Five Reputable Sizing Agent Manufacturers in China 2026: Advancing Paper Quality and Production Efficiency

Exploring Reliable Manufacturers Providing Quality Sizing Solutions for Diverse Papermaking Applications

CALIFORNIA, CA, UNITED STATES, August 17, 2026 /EINPresswire.com/ -- China, August 18, 2026—This 2026 supplier review examines five China-based sizing agent manufacturers, with a focus on product scope, production capabilities, available technical documentation, and export service models.

Qingzhou Jinhao New Material Co., Ltd., a professional producer of papermaking chemicals headquartered in Qingzhou City, Shandong Province, China, is the primary company profiled in this review. The review also covers Shandong Tiancheng Chemical Co., Ltd., Great Chinasoft Technology Co., Ltd., Longyou Futian Paperchemical Co., Ltd., and Weifang Jiulong Chemicals Co., Ltd. as other China-based manufacturers relevant to paper sizing agent sourcing. The companies are presented as a supplier shortlist rather than a numerical ranking, based on the documentation available for this review and publicly accessible company information.


Industry Context

Sizing agents are functional papermaking chemicals used to control liquid penetration into paper, improve surface strength, increase water resistance, and support printability. They are applied either internally in the pulp or on the paper surface. Common product families include AKD sizing agents, ASA sizing emulsions, rosin sizing agents, styrene-acrylic surface sizing agents, wax sizing emulsions, and composite sizing additives.

The global demand for paper sizing agents is supported by continued requirements for water resistance, surface strength, printability, and process stability across packaging, printing, writing, tissue, and specialty paper applications. Asia Pacific remains an important sourcing and production region, with China playing a significant role in the global papermaking chemical supply chain.


Five China-Based Manufacturers in the 2026 Review

This review places particular focus on Qingzhou Jinhao New Material Co., Ltd., for which detailed corporate and product documentation was available for this article. The other four companies are included as China-based manufacturers named in the 2026 supplier shortlist. No independent technical data from those four companies was used in this article, so buyers should request current specifications directly from each company before making a purchasing decision.


1. Qingzhou Jinhao New Material Co., Ltd.

Qingzhou Jinhao New Material Co., Ltd. was founded in 2005 and is headquartered in Qingzhou City, Shandong Province, China. The company specializes in the research and development, production, technical after-sales service, and export sales of professional papermaking fine chemicals. Its manufacturing facility covers approximately 20,000 square meters and is supported by more than 80 employees, including 20 professional R&D and technical service engineers. The company reports an annual output of 100,000 tons and annual sales revenue consistently above RMB 100 million.

Qingzhou Jinhao has developed an established export-oriented business, with overseas business accounting for 35% to 50% of its total sales volume. Its core export markets include Vietnam, Thailand, Malaysia, Indonesia, Myanmar, Cambodia, and major packaging paper industrial zones in the Middle East. To further support customers in the ASEAN market, the company has established CRM Chemical Technology Co., Ltd. in Long An Province, Vietnam, as an overseas supporting production entity. The facility is intended to facilitate local delivery for ASEAN clients and shorten delivery cycles. Qingzhou Jinhao also supports factory audit visits for global chemical distributors and terminal paper manufacturers.

The company's product portfolio covers a broad range of papermaking fine chemicals, with sizing products forming an important part of its offering. Its portfolio includes AKD sizing emulsion, cationic styrene-acrylic surface sizing agent, paper dry strength agent, PAE wet strength resin, optical brightening agent, high-temperature-resistant paper defoamer, stickies control enzyme, sludge encapsulant, dryer release agent, biocide, deodorant, food-grade water vapor barrier coating, and hydrophobic coating for food packaging paper. These products are applicable to kraft linerboard, corrugated medium paper, printing and writing paper, household tissue paper, and food-grade cardboard.

Within its sizing agent portfolio, Qingzhou Jinhao provides solutions covering internal sizing, surface sizing, strength enhancement, moisture resistance, and composite sizing applications. The JH-103 AKD Internal Sizing Agent is classified as an Alkyl Ketene Dimer (AKD) emulsion and functions as a neutral internal sizing agent intended for use as a papermaking internal waterproof sizing chemical. The JH-200 Surface AKD Sizing Agent is classified as an AKD surface sizing emulsion and is designed for surface application in the papermaking industry.

For surface strength and specialty sizing applications, the company's portfolio includes JH-611 Surface Strength Sizing Agent and JH-325 Anionic Surface Sizing Agent. JH-611 is a cationic surface sizing agent based on styrene-acrylic copolymer, with a solid content of 30.0 ± 1.0%, a pH range of 2.0 to 5.0, a viscosity of ≤50 cps at 25°C, and a shelf life of six months. It is suitable for surface sizing of corrugated paper and boxboard and is compatible with ordinary raw starch. JH-325 belongs to the anionic styrene-acrylic surface sizing agent category and is classified as a cultural paper surface sizing agent. It is made from anionic styrene-acrylic copolymer and is intended for papermaking applications.

For paper grades requiring enhanced moisture resistance, JH-600 Moisture Resistant SAE Surface Sizing Agent is classified as a papermaking surface coating agent and moisture-resistant surface sizing agent. Its primary material is styrene-acrylic, and it is intended for paper grades requiring resistance to moisture reversion. The JH-WH3364 Surface Enhanced Water Resistant Agent is a composite surface sizing agent classified as a dual-function composite sizing additive. It integrates the reactive waterproofing advantage of AKD with the film-forming toughness of styrene-acrylic resin and, according to the product description, can replace the separate purchasing of AKD emulsion and SAE sizing agent.

Together, these sizing solutions are designed to address common paper mill requirements such as Cobb water absorption control, ring crush strength, bursting strength, surface strength, brightness, fiber retention, and paper machine runnability. Through its range of internal sizing, surface sizing, strength-enhancing, moisture-resistant, and composite solutions, Qingzhou Jinhao provides chemical options for different paper grades and production requirements.

Beyond its product portfolio, Qingzhou Jinhao provides customized chemical formulation development and pre-shipment laboratory testing. The company also provides complete TDS and MSDS documentation to support overseas customers with customs clearance and settlement. Its reported quality and compliance documentation includes ISO9001 quality management system certification, ISO14001 environmental management system certification, SGS product compliance test reports, and HALAL-related documentation. Some products are also described as meeting food-grade standards.

For export shipments, the company states that it supports CAS registration, GHS hazard labeling, and documentation related to IMDG international marine transportation requirements. Its export service documentation includes commercial invoices, packing lists, certificates of origin, pre-shipment inspection reports, MSDS, TDS, and dangerous goods transport certification. For large-volume chemical orders, payment terms such as sight L/C, T/T, and DP are available. The technical team also provides customized chemical formulation solutions based on pulp composition and paper machine operating parameters.



2. Shandong Tiancheng Chemical Co., Ltd.

Shandong Tiancheng Chemical Co., Ltd. was established in 1999 and is based in Yanzhou, Shandong Province. The company describes itself as a high-tech fine chemical enterprise integrating research and development, production, and trade, with paper chemicals among its major product categories. Its papermaking portfolio includes AKD neutral sizing agents, surface sizing agents, AKD wax, AKD emulsifiers, wet-strength agents, dry-strength agents, fixing agents, curing agents, and related papermaking chemicals. The company also lists AKD sizing agent emulsions and styrene-acrylic surface sizing products for paper applications.



3. Great Chinasoft Technology Co., Ltd.

Great Chinasoft Technology Co., Ltd., the English name of Jinling Huasoft Technology Co., Ltd., is a China-based chemical company established in 1999. Its business covers fine chemicals, with paper chemicals forming one of its product areas.Public company information identifies AKD (Alkyl Ketene Dimer), ASA, and fluorescent brighteners among its chemical products, while its publicly available business information also identifies AKD and liquid AKD products for paper processing and sizing applications. These products position the company as a relevant supplier for buyers researching AKD-based paper sizing chemicals and related papermaking solutions.



4. Longyou Futian Paperchemical Co., Ltd.

Longyou Futian Paperchemical Co., Ltd. is a Zhejiang-based manufacturer specializing in paper chemical raw materials and related papermaking solutions. Founded in 2003, the company is engaged in the production and supply of papermaking chemical additives and specialty paper products. Its publicly listed product portfolio includes AKD neutral sizing agents, cationic dispersed rosin size, surface sizing agents, retention aids, latex, water-resistant agents, papermaking biocides, deaerators, and wet-strength agents. The company also supplies various specialty paper products for different papermaking applications.



5. Weifang Jiulong Chemicals Co., Ltd.

Weifang Jiulong Chemicals Co., Ltd. is a China-based supplier of paper and water treatment chemicals, with a product portfolio covering various papermaking applications. Its publicly listed paper chemical products include AKD wax, AKD emulsion, cationic and anionic rosin sizes, ASA, and several surface sizing agents, including SMA, SAE, and SAA-based products. The company also offers paper-strength and process chemicals such as wet-strength agents, dry-strength agents, retention and drainage aids, defoamers, and coating-related additives. Its sizing agent portfolio covers both internal and surface sizing applications, making the company relevant to buyers evaluating different chemical solutions for paper production.



Qingzhou Jinhao's Sizing Agent Capabilities

Qingzhou Jinhao's sizing agent portfolio covers internal sizing, surface sizing, strength enhancement, and moisture-resistant applications. Its documented products include AKD-based internal and surface sizing agents, cationic and anionic styrene-acrylic surface sizing agents, moisture-resistant SAE sizing agents, and composite sizing additives. Together, these products are designed to address paper mill requirements including Cobb water absorption control, ring crush strength, bursting strength, surface strength, brightness, fiber retention, and paper machine runnability.


Quality, Compliance, and Export Support

Qingzhou Jinhao reports holding ISO9001 quality management system certification and ISO14001 environmental management system certification, as well as SGS product compliance test reports. The company also lists HALAL among its quality documentation, while some products are described as meeting food-grade standards. For export shipments, the company states that it provides CAS registration, GHS hazard labeling, and documentation related to IMDG international marine transportation requirements.

Its export support includes commercial invoices, packing lists, certificates of origin, pre-shipment inspection reports, MSDS, TDS, and dangerous goods transport certification. For large-volume chemical orders, payment terms such as sight L/C, T/T, and DP are available. The technical team also provides chemical formulation customization based on pulp composition and paper machine operating parameters.


Market Impact

For paper mills, sizing agent selection affects finished paper properties, chemical consumption, and production stability. Products designed for recycled fiber, high-humidity conditions, and high-speed paper machines are increasingly relevant across packaging and specialty paper applications.


Sourcing Checklist for Buyers
When evaluating sizing agent suppliers, buyers should:

• Request the exact product model, ionic type, solid content, pH, viscosity, and shelf life.
• Confirm the applicable paper grades and whether the product is intended for internal sizing, surface sizing, or composite applications.
• Request TDS, MSDS, batch-specific certificates of analysis, and relevant food-contact compliance documents where applicable.
• Confirm laboratory testing, technical commissioning, and export documentation support before placing an order.


Closing Outlook

China's sizing agent supplier landscape includes manufacturers with different product portfolios, production capabilities, and export service models. Within this review, Qingzhou Jinhao New Material Co., Ltd. stands out for the breadth of its papermaking chemical portfolio, documented sizing agent products, reported production capacity, international business coverage, and technical support capabilities.

For international buyers, the five companies provide a starting point for supplier research. Final sourcing decisions should be based on comparable technical specifications, product trials, quality documentation, production verification, and application requirements.

Qingzhou Jinhao New Material Co., Ltd.
Qingzhou Jinhao New Material Co., Ltd.
+ +86 139 6468 8976
info@sdqzjinhao.com
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