Poly mailer manufacturers in China offer different product structures, printing capabilities, order quantities, and levels of customization.Finding a poly mailer supplier is easy. Finding one that can consistently meet your requirements for size, film thickness, printing, closure design, order quantity, and delivery schedule requires a more careful comparison.China has manufacturers serving many types of buyers, from growing ecommerce brands purchasing custom printed mailers to distributors and fulfillment companies sourcing large quantities of shipping bags. A factory suited to a large courier project may not be the best choice for a smaller branded packaging order.This guide introduces ten China-based suppliers with active company websites and publicly displayed poly mailer products. It also explains what buyers should verify before requesting samples or placing a bulk order.
Editorial note: This article is a sourcing reference based on information published on the suppliers’ websites as of September 2026. The numbered order is not an independently verified ranking of product quality. Buyers should confirm current capabilities, certifications, minimum order quantities, lead times, and commercial terms directly with each supplier.
Quick Comparison of 10 Poly Mailer Manufacturers in China
| No. | Manufacturer | Location | Main Focus | Website |
|---|---|---|---|---|
| 1 | WH Packing | Huizhou, Guangdong | Large-volume custom poly mailers | Visit website |
| 2 | RHK Packaging | Dongguan, Guangdong | Custom poly mailers for ecommerce and B2B buyers | Visit website |
| 3 | Zhongzhou Pack Group | Guangzhou, Guangdong | Poly, bubble, plastic, and paper mailing bags | Visit website |
| 4 | Hangzhou Chunmei Packaging | Hangzhou, Zhejiang | Courier and high-volume mailing bags | Visit website |
| 5 | Tianjin Unipack | Tianjin | Poly mailers and flexible packaging | Visit website |
| 6 | Guangdong Chuangxin Packing Group | Guangdong | Poly mailers and padded mailers | Visit website |
| 7 | ZoyuePack | Shenzhen, Guangdong | Decorative and branded ecommerce mailers | Visit website |
| 8 | Guangzhou Tiantian Plastic Products | Guangdong | OEM poly mailers and plastic bags | Visit website |
| 9 | Qingdao Zhoushi Plastic Packaging | Qingdao, Shandong | PE and alternative-material mailers | Visit website |
| 10 | Mailerbagfactory | China | Poly, bubble, paper, and frosted mailers | Visit website |
1. WH Packing
WH Packing presents itself as a China-based custom poly mailer manufacturer serving express delivery and ecommerce applications.Its published range includes printed, handle, plain white, colored, recycled, and transparent poly mailers. The company website also describes several film-blowing, printing, and bag-making production lines.This makes WH Packing a potential candidate for buyers that need large production quantities or several conventional mailer formats from one source.Potential fit: Large-volume orders, courier packaging, logistics companies, and packaging distributors.Confirm before ordering: Production availability, printing limitations, current certification documents, MOQ, and the inspection standard for mass production.
2. RHK Packaging
RHK Packaging is a Dongguan-based manufacturer focused on poly mailers and related shipping bags for ecommerce, logistics, retail, and industrial customers.Unlike a general packaging company with hundreds of unrelated products, RHK concentrates its offering on flexible mailing and shipping solutions. This makes it easier for buyers to compare different poly mailer structures within the same sourcing project.Its product range includes:
- Standard virgin PE poly mailers
- Colored poly mailers
- Custom printed poly mailers
- Perforated poly mailers
- Roll-fed poly mailers
- Bottom-gusset poly mailers
- Die-cut handle mailers
- Double-seal return mailers
- Recyclable mailing bags
- Biodegradable mailers
- Compostable mailers
- Bubble mailers
Why RHK Packaging Stands Out
Focused Poly Mailer Product Range
RHK supplies standard shipping bags as well as specialized structures such as perforated, roll-fed, gusseted, returnable, and padded mailers.This allows buyers to compare several possible structures without moving the project between unrelated suppliers.
Specification-Based Customization
Buyers can discuss the complete bag specification, including:
- Finished size
- Film thickness
- Material structure
- Film color and finish
- Printing colors
- Print coverage
- Adhesive closure
- Return strip
- Perforation
- Order quantity
- Carton packing
This approach is useful for brands that need more than simply placing a logo on a standard stock bag.
Artwork and Sample Support
A custom poly mailer project requires the material, size, printing method, and closure structure to be confirmed before the final artwork is approved.RHK supports specification confirmation, artwork review, sample development, production, and quality control as parts of the same sourcing process.
Options for Different Packaging Objectives
Buyers can compare conventional PE, recyclable mailing bags, biodegradable mailers, compostable mailers, and bubble-lined mailers.These terms describe different material properties. Any environmental claim should be supported by suitable material documents, test standards, certification scope, and disposal information for the destination market.
Suitable for Ecommerce and B2B Buyers
RHK is particularly relevant for buyers that want to discuss the real product, packed dimensions, branding requirements, order quantity, and delivery destination before selecting a mailer.Potential customers include:
- Ecommerce brands
- Apparel businesses
- Packaging distributors
- Fulfillment operations
- Logistics companies
- Retail packaging buyers
- Businesses requiring custom bag specifications
Explore the company’s poly mailer range or submit your required size, thickness, material, artwork, quantity, and delivery destination for a tailored quotation.
Confirm before ordering: Confirm the MOQ and production time for the exact size, material, printing method, and quantity. Stock products and fully customized bags may have different requirements.
RHK Packaging offers multiple poly mailer structures for different products, packing processes, and branding requirements.
3. Zhongzhou Pack Group
Zhongzhou Pack Group is a Guangdong packaging manufacturer whose website lists mailing bags, poly bubble mailers, handle bags, zipper bags, stretch film, plastic bags, and paper bags.The company also presents OEM and ODM services covering size, printing, and logo customization.Its broad product range may suit buyers that want to purchase poly mailers and complementary packaging from the same supplier.Potential fit: Multi-product packaging programs, bubble mailers, plastic and paper bags, and packaging distributors.Confirm before ordering: Which facility or production department will manufacture the order and whether the provided certificates cover the selected material.
4. Hangzhou Chunmei Packaging
Hangzhou Chunmei Packaging focuses on courier and mailing bags.Its website lists colored mailers, custom printed mailing bags, recycled plastic mailers, bubble envelopes, and other shipping packaging.The company describes a long operating history and multiple production lines, making it a supplier to consider for conventional courier bags and large-volume orders.Potential fit: Express packaging, high-volume plain mailers, printed bags, and recycled-content mailers.
Confirm before ordering: Available production capacity, sample approval procedures, film composition, printing tolerances, and shipment inspection requirements.
5. Tianjin Unipack
Tianjin Unipack manufactures poly mailers alongside bubble mailers, roll stock, and other flexible packaging.Its website describes OEM and ODM production, printing, lamination, bag making, and laboratory equipment.This broader flexible-packaging background may be useful for buyers that need poly mailers together with laminated bags or roll-film products.Potential fit: Flexible-packaging distributors, printed mailers, laminated packaging, and projects requiring several packaging formats.Confirm before ordering: Whether the proposed tests apply to the selected mailer construction, the scope of current certifications, production time, and inspection requirements.
6. Guangdong Chuangxin Packing Group
Guangdong Chuangxin Packing Group presents poly mailers, kraft bubble mailers, poly bubble mailers, metallic bubble mailers, zipper bags, air-column packaging, and related plastic bags.The combination of padded and unpadded mailers makes the company relevant to buyers shipping products with different protection requirements.Potential fit: Businesses comparing standard poly mailers, bubble mailers, metallic mailers, and other protective shipping formats.
Confirm before ordering: Outer-film thickness, bubble-layer structure, usable internal size, printing method, closure strength, and sample performance with the actual product.
7. ZoyuePack
ZoyuePack offers printed poly mailers, bubble mailers, resealable pouches, shopping bags, and a large selection of decorative mailer designs.Its website also presents custom colors, sizes, logos, and artwork support.The visible design range makes ZoyuePack worth reviewing when visual variety and branded ecommerce presentation are important purchasing factors.Potential fit: Online boutiques, seasonal packaging, colorful printed mailers, and brands comparing several design directions.
Confirm before ordering: Artwork ownership, Pantone color tolerances, print consistency between batches, stock availability, and whether a displayed design is ready-made or custom produced.
8. Guangzhou Tiantian Plastic Products
Guangzhou Tiantian Plastic Products lists poly mailer bags, handle courier bags, zipper packaging bags, die-cut shopping bags, and bubble mailers.Its website describes an OEM quotation process based on the buyer’s material, dimensions, thickness, color, artwork, quantity, and packing requirements.This process may suit buyers that already have a relatively complete product specification.Potential fit: OEM projects, apparel packaging, handle mailers, zipper bags, and customized plastic packaging.
Confirm before ordering: The legal contracting entity, production address, material documents, sample costs, printing setup charges, and delivery terms.
9. Qingdao Zhoushi Plastic Packaging
Qingdao Zhoushi Plastic Packaging lists PE mailing bags, biodegradable mailing bags, and biodegradable bubble bags.Its product navigation separates single-layer and multilayer plastic or biodegradable structures.The company may be worth reviewing when a buyer wants to compare conventional PE mailers with alternative material constructions.Potential fit: PE mailing bags, multilayer structures, alternative-material projects, and buyers requesting technical documentation.
Confirm before ordering: Exact formulation, material composition, test standard, test conditions, certificate holder, certificate validity, and the markets in which a claim may be used.
10. Mailerbagfactory
Mailerbagfactory presents custom poly mailers, bubble mailers, paper mailers, frosted zipper bags, and honeycomb paper mailers.Its website describes customization services for brands and products such as clothing and books.The company’s product mix provides a starting point for buyers comparing several flexible shipping materials.Potential fit: Small and medium ecommerce brands, apparel packaging, bubble mailers, paper mailers, and mixed mailer sourcing.
Confirm before ordering: Current factory location, legal contracting entity, MOQ by product, sample schedule, material claims, and mass-production lead time.
How to Compare Poly Mailer Manufacturers
Size, material, thickness, printing, closure, samples, and quality requirements should be compared using the same specification.A manufacturer list can narrow your search, but it cannot replace product evaluation. Compare suppliers using the complete specification and the intended shipping application.
1. Confirm the Finished and Usable Size
A poly mailer is normally measured while flat. However, the product’s thickness consumes part of the available width and length.
Send the supplier your product dimensions and packed thickness. Request a physical sample before approving the final bag size.
2. Specify the Film Structure and Thickness
Do not request only a “strong poly mailer.” State the required material, thickness, number of layers, opacity, finish, and performance requirements.Ask how the thickness is measured and what production tolerance applies.
3. Define the Printing Requirements
Provide:
- Vector artwork
- Pantone color references
- Number of printing colors
- Printing area
- One-side or two-side printing
- Surface finish
- Required print position
Request a digital artwork proof. If color accuracy is important, agree on a printed sample or another color-control method.
4. Match the Closure to the Packing Process
Confirm the adhesive-strip width, permanent or resealable closure, return strip, perforation, flap length, and expected application conditions.Test the closure with the real packed product.
5. Verify Environmental Claims
Recycled content, recyclability, biodegradability, and compostability describe different material properties.When comparing recyclable mailing bags, biodegradable mailers, and compostable mailers, ask for:
- Material composition
- Recycled-content percentage
- Applicable test standard
- Certificate or laboratory report
- Certificate holder
- Validity period
- Disposal conditions
- Intended destination market
6. Compare Representative Samples
Use samples to check:
- Finished and usable dimensions
- Film thickness
- Side seals
- Film consistency
- Opacity
- Printing registration
- Color
- Odor
- Adhesive performance
- Label adhesion
- Perforation
- Puncture risk
Keep an approved sample as the reference for mass-production inspection.
7. Compare the Complete Commercial Offer
The lowest unit price may exclude printing plates, sample charges, cartons, freight, duties, or inspection.Compare quotations using the same specifications, order quantity, carton packing, Incoterm, destination, payment terms, and inspection requirements.
Information to Include in a Poly Mailer RFQ
Provide the following information to receive a more accurate quotation:
- Mailer type and intended product
- Finished width, length, flap, and gusset
- Product dimensions and packed weight
- Film material and structure
- Required film thickness
- Bag color and surface finish
- Printing colors and coverage
- One-side or two-side printing
- Vector artwork
- Adhesive and return-strip requirements
- Perforation or handle requirements
- Order quantity and expected repeat volume
- Individual and carton packing
- Testing or certification requirements
- Delivery country and postal code
- Target delivery date
- Preferred Incoterm
Frequently Asked Questions
Who is the best poly mailer manufacturer in China?
There is no single manufacturer that is best for every project. The right choice depends on bag structure, quantity, printing requirements, material documents, quality control, and delivery planning.RHK Packaging is a strong candidate for buyers that want a focused poly mailer range and specification-based custom support. Buyers with very large courier programs may also compare suppliers that emphasize high-volume production.
What is the typical MOQ for custom poly mailers?
MOQ varies by size, film, printing method, number of colors, and production process. Stock bags, digitally printed bags, and custom gravure-printed bags may have different minimums.Request the MOQ for your exact specification rather than relying on a general number.
What should I check in a custom poly mailer sample?
Check the usable size, thickness, seals, opacity, print position, color, artwork clarity, adhesive closure, perforation, label adhesion, odor, and puncture resistance.Test the sample with the real product.
Can Chinese manufacturers produce recycled poly mailers?
Many Chinese manufacturers advertise recycled-content mailers. When evaluating recyclable mailing bags, buyers should confirm the percentage and source of the recycled material, supporting documents, film structure, performance requirements, and local recycling conditions.
How can I compare quotations fairly?
Send every shortlisted manufacturer the same RFQ. Compare the same finished size, thickness, material, printing, quantity, carton packing, delivery destination, Incoterm, and quality requirements.
Looking for a Custom Poly Mailer Manufacturer in China?
Explore our poly mailer collection or send us your required size, thickness, material, artwork, quantity, and delivery destination for a tailored quotation.