China’s leading duplex box suppliers include PAKORO Packaging, Suneco Box, Shanghai DE Printed Box, Shenzhen Zhibang Packaging, Guangzhou Huaisheng Packaging and Shanghai Custom Packaging.
Some companies on this list manufacture finished custom boxes, while others—such as Dongguan Xiaolong Packaging and Ningbo Sure Paper—primarily supply duplex board and other packaging paper materials.
The right supplier therefore depends on whether you need:
- Finished printed duplex boxes
- Duplex board sheets or rolls
- Folding cartons delivered flat
- Corrugated shipping boxes
- Premium rigid gift packaging
- Large-volume contract manufacturing
This guide compares ten Chinese suppliers by product focus, customization capabilities and suitable applications.
What Is a Duplex Box?
A duplex box is usually a folding carton or paperboard box made from coated duplex board. Duplex board is a multi-ply paperboard, commonly manufactured with a smooth white coated printing surface and a grey or white reverse side.
It is not simply “two pieces of paper glued together.”
The coated side provides a suitable surface for printed graphics, while the inner layers give the board stiffness and structural strength. Grey-back duplex board often contains recycled fibre, making it a cost-effective choice for many retail packaging applications.
Duplex board boxes are commonly used for:
- Cosmetics and personal-care products
- Pharmaceutical packaging
- Food and confectionery packaging
- Small electronics and accessories
- Toys and household products
- Garments and lightweight retail products
- E-commerce product packaging
Compared with folding box board, or FBB, grey-back duplex board is generally more economical. However, FBB normally offers a cleaner appearance and better performance when both sides of the carton need to be printed.
Top 10 Duplex Box Suppliers in China at a Glance
| Company | Location | Main focus | Best suited for |
|---|---|---|---|
| PAKORO Packaging | Shenzhen | Custom printed boxes and complete packaging | Overseas brands requiring custom production |
| Dongguan Xiaolong Packaging | Dongguan | Duplex board and paperboard materials | Packaging converters and printing factories |
| Suneco Box | Qingdao | Corrugated and printed paper boxes | Shipping, food and agricultural packaging |
| Shanghai DE Printed Box | Shanghai | Folding cartons, rigid boxes and corrugated packaging | Custom retail packaging projects |
| Shenzhen Zhibang Packaging | Shenzhen | Custom paper packaging | Branded folding cartons and gift boxes |
| Guangzhou Huaisheng Packaging | Guangzhou | Handmade and premium gift boxes | Cosmetics, jewellery and luxury products |
| Shanghai Custom Packaging | Shanghai | Custom paper and rigid packaging | Brands needing design and structural support |
| Unico | China | Custom cardboard packaging | General retail and e-commerce packaging |
| Shandong Xinxinghua | Shandong | Paperboard and carton production | High-volume packaging requirements |
| Ningbo Sure Paper | Ningbo | Duplex board, FBB and specialty paper | Buyers sourcing packaging paper materials |
This is an editorial sourcing guide rather than an audited industry ranking. Buyers should verify each supplier’s current certifications, production capacity, MOQ and export experience before placing an order.
How We Evaluated These Suppliers
The companies were selected using criteria that matter to international packaging buyers:
Material capability
The supplier should be able to recommend a suitable board grade, thickness and coating based on the product’s weight, dimensions and distribution environment.
Printing and finishing
Important capabilities may include:
- CMYK and Pantone printing
- Matte or gloss lamination
- Soft-touch or anti-scratch lamination
- Hot foil stamping
- Embossing and debossing
- Spot UV
- Window patching
- Die-cutting and automatic gluing
Structural customization
A capable manufacturer should be able to create or modify a dieline, test the box structure and recommend an insert when additional product protection is required.
Quality control
Buyers should examine color consistency, cutting accuracy, folding performance, glue strength, surface finishing and carton dimensions.
Export support
For international orders, suppliers should understand export packing, commercial documentation, palletization and shipping terms such as EXW, FOB, CIF and DDP.
Sustainability documentation
If environmental claims are important, request current documentation instead of relying only on website statements. This may include FSC chain-of-custody documentation, recycled-content information and relevant material test reports.
1. Dongguan Xiaolong Packaging Industry Co., Ltd.
The top spot goes to Xiaolong, a leading duplex board manufacturer known for high‑quality coated boards. Their duplex boxes offer exceptional strength, durability and smoothness, and the company maintains competitive pricing with plenty of stock and flexible customization. If you need reliable quality for cosmetics, food, or electronics, Xiaolong is a safe bet.
| Website | Phone | |
|---|---|---|
| xiaolongpackaging.com | 0769‑22688131 | tina@xiaolongpackaging.com |
2. Suneco Box (Hongdu Paper)
Suneco Box offers a professional manufacturing service for cardboard, mailer and corrugated boxes. They provide free design assistance and can customize printing with quick turnaround times. Their packaging meets European and American testing requirements—a reassuring sign for export‑ready products. Customers can reach them by phone or WhatsApp to discuss projects.
| Website | Phone | |
|---|---|---|
| sunecobox.com | +86‑159‑0118‑5388 | sales@sunecobox.com |
3. PAKORO Packaging (Shenzhen)
As your packaging specialist, I know you’re looking for confidence and transparency. PAKORO ticks those boxes by offering certified quality, exceptional strength, transparent dealings and affordable excellence. Our duplex boxes use strong paperboard and precise construction to give your products premium protection. We value open communication and provide honest quotes with no hidden fees.
| Website | Phone | |
|---|---|---|
| pakoro.com | +86‑150‑9981‑7100 | bpf2000@foxmail.com |
Why choose us? You’ll appreciate our ISO‑certified quality control, clear pricing, and custom design support. Whether you need a thousand boxes or a million, we deliver on time and within budget.
4. Shanghai DE Printed Box
This Shanghai‑based manufacturer excels in custom printed corrugated boxes and folding cartons. They’re known for providing reliable shipping boxes, moving boxes and packaging boxes for various industries. Their dual email contacts—one for sales and one for design—make it easy to get personalized service.
| Website | Phone | Emails |
|---|---|---|
| deprintedbox.com | +86‑185‑1619‑4288 | kris@deprintedbox.com / janewu@deprintedbox.com |
5. Shenzhen Zhibang Packaging
Zhibang is a top custom packaging factory with 20+ years of experience and a global client base. They ship worldwide, maintain ISO‑certified quality and offer end‑to‑end support for your packaging projects. If sustainable materials matter to your brand, they’re a strong candidate; the company focuses on eco‑friendly solutions and competitive pricing.
| Website | Phone | |
|---|---|---|
| zhibangpackaging.com | +86‑135‑7086‑6244 | info@zhibangpackaging.com |
6. Guangzhou Huaisheng Packaging (GiftPackagingBox.com)
Huaisheng positions itself as one of China’s most cost‑effective handmade gift box suppliers. They use advanced printing machines and eco‑friendly materials, and they have an integrated quality‑control system with free samples. With 17 sales staff and 40 skilled workers, they offer reasonable pricing and high quality across custom gift boxes, cosmetic packaging, and more.
| Website | Phone | |
|---|---|---|
| giftpackagingbox.com | +86‑181‑2224‑0089 | market@giftpackagingbox.com |
7. Shanghai Custom Packaging Co., Ltd.
Also known as Box Packing Solution, this company provides custom paper packaging, rigid boxes and corrugated cartons. They emphasize responsibility, creativity and quality and work closely with clients to develop packaging that stands out. Their comprehensive website showcases examples and offers design guidance.
| Website | Phone | |
|---|---|---|
| boxpackingsolution.com | +86‑150‑0072‑3435 | marketing@shpkg.com |
8. Unico (ChinaPackagingBox.com)
Unico positions itself as a one‑stop shop for custom packaging solutions, offering corrugated packaging, cardboard boxes and more. They seek to empower entrepreneurs with highly competitive prices, using recyclable materials and advanced printing technologies. Certifications like ISO 9001 and ISO 14001 support their commitment to quality and environmental management.
| Website | Phone | |
|---|---|---|
| chinapackagingbox.com | +86‑138‑1120‑5110 | info@chinapackagingbox.com |
9. Shandong Xinxinghua Environmental Protection Technology Materials Co., Ltd.
If you need large‑scale production, Xinxinghua is a strong choice. This carton packaging company integrates R&D, production, marketing and sales, producing corrugated boxes, paper boxes, cake and fruit boxes. They operate from a 270,000 m² factory with more than 600 employees and advanced paperboard production lines, giving them high productivity and rich experience since their founding in 1995.
| Website | Phone | Emails |
|---|---|---|
| xinxinghuapack.com | +86‑187‑6375‑6839 | jackshi@xinghuapackaging.com / regina@lyxinghua.com |
10. Ningbo Sure Paper Co., Ltd.
Sure Paper is a specialist in duplex board boxes crafted from high‑quality, sturdy and sustainable materials. Their boxes provide superior strength and rigidity while offering a smooth, glossy surface that’s perfect for branding. The company highlights eco‑friendliness and international packaging standards, and they serve businesses of all sizes.
| Website | Phone | |
|---|---|---|
| sure-paper.com | +86‑178‑5583‑2384 | stellafeng@sure-paper.com |
Duplex Board vs Folding Box Board vs Corrugated Board
These materials are not interchangeable. The right option depends on appearance, product weight and distribution conditions.
| Material | Typical structure | Main advantages | Common applications |
|---|---|---|---|
| Grey-back duplex board | White coated front with grey reverse | Economical, printable and reasonably stiff | General retail cartons, household goods and toys |
| White-back duplex board | White coated front with lighter reverse | Cleaner internal appearance | Cosmetics, food and consumer products |
| Folding box board | Multi-layer virgin-fibre board, usually cleaner and whiter | Better print quality, stiffness and presentation | Cosmetics, pharmaceuticals and premium retail cartons |
| SBS paperboard | Solid bleached paperboard | Smooth white surface and premium printing | Beauty, healthcare and high-end retail packaging |
| Corrugated board | Linerboard with fluted middle layer | Better cushioning and shipping strength | Mailer boxes, shipping cartons and heavier products |
| Greyboard rigid box | Thick board wrapped with printed paper | Premium appearance and strong presentation | Gift boxes, jewellery and luxury products |
How to Choose a Duplex Box Manufacturer in China
Before requesting quotations, prepare a clear specification containing the following information.
1. Finished box dimensions
Provide the finished length, width and height in millimetres. State whether the dimensions are internal or external.
2. Product information
Tell the supplier:
- Product dimensions
- Product weight
- Number of products per box
- Whether the product is fragile
- Whether an insert is required
The product weight helps the manufacturer recommend the correct paperboard thickness and box structure.
3. Required quantity
Request prices at several quantities when possible, such as:
- 1,000 pieces
- 3,000 pieces
- 5,000 pieces
- 10,000 pieces
Higher quantities often reduce the unit price because tooling, printing setup and machine preparation costs are distributed across more boxes.
4. Material specification
Do not request only “duplex board.” Ask the supplier to confirm:
- Board type
- Grey back or white back
- Grammage in gsm
- Caliper or thickness
- Recycled content, if relevant
- Food-contact compliance, if required
5. Printing requirements
Confirm whether printing is required:
- Outside only
- Inside and outside
- In CMYK
- In Pantone colors
- With white ink or metallic ink
- With a specific color tolerance
6. Surface finishing
List all required finishes, including lamination, foil stamping, embossing, spot UV or window patching.
7. Packing and delivery terms
Ask the supplier to include:
- Pieces per export carton
- Carton dimensions
- Gross weight
- Total carton quantity
- Estimated total volume
- Production lead time
- EXW or FOB price
- Optional CIF or DDP freight quotation
Questions to Ask Before Placing an Order
Ask every shortlisted manufacturer these questions:
- Are you producing the boxes directly or outsourcing any processes?
- Which duplex board grade do you recommend for this product?
- Can you provide the board grammage and thickness?
- What is your minimum order quantity?
- Is the tooling fee included in the quotation?
- Can you produce a blank sample before the printed sample?
- How will you control printing color during mass production?
- Can you provide current certification and test documents?
- How are defective boxes handled?
- What are the production and shipping lead times?
- Can you provide carton count, gross weight and total CBM?
- Can you quote both FOB and DDP delivery?
Common Sourcing Mistakes to Avoid
Choosing only by unit price
A low unit price may exclude tooling, lamination, inserts, export cartons or quality inspection. Compare quotations based on the complete specification.
Using insufficient board strength
A thin board may bend, collapse or open during transport. The supplier should evaluate the product weight and box dimensions before confirming the material.
Skipping the physical sample
Digital artwork cannot confirm board stiffness, folding performance, glue strength or actual color. Approve a physical sample before mass production.
Providing low-resolution artwork
Supply vector logo files and high-resolution images. Keep important text and graphics away from cutting and crease lines.
Failing to confirm packing data
A box delivered flat may have a very different shipping cost from a fully assembled box. Request estimated export-carton data before placing the order.
Frequently Asked Questions
What is a duplex box?
A duplex box is generally a folding carton made from coated duplex paperboard. The board normally has a smooth printable surface and either a grey or white reverse side.
What is the difference between grey-back and white-back duplex board?
Grey-back duplex board is usually more economical and often contains recycled fibre. White-back duplex board provides a cleaner internal appearance and may be preferable when the inside of the carton is visible.
Is duplex board suitable for food packaging?
It may be used for secondary food packaging, but direct food contact requires suitable food-grade materials, coatings and compliance documentation. Buyers should clearly tell the supplier whether the board will touch the food.
What grammage is commonly used for duplex boxes?
The correct grammage depends on the box dimensions, product weight and structure. Many folding-carton applications use paperboard within a general range of approximately 250–450 gsm, but the manufacturer should confirm the specification after reviewing the product.
Can duplex boxes be printed on both sides?
Yes, but the reverse side of grey-back duplex board does not provide the same print appearance as the coated white surface. White-back duplex board, FBB or SBS may be more suitable for high-quality internal printing.
What is the typical MOQ for custom duplex boxes in China?
Many custom manufacturers start at approximately 500–1,000 pieces per design, although the exact MOQ depends on the box size, printing method, material and finishing processes.
How long does custom production take?
A custom sample commonly takes around 5–10 days. Mass production may require approximately 15–25 days after the artwork and sample are approved. Complex finishes and high-volume orders may require more time.
Should I choose duplex board or corrugated board?
Choose duplex board for lightweight retail cartons that require high-quality printed graphics. Choose corrugated board when cushioning, stacking strength or shipping protection is more important.
Can a manufacturer create the dieline for me?
Yes. Most custom box manufacturers can create a dieline after receiving the product dimensions, product weight, preferred box style and internal arrangement.
How can I verify a Chinese duplex box supplier?
Request its business information, factory videos, comparable samples, current certification documents and a written quotation. For larger orders, consider arranging a factory audit or pre-shipment inspection.
Final Recommendation
The best duplex box manufacturer in China depends on what you are purchasing.
- Choose a custom packaging converter such as PAKORO when you need finished printed boxes, inserts and decorative finishes.
- Choose a corrugated packaging specialist when shipping protection is the main priority.
- Choose a paper supplier such as Dongguan Xiaolong Packaging or Ningbo Sure Paper when you need duplex board sheets or rolls for your own converting operation.
- Choose a rigid box specialist when premium presentation is more important than flat-packed efficiency.
Before making a final decision, send the same specification to several shortlisted suppliers and compare material grade, printing, tooling, quality control, export packing and delivery terms—not only the unit price.
If you need custom duplex boxes for cosmetics, food, electronics, apparel or retail products, contact PAKORO with your box dimensions, quantity, product weight and reference images. The packaging team can recommend a suitable structure, material and finishing combination for your project.
