Introduction
HANGZHOU ZHENGHE NANO TECHNOLOGY CO., LTD. (杭州正和纳米科技有限公司) is a Chinese materials manufacturer based in Jiande, Hangzhou, Zhejiang, with a business centered on nano calcium carbonate, precipitated calcium carbonate, calcium hydroxide, calcium oxide, and related mineral-based and polymer-adjacent products for industrial applications. The company presents itself as a supplier to the plastics and rubber industry, while also serving coatings, inks, and other downstream materials markets through mineral fillers, plastic granules, plastic additives, and injection-molded products.
The company traces its roots to 1984 and describes its later development as being built on decades of calcium carbonate industry experience, with the current corporate entity established in 2013. Over time, it has expanded from basic calcium carbonate production into a broader materials platform that includes nano calcium carbonate, industrial precipitated calcium carbonate, PVC plastic granules, and silicone sealants, reflecting a strategy of moving both upstream into inorganic mineral processing and downstream into compound and application-oriented products.
In the plastics value chain, Zhenghe Nano is positioned as a fillers and additives supplier rather than a polymer resin producer. Its products are relevant to PVC compounding, rubber modification, coatings, ink formulation, and other applications where calcium carbonate is used to influence stiffness, whiteness, processability, and cost structure. The company also emphasizes technical services, process control, and export activity, and it has been associated with industry-standard drafting, patent activity, and participation in plastics-industry exhibition platforms.
History and Development
- The company states that its industrial origins date to 1984, providing a long operating base in calcium carbonate-related materials.
- The present company, Hangzhou Zhenghe Nanotechnology Co., Ltd., was established in 2013 as an upgraded and newly organized business built on that earlier technical and industrial foundation.
- By 2024, the company was reported to have begun construction of a 2-ton-per-year ink-grade nano calcium carbonate production line project, indicating continued investment in higher-value and application-specific product lines.
- The company has also been linked to recognition as a high-tech enterprise in Zhejiang and to participation in provincial “specialized and sophisticated” financing support programs, suggesting a development path supported by industrial policy and local finance.
Business Operations and Segments
Zhenghe Nano’s operations span several related segments within nonmetallic mineral processing and downstream materials manufacture.
- Nano calcium carbonate and precipitated calcium carbonate for industrial use.
- Calcium hydroxide and calcium oxide for mineral and chemical applications.
- Food-grade and pharmaceutical-grade calcium carbonate for regulated end uses.
- PVC plastic granules*, **plastic pellets*, and **plastic additives for compounding and processing.
- Injection-molded products and related manufacturing activity.
- Silicone sealants through its downstream materials portfolio.
- Import and export activities, indicating engagement in international trade channels.
Company materials describe multiple production bases or affiliated sites, including operations identified as Zhengfa Calcium Carbonate, Zhenghe Nano, Zhengchuang New Materials, and Zhengfa Pharmaceutical, with a reported combined industrial footprint and integrated output structure.
Products and Technologies
The company’s product portfolio is centered on calcium-based functional powders and compound materials used to modify physical properties in plastics and other formulations.
- Nano calcium carbonate: used as a functional filler and performance modifier in applications such as inks and plastics.
- Industrial precipitated calcium carbonate: a standard filler material used in compounding and formulation work.
- Calcium hydroxide and calcium oxide: foundational inorganic products used in chemical processing and related industrial systems.
- PVC plastic granules and plastic pellets: downstream materials that connect the company to the plastics conversion market.
- Plastic additives: supporting material modification in polymer applications.
- Silicone sealants: indicating participation in sealant-related downstream formulations.
A reported project for ink-specific nano calcium carbonate included equipment such as multifunctional powder dryers, elevators, mixers, dust collectors, automatic packaging machines, and Roots blowers, which indicates a process setup oriented toward fine-powder handling, drying, collection, and automated packing. The company also states that it operates an automated control system with production monitoring and visualized management, suggesting an emphasis on process stability and consistency in particulate products.
A patent record attributed to the company concerns an efficient centrifugal dewatering process and dewatering machine for ultrafine calcium carbonate slurry, indicating technical work focused on slurry dewatering and solid-liquid separation in fine calcium carbonate processing.
Applications and End Markets
Zhenghe Nano’s products are used in several downstream sectors, with the clearest overlap in plastics and rubber.
- PVC: calcium carbonate fillers and PVC granules support compounding and processing.
- Rubber: mineral fillers are widely used for reinforcement and formulation balance.
- Coatings and inks: the company explicitly cites these as application areas, and its ink-grade nano calcium carbonate project aligns with this market.
- Pharmaceutical and food-related applications: the company lists food-grade and pharmaceutical-grade calcium carbonate among its offerings.
- Injection molding and polymer products: its stated product mix includes injection-molded products and plastic-related materials.
In plastics applications, nano and precipitated calcium carbonate are generally valued for their role in filler loading, surface finish, opacity, and rheological control, and Zhenghe Nano’s product mix suggests a focus on these formulation functions within industrial compounding.
Global Presence and Market Position
The company describes itself as active in export and import, indicating participation beyond the domestic Chinese market. It has also appeared in international plastics-industry exhibition channels associated with CHINAPLAS, including supplier video and exhibitor information listings, which suggests marketing and business development aimed at plastics and rubber customers.
Industry-facing materials and third-party profiles characterize the company as a significant participant in China’s calcium carbonate and nonmetallic mineral supply chain, including references to industry committee roles and standard-drafting participation. Its positioning is therefore best understood as a specialized functional minerals and polymer-adjacent materials supplier, rather than a broad commodity chemicals producer.
Research and Development
The company states that it focuses on nanotechnology development and technical services, indicating that R&D is part of its core business model. Its product expansion into ink-grade nano calcium carbonate, plastic additives, and application-oriented compounds suggests continued development around particle engineering, dispersion performance, and process control.
The company has also been associated with:
- National-level and industry-standard drafting for calcium carbonate materials.
- Patent activity in slurry dewatering and ultrafine calcium carbonate processing.
- Cooperation with industry expert groups, according to company-facing and trade-published descriptions.
Sustainability and Environmental Initiatives
As a calcium carbonate and lime-related producer, Zhenghe Nano operates in a segment where energy use, dust control, and mineral-processing efficiency are material environmental considerations. The company has appeared on Zhejiang provincial lists related to energy budgeting and energy-use management, reflecting regulatory oversight of industrial energy consumption.
The company’s reported automated production monitoring, dust-collection equipment in new lines, and controlled powder-handling systems are consistent with industrial efforts to improve process stability and manage particulate emissions. At the sector level, mineral fillers such as calcium carbonate are often evaluated in terms of resource intensity, transport footprint, and compatibility with downstream lightweighting or formulation efficiency, although the environmental balance depends on specific product use and plant operations.
Financial Performance and Economic Impact
Third-party business profiles and local reporting describe Zhenghe Nano as operating across multiple sites with reported annual output figures in the range of hundreds of thousands of tonnes of related products and a substantial local industrial footprint. One report stated a combined footprint of 240 mu and annual output and revenue figures associated with the company group structure.
The company has also been reported to have received a RMB 20 million credit facility from postal banking support tied to specialized and sophisticated enterprise development, suggesting external recognition of its industrial role and growth potential. In regional economic terms, the company contributes to Zhejiang’s nonmetallic mineral processing base and to downstream supply for plastics, inks, coatings, and related materials.
Quality Management and Certifications
The company describes its operations as emphasizing quality, professionalism, and automated production control, which indicates a focus on process standardization and product consistency. It has been identified in public materials as a high-tech enterprise and as part of Zhejiang’s technology-oriented industrial ecosystem.
It has also been referenced as a participant in national and industry standard work for calcium carbonate products, suggesting recognition of its process and formulation expertise within the sector.
Innovations and Future Outlook
Zhenghe Nano’s most visible development direction is toward higher-specification calcium carbonate products for applications where particle characteristics and dispersion behavior matter, including inks, plastics, and functional fillers. Its move into polymer-related products such as PVC granules** and **plastic additives indicates a strategy of extending value capture beyond mineral processing into formulated materials and semi-finished polymer products.
Future competitiveness in this segment is likely to depend on:
- continued improvement in particle control and surface treatment,
- tighter automation and process stability,
- compliance with energy and environmental constraints,
- and the ability to supply application-specific grades to plastics, rubber, inks, and coatings customers.
References
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CPS+ eMarketplace. (n.d.). HANGZHOU ZHENGHE NANO TECHNOLOGY CO., LTD.,HANGZHOU ZHENGHE NANO TECHNOLOGY CO., LTD.,. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1027285Link