A quote far below others with no explanation
• No clear answer on who owns the tool

Any one of these calls for more checking. Two or more usually mean walking away.

Cost, Lead Time and Risk

Tooling is the largest upfront cost, and it is usually paid in stages: a deposit at order and the balance after sample approval. Piece price depends on alloy, weight, machining and finish more than on the casting itself.

For lead time, allow for mold design, mold build, sampling and approval before production, and ask for a dated schedule rather than a single number of weeks.

Shipping terms deserve the same care. Most custom die casting is shipped by sea for production and by air for samples. Agree on Incoterms such as FOB or DDP in the contract, specify packaging that protects machined surfaces, and confirm who handles export documents.

Trade rules change. Tariffs on Chinese-origin castings imported into the United States, including Section 301 duties, have shifted several times, so confirm the current duty for your classification with a customs broker before you finalize landed cost.

Alloy choice also affects cost and availability; our comparison of A380, ADC12 and A360  explains why many Chinese foundries default to ADC12.

자주 묻는 질문

Which region in China is best for die casting?

No single region is best. Guangdong, around Dongguan, Foshan and Shenzhen, has many custom casters and toolmakers near electronics supply chains. Ningbo in Zhejiang is a major automotive aluminum casting cluster. Choose the supplier’s capability and quality system first, then consider region for logistics and sub-supplier access.

How do I verify a Chinese die casting supplier?

Check the company’s registration on China’s official enterprise credit system, confirm certificate numbers with the issuing body and the IATF database, and audit the factory directly or through a third party. Then approve first article samples with inspection reports and alloy certificates before releasing production orders.

What is the minimum order for die casting in China?

It varies by supplier type. Large automotive casters are built for long, high-volume programs and may decline small orders. Custom job shops usually accept much smaller runs and sometimes prototype quantities. Because tooling cost is fixed, very small orders carry a high per-part price whichever supplier you choose.

How long does a die casting mold take in China?

Allow for mold design, mold build, first samples and approval before production starts. Timing depends on part size, number of slides and cavities, and how quickly samples are approved. Ask each supplier for a dated schedule with sample and approval milestones rather than relying on a single lead-time figure.

Who owns the die casting mold?

Normally the buyer who pays for the tool owns it, if the contract says so. Record tool ownership, storage, maintenance, expected shot life and your right to move the mold to another factory at any time. Without that clause, retrieval is hard.

Are die castings from China good quality?

Quality ranges widely, from world-class automotive suppliers to small shops with little process control. The country of origin says less than the individual supplier’s certifications, inspection methods and track record. Verify registration and certificates, audit the factory, and approve samples with X-ray and dimensional reports before trusting any supplier with production.

Choosing Among Die Casting Companies in China

The strongest die casting companies in China differ more by type than by rank. Match the supplier to your volume and part mix, verify registration and certificates yourself, and lock tool ownership into the contract. To discuss a custom part, review the 금속 부품 생산  options at 엘리트 몰드 기술.