Views: 261 Author: Miluo Smart Home Publish Time: 2026-08-17 Origin: Site
Content Menu
● Top Manufacturers at a Glance
>> 1. Jiaxing Miluo Smart Home Co., Ltd.
>> 4. Foshan Ressani Bathroom Co., Ltd.
>> 5. MUNK Building Materials Co., Ltd.
>> 7. Guangdong Solid New Material Co., Ltd.
>> 8. Foshan Wisdom Sanitary Ware Co., Ltd.
>> 10. KJ Bath
● What Buyers Should Know About Solid Surface Bathtubs
● The Industry's Less-Discussed Risk
>> Before requesting quotations
>> During supplier verification
● FAQ
>> 1. How can I verify whether a supplier's ISO 9001 certificate has expired?
>> 2. Is CE certification enough to sell solid surface bathtubs in Europe?
>> 3. What is a realistic MOQ for a customized solid surface bathtub?
>> 4. How do I know whether the tub is solid surface or only gel-coated resin stone?
>> 5. Which pre-shipment defects cause the highest after-sales costs?
China remains a practical sourcing base for solid surface bathtubs because it combines material-processing capabilities, mould development, sanitary ware production, export infrastructure, and a wide supplier base. For buyers building a private-label bathroom collection or supplying residential and hospitality projects, the key issue is not simply finding a low quotation—it is finding a factory that can consistently reproduce the approved material, dimensions, finish, drain position, packaging, and documentation over repeat orders.
This guide identifies 10 manufacturers with visible solid-surface or artificial-stone bathware capabilities. It is designed for overseas brand owners, distributors, wholesalers, project contractors, and manufacturers seeking OEM or ODM cooperation.
A supplier's website, showroom, or quotation alone cannot demonstrate production reliability. The companies below were screened using publicly available information and practical sourcing criteria; buyers should still conduct their own document review, sample approval, video audit, or third-party factory inspection before placing an order.
The selection considered:
- Product specialization: Whether solid surface, resin stone, artificial stone, or mineral-composite bathtubs are a stated production focus rather than a minor catalogue category.
- Manufacturing transparency: Disclosed factory location, production area, capacity, production lines, material capability, or quality-control practices.
- Customization capability: Availability of OEM, ODM, mould development, dimensions, colors, finishes, branding, and project-based product development.
- Quality documentation: Publicly stated ISO 9001, CE, cUPC, SGS, CSA, REACH, or related test documentation. Certification applicability must be checked model by model.
- Export readiness: Evidence of international-market activity, multilingual communication, packaging knowledge, and proximity to ports or established export handling.
- Long-term cooperation fit: Ability to support stable repeat production, not just an initial sample order.
China's key manufacturing clusters include Foshan in Guangdong, which has a mature bathroom, ceramic, hardware, and building-material supply chain; Shenzhen/Huizhou, where engineered-stone production is concentrated; and Zhejiang, which benefits from strong export logistics and access to Shanghai and Ningbo ports. Public trade data also shows continued export activity in sanitary-related categories, though product classification and material categories vary by customs code.
The figures below are publicly disclosed where available. "Not publicly disclosed" does not mean a supplier lacks capacity or certification; it means buyers should request current written evidence before comparison.
| Manufacturer | Location | Main Focus | Publicly Disclosed Capacity | MOQ Approach | Publicly Stated Documentation |
|---|---|---|---|---|---|
| Jiaxing Miluo Smart Home Co., Ltd. | Jiaxing, Zhejiang | Solid surface, resin stone bathtubs, basins, vanities | Not publicly disclosed | Quote-based; suitable for customized orders | Request current model-specific documents |
| KingKonree / KKR | Shenzhen / Huizhou, Guangdong | Solid surface sheets, tubs, basins, countertops | Approx. 6,000 solid surface tubs/year reported by factory listing | Quote-based; mould and project dependent | ISO 9001, CE, cUPC, SGS, CSA stated |
| Bella Stone Co., Ltd. | Foshan, Guangdong | Artificial stone and solid surface bathware | 10,000 tubs/year; 30,000 basins/year | Quote-based | ISO 9001 and CE stated |
| Foshan Ressani Bathroom Co., Ltd. | Foshan, Guangdong | Basins, bathtubs, customized project sanitary ware | 1,500 tubs/month stated | Quote-based | ISO 9001 stated |
| MUNK Building Materials Co., Ltd. | Foshan / Kaiping, Guangdong | Hotel-oriented complete bathroom supply | Two factories totaling 20,000 m² | Project-based | Request current documents |
| Eshine Solid Surface | China | Solid surface sheets, basins, countertops, tubs | Not publicly disclosed | Quote-based | Request current documents |
| Guangdong Solid New Material Co., Ltd. | Foshan, Guangdong | Solid surface materials and OEM engineered stone | 20,000 m² workshop stated | Material/project dependent | CE and SGS stated |
| Foshan Wisdom Sanitary Ware Co., Ltd. | Foshan, Guangdong | Bathtubs, basins, broader sanitary ware | Factory over 100,000 m² stated | Quote-based | ISO 9001, CE, cUPC and RoHS stated |
| Maydon Bath | Foshan, Guangdong / Vietnam | Premium sanitary ware, OEM/ODM | 100,000+ installations claimed | Project and order dependent | ISO 9001 and CE stated |
| KJ Bath | Foshan, Guangdong | Freestanding tubs, solid surface, acrylic and project supply | Not publicly disclosed | Quote-based | ISO 9001, CE, cUPC documentation stated as scope-dependent |
Important: MOQ is often determined by the material color, mould ownership, packaging specification, hardware configuration, and whether the buyer chooses an existing model or a new design. Never treat a supplier's general MOQ as a final commitment without a signed product specification sheet.
Founded: 1999
Location: Pinghu, Jiaxing, Zhejiang, China
Core products: Solid surface bathtubs, resin stone bathtubs, wash basins, bathroom vanities, shower bases, mirrors, and customized bathroom solutions
Primary markets: North America, the United Kingdom, Canada, Australia, the Middle East, and other overseas markets
OEM/ODM fit: Small and mid-sized brands, distributors, private-label collections, and customized bathroom projects
Jiaxing Miluo Smart Home Co., Ltd. is a useful option for buyers that need more than a single bathtub SKU. The company states that it has focused on sanitary ware research, production, and export since 1999, while the Miluo brand was launched in 2005 for customized contemporary bathroom solutions. Its range covers solid surface and resin-stone tubs as well as related basins, vanities, shower bases, and mirrors.
For emerging bathroom brands and regional distributors, Miluo's practical advantage is flexibility. Instead of positioning the cooperation only around high-volume standardized models, the company emphasizes communication from concept development through production and post-delivery feedback. This is relevant when a buyer needs adjustments to tub length, overflow configuration, color, matte or gloss finish, drain location, packaging artwork, or coordinated basin-and-vanity collections.
The Jiaxing location also gives logistical advantages for export shipments, with stated proximity to Shanghai Port and Ningbo Port. Buyers should request a current factory profile, product-specific material specification, inspection plan, and recent certification copies before confirming a market launch.
Established: 2000
Location: Shenzhen/Huizhou, Guangdong
Core products: Acrylic solid surface sheets, solid surface bathtubs, basins, countertops, and customized engineered-stone products
Primary markets: International export customers, including North American and European project markets
OEM/ODM fit: Buyers requiring material engineering, broad design choice, certification support, or customized mould work
KingKonree is one of the more visible Chinese engineered-stone suppliers because its business covers both solid surface raw materials and finished sanitary ware. The company states that it has operated in exporting since 2000 and offers more than 80 bathtub designs, in addition to customized options.
Its published materials cite ISO 9001, CE, cUPC, SGS, CSA, REACH, Prop 65, and other documentation across products and projects. Buyers should not assume every certificate applies to every bathtub model or destination market; request the certificate number, certificate holder, product scope, test standard, issue date, and validity status for the actual SKU.
A factory listing reports approximately 6,000 solid surface bathtubs annually, three workshop areas totaling about 19,000 m², and more than 10 production lines. This makes KKR a potential fit for established distributors, hotel projects, and brands that require engineered-stone material options alongside bathware.
Established: 2003
Location: Foshan, Guangdong
Core products: Artificial stone bathtubs, solid surface bathtubs, basins, and freestanding bathware
Primary markets: International private-label and bathware customers
OEM/ODM fit: Brands requiring established artificial-stone bathware capacity and design-led freestanding products
Bella Stone is a Foshan-based manufacturer focused on artificial stone and solid surface bathroom products. It reports a 10,000 m² production facility, approximately 100 skilled workers and technicians, annual output of 10,000 bathtubs and 30,000 basins, plus ISO 9001 and CE certification.
For buyers, the main value lies in its specialized bathware orientation rather than a broad all-category sanitary ware catalogue. Foshan also offers access to a dense supplier ecosystem for bathroom furniture, ceramics, faucets, mirrors, packaging, and export services, which can be useful for combined-bathroom procurement.
Before onboarding, confirm whether the quoted bathtub is fully cast solid surface, gel-coat resin stone, or another mineral-composite construction. These materials can look similar in photos but have different repairability, wall structure, color consistency, surface behavior, and cost.
Location: Foshan, Guangdong
Core products: Bathtubs, wash basins, pedestal basins, customized artificial-stone bathroom products
Primary markets: Japan, Italy, Germany, the Netherlands, the United States, and other project markets stated by the supplier
OEM/ODM fit: Design-led projects needing custom size, color, and shape
Foshan Ressani positions itself around customized basin and bathtub manufacturing. Its publicly listed information states ISO 9001 certification, four production lines, five to ten R&D staff, and capacity of 1,500 bathtubs plus 2,000 wash basins. The supplier also says it can customize size, color, and shape for project requirements.
This profile may suit importers serving boutique hotels, apartment developments, and premium residential customers where a standard catalogue design is insufficient. The buyer should convert all customization requests into an approved technical drawing covering external dimensions, internal soaking depth, wall thickness, drain dimensions, overflow location, weight, tolerance, finish level, and inspection points.
Because stone-resin tubs are heavy and volumetrically inefficient compared with acrylic tubs, ask Ressani or any similar supplier for a container-loading plan before locking the design. A visually attractive oversized model can materially increase freight cost per usable retail unit.
Established: 2008
Location: Foshan and Kaiping, Guangdong
Core products: Solid surface bathtubs, basins, toilets, brass faucets, fittings, accessories, and complete bathroom supply
Primary markets: Hotel and high-end bathroom projects
OEM/ODM fit: Hospitality buyers seeking multi-category sourcing
MUNK Building Materials was established in 2008 and states that it focuses on high-end sanitary ware for hotels worldwide. It reports two wholly owned factories—Kaiping MUNK Sanitary Ware and Yilan Building Materials—with total production space of 20,000 m². Its listed categories include solid surface bathtubs and basins, alongside faucets, toilets, accessories, and shower fittings.
MUNK may be especially relevant where a procurement team wants to reduce supplier count by sourcing a coordinated bathroom package. However, multi-category sourcing should not replace product-level validation. A capable faucet line does not automatically prove that the same supplier has the strongest material control for solid surface tubs.
Request separate quality-control documents for the bathtub line, including incoming resin and filler records, mold-release process, curing controls, sanding stages, surface-finish inspection, drain fitting checks, and final packaging standards.
Established: Solid surface manufacturing activity stated since 2010
Location: China
Core products: Acrylic solid surface sheets, countertops, tables, wash basins, and bathtubs
Primary markets: Domestic and export-oriented engineered-stone buyers
OEM/ODM fit: Buyers that need material customization combined with finished-product development
Eshine describes itself as a solid surface manufacturer that has participated in the industry since 2010. Its product scope includes acrylic solid surface sheets, countertops, tables, wash basins, and bathtubs.
This kind of vertically related material-and-product supplier can be useful if the buyer needs matching bathtub, basin, counter, and vanity-top colors. Material consistency matters when a bathroom collection uses the same white tone, pigment, veining, or terrazzo-style pattern across multiple product categories.
The key verification point is whether the bathtub body uses the same grade of material shown in the sample sheet. Require a signed bill of materials and ask the factory to label the approved material sample with the project name, revision number, color code, and approval date.
Industry experience: More than 20 years stated
Location: Foshan, Guangdong
Core products: Solid surface materials and engineered-stone OEM products
Primary markets: North America and Europe stated
OEM/ODM fit: Buyers needing material development, color matching, or engineered-stone supply-chain support
Guangdong Solid New Material reports more than 20 years of solid surface manufacturing experience, a 20,000 m² facility, nearly 150 employees, and CE and SGS documentation. It also states experience supplying or cooperating with brands including DuPont, Samsung, and LG, as well as exports to North America and Europe.
While its public profile is more material-centered than bathtub-centered, this can be strategically relevant for brands building custom engineered-stone collections. A material-focused supplier may offer stronger control over pigments, fillers, sheet production, and color development than a trading company sourcing materials from multiple factories.
Buyers should clarify whether the supplier itself casts the finished bathtubs, partners with a sanitary-ware producer, or only supplies the solid-surface material. That distinction affects accountability for leak tests, drainage fitting, structural integrity, surface repair, and packaging claims.
Location: Foshan, Guangdong
Core products: Bathtubs, basins, and broader sanitary ware
Publicly stated facility size: More than 100,000 m²
OEM/ODM fit: Buyers that need larger-scale sanitary ware sourcing and market-specific documentation
Foshan Wisdom Sanitary Ware states that it has a manufacturing plant exceeding 100,000 m² in Nanhai, Foshan. Its public listing cites ISO 9001, IECQ-HSPM QC 08000, RoHS, TUV/CE, cUPC, and cETL-related approvals for products or operations.
This supplier may be appropriate for procurement teams that prioritize production scale and wider compliance documentation. Still, buyers should distinguish between a factory management-system certificate and a product approval. ISO 9001 relates to a quality management system; it does not, by itself, prove that a specific bathtub complies with plumbing, electrical, chemical, or local building-code requirements.
For North America, ask whether the exact tub configuration—including drain kit and overflow components—is within the scope of any claimed cUPC or IAPMO approval. For Europe, confirm whether CE marking is legally applicable to the specific product and which harmonized standard or declaration supports it.
Established: 2006
Location: Foshan, China, with a production base also stated in Vietnam
Core products: Premium sanitary ware and OEM/ODM bathroom products
Primary markets: More than 50 countries stated
OEM/ODM fit: Brands seeking dual-origin planning or broad export coverage
Maydon Bath states that it was established in 2006 and operates with production bases in Foshan, China and Tan Uyen, Vietnam. It reports ISO 9001 and CE certification, service to more than 50 countries, and OEM/ODM projects for Amazon and Kohler-related suppliers since 2012.
A dual-production-base model can matter to buyers evaluating sourcing resilience, tariff exposure, or country-of-origin requirements. However, product origin must be verified by actual manufacturing records, not by an office address or general company statement.
Ask for the exact production site for the proposed bathtub model, the origin declaration process, bill of materials, final assembly location, and whether the same mould, raw material formula, and inspection standards apply across sites.
Established: 1999 stated
Location: Foshan, Guangdong
Core products: Freestanding, alcove, back-to-wall, clawfoot, whirlpool, acrylic, and solid surface bathtubs
Primary markets: More than 190 countries stated
OEM/ODM fit: Buyers seeking a broad tub portfolio and private-label production support
KJ Bath states that it has manufactured bathtubs in Foshan since 1999, with products spanning reinforced acrylic and solid surface bath categories. It also describes OEM/ODM support from sample development through container loading and references market-dependent documentation including ISO 9001, CE, cUPC, and WaterMark.
The supplier may fit distributors that require multiple bathtub constructions under one procurement program. This can help with catalog breadth, but it also increases the need for product-by-product documentation because acrylic, solid surface, resin stone, and whirlpool tubs have different structural, installation, packaging, and compliance requirements.
For solid surface projects, request a separate specification from the acrylic model range. Do not accept a generic catalogue page as confirmation of solid surface formulation, tub weight, repairability, wall construction, or product approval.
"Solid surface bathtub" is often used loosely in sourcing conversations. It may describe several material systems, including acrylic solid surface, mineral-filled resin composite, gel-coat stone resin, and artificial stone. These are not interchangeable.
A strong purchasing specification should define:
- Resin system: Acrylic-based, polyester-based, modified resin, or another declared formulation.
- Mineral filler: Type, proportion range, particle consistency, and whether it affects color and repairability.
- Construction: Fully cast body, layered shell, gel-coated surface, reinforcement method, and wall thickness.
- Surface finish: Matte, satin, gloss, anti-yellowing expectation, color code, and permissible visual defects.
- Performance tests: Water retention, drainage, overflow operation, load stability, scratch resistance, staining behavior, thermal cycling, and impact resistance.
- Dimensional tolerances: Length, width, height, soaking depth, drain centerline, overflow position, and floor contact points.
- Packaging standard: Edge protection, protective film, pallet or crate requirements, drop-test approach, and carton marks.
Acrylic solid surface products are typically valued for a non-porous, repairable surface and design flexibility. KKR, for example, states that its solid surface bathtubs use acrylic solid surface or gel-coat stone resin depending on the product, which illustrates why buyers must confirm the actual material for the selected SKU rather than relying on category wording.
The most expensive problem is often sample-to-mass-production material substitution.
A supplier may provide a premium sample with higher mineral content, better pigment dispersion, careful hand-finishing, and a thicker or more stable structure. During production, a factory may change filler ratio, resin grade, gel-coat thickness, or curing time to reduce cost or accelerate output. The tub can still look acceptable at loading, but later develop yellowing, hairline cracks, dull patches, uneven color, odor, or surface porosity.
Avoid this by using a "golden sample" system:
1. Approve one physical master sample with a project code, material code, finish standard, and dated signatures.
2. Take a small cut-off or separate material coupon from that same production batch.
3. Include the material formula range and minimum performance requirements in the purchase contract.
4. Require first-article approval before full production.
5. Conduct pre-shipment inspection against the signed sample—not against a photo or general catalogue image.
6. Keep one retained sample at the buyer's office and one at the factory.
This process is more useful than simply requesting "high quality," because it creates a physical and contractual reference for disputes.
Prepare a sourcing brief that includes:
- Target market and applicable standards.
- Product type: freestanding, back-to-wall, alcove, corner, or project-specific.
- Target dimensions, soaking depth, drain position, overflow requirement, and maximum retail weight.
- Material preference and required finish.
- Forecast order quantity for the first order and the following 12 months.
- Packaging and private-label requirements.
- Required shipping term, destination port, and planned launch date.
A detailed brief reduces misleading price comparisons. A low quotation may exclude drain kits, overflow components, packaging upgrades, custom colors, mould charges, testing, export crating, or replacement-part support.
Use the following checklist:
- Confirm the legal company name matches the bank account, business license, factory address, invoices, and export documents.
- Request a live video walk-through of material storage, mould area, casting line, sanding/polishing section, quality-control station, packing line, and finished-goods warehouse.
- Check whether the factory has actual molds and production equipment or only a sample room.
- Ask for three recent export references by region, subject to client confidentiality.
- Request current certificates as PDFs and verify the issuing body, product scope, company name, validity period, and factory address.
- Inspect a sample for drain fit, overflow performance, stability, underside finish, visible seams, surface gloss consistency, and packaging protection.
- Include an agreed AQL or inspection standard in the purchase contract.
- Require photo or video approval for container loading, especially for heavy stone-resin models.
For an existing model, a buyer should first approve a production-representative sample—not a hand-finished showroom piece. For a new ODM design, expect a staged process:
1. Technical drawing and 3D confirmation.
2. Material and finish sample approval.
3. Mould quotation and ownership terms.
4. First prototype review.
5. Dimensional and functional revision.
6. Pilot production sample approval.
7. Mass-production release.
Clarify mould ownership in writing. If the buyer funds the mould, define whether the tool is exclusive, whether the factory may use it for other customers, where it is stored, what maintenance is included, and how it can be transferred if cooperation ends.
Solid surface bathtubs are often heavy and can consume more container volume than expected. A buyer should calculate both:
- Weight utilization: Whether the container reaches a weight limit before it reaches volume capacity.
- Cube utilization: Whether large cartons leave unusable empty space around them.
Ask suppliers for carton dimensions, gross weight, units per 20GP, 40GP, and 40HQ, pallet or crate options, and a container-loading drawing. For fragile premium models, lower loading density may be preferable if it materially reduces damage claims.
The right solid surface bathtub manufacturer depends on your business model. Large project buyers may prioritize documented capacity and multi-category supply. Established brands may prioritize design protection, material consistency, and certification support. Smaller and growing brands often benefit most from a factory that can communicate quickly, adapt specifications, and support OEM development without forcing them into a rigid high-volume program.
Jiaxing Miluo Smart Home Co., Ltd. is worth shortlisting for buyers seeking a responsive Zhejiang-based manufacturer with solid surface and resin-stone bathware experience, complementary bathroom product categories, customized solution capability, and convenient access to Shanghai and Ningbo export ports. Its stated focus on ongoing client communication and custom project development makes it particularly relevant to mid-sized brands and distributors developing differentiated bathroom collections.
Before selecting any supplier, request a current factory audit package, model-specific material information, certification evidence, physical samples, container-loading data, and a signed quality agreement. The manufacturer that provides the clearest evidence—and can repeat the approved sample at scale—is usually the better long-term partner.
Request the full certificate, not a cropped image. Check the certificate holder's legal name, registered address, factory address, certificate number, issuing certification body, scope, issue date, and expiry date. Then use the issuing body's online verification channel or contact it directly. Also confirm that the scope includes relevant manufacturing activities, not only trading or office operations.
Not necessarily. CE marking applies only when a product falls under applicable EU legislation requiring it. A supplier's general CE claim does not automatically cover every bathtub configuration. Ask the supplier which regulation, declaration, standard, and product model are covered. You should also check drainage, building, chemical, and local installation requirements in the target country.
There is no universal number. Existing white models may allow relatively lower quantities, while custom colors, new shapes, special hardware, branded packaging, or proprietary moulds usually require higher commitments. Ask suppliers to quote three scenarios: existing model with standard packaging, existing model with private-label packaging, and new ODM model with a dedicated mould.
Request a cross-section material sample, technical data sheet, declared material system, density, wall-thickness range, repair instructions, and resin/filler information. Inspect non-cosmetic areas such as the drain opening, overflow cutout, underside, and sample offcut. A material that looks uniform on the surface may have a different internal structure.
For this category, prioritize cracking, uneven or unstable bases, drain leakage, incorrect overflow positioning, inconsistent color, surface pinholes, dull sanding marks, warped rims, poor packaging, and missing hardware. A tub that looks good in a factory photo can still fail during installation if its floor contact points are uneven or its drain geometry does not match the drawing.
- [Jiaxing Miluo Smart Home Co., Ltd. company profile]
- [KingKonree company and certification information]
- [Bella Stone company profile]
- [China sanitary ware export data overview]
