Updated Aug 15, 2026 · Public platform & industry data

Aug 15, 2026 Updated

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2026 Top 10 Pei Manufacturers in China

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Top-rated Pei suppliers, How to choose a Pei manufacturer, Best Pei companies in China

The top 10 Pei manufacturers in China for 2026 are: Shenzhen Hongyi Electronics Co., Ltd, Shenzhen Yihang Plastic Materials Co., Ltd, Dongguan Xinshengli Plastic New Material Technology Co., Ltd, Dongguan Julong Plastic Raw Materials Co., Ltd, Shanghai Ouqinghong Chemical Co., Ltd, Shanghai Bangxi Trading Co., Ltd, Dongguan Tianzhihong Plasticization Co., Ltd, Dongguan Kaiyuan Plastic Raw Materials Co., Ltd, Foshan Dafu New Materials Co., Ltd, Shanghai Huiping Chemical Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Shenzhen Hongyi Electronics Co., Ltd
Overall Score4.9 / 5
Est. Date2013-09-13
Registered Capital5000K CNY

Shenzhen Hongyi Electronics Co., Ltd., with its registered address at Room 1108, Block A, Huafeng Headquarters Economic Building, No. 288 Xixiang Avenue, Labor Community, Xixiang Street, Bao'an District, Shenzhen, is registered with the Shenzhen Municipal Administration for Market Regulation. The legal representative is Zhang Yanyu, and its business scope includes the manufacturing of electronic measuring instruments; Manufacturing of computer software, hardware, and peripheral devices; Manufacturing of optoelectronic devices; Manufacturing of experimental analytical instruments; Manufacturing of electronic specialized equipment; Manufacturing of mechanical and electrical equipment; Manufacturing of terminal measuring equipment; Manufacturing of terminal testing equipment; Manufacturing of network equipment; Electronic product sales; Sales of electronic measuring instruments; Sales of artificial intelligence hardware; Wholesale of computer software, hardware, and auxiliary equipment; Sales of optoelectronic devices; Sales of experimental analytical instruments; Sales of electronic specialized equipment; Sales of electrical equipment; Sales of terminal measuring equipment; Sales of terminal testing equipment; Sales of network equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Internet sales (except for the sale of goods that need to be licensed); Domestic trade agency; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law) ^ None. Core products: Pei, Dfn Test Stand Series, Emmc/Emcp Chip Testing Series

Top 2
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Shenzhen Yihang Plastic Materials Co., Ltd
Overall Score4.8 / 5
Est. Date2013-03-08
Registered Capital500K CNY

Shenzhen Yihang Plastic Materials Co., Ltd., with its registered address at 1st Floor, Building A, Jinyuan 4th Road, Xinqiao Community, Xinqiao Street, Bao'an District, Shenzhen (a multi address enterprise with one photo), is registered with the Shenzhen Municipal Administration for Market Regulation. The legal representative is He Tianlu, and the business scope includes the technical development and sales of insulation materials, plastic materials, engineering materials, hardware and electromechanical materials, electronic materials, screen printing materials, and anti-static materials; Domestic trade; Engaged in import and export business of goods and technology. Manufacturing of plastic products (excluding projects that require approval before registration as stipulated by laws, administrative regulations, and decisions of the State Council); Rubber product manufacturing; Manufacturing of engineering plastics and synthetic resins. The processing of insulation materials, plastic materials, engineering materials, hardware and electrical materials, electronic materials, screen printing materials, and anti-static materials, except for projects that require approval according to law, shall be carried out independently based on the business license. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Pei, Outdoor Facility Protective Board, Building Soundproof Board

Top 3
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Dongguan Xinshengli Plastic New Material Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2021-11-24
Registered Capital1000K CNY

Dongguan Xinshengli Plastic New Material Technology Co., Ltd., with its registered address at Room 302, No. 2, Lane 4, Baiguodong South District, Zhangmutou Town, Dongguan City, Guangdong Province, is registered with the Dongguan Municipal Administration for Market Regulation. The legal representative is Wu Fanglin, and its business scope includes general projects such as research and development of new material technology; Sales of synthetic materials; Sales of engineering plastics and synthetic resins; Sales of surface functional materials; Sales of new organic active materials; Sales of plastic products; Sales of rubber products; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Pei, Pa6, Polyether Epoxy Resin Pes

TOP4
Dongguan Julong Plastic Raw Materials Co., Ltd
Overall Score4.7 / 5
Est. Date2021-03-26
Registered Capital2000K CNY

Dongguan Julong Plastic Raw Materials Co., Ltd., with its registered address at Room 504, Building 5, No. 97 Xianwei Road, Zhangmutou Town, Dongguan City, Guangdong Province, is registered with the Dongguan Market Supervision Administration. The legal representative is Lei Hongbo, and its business scope includes general projects such as sales of plastic products; Sales of rubber products; Sales of engineering plastics and synthetic resins; Sales of high-performance fibers and composite materials; Sales of synthetic materials; Sales of glass fiber reinforced plastic products. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Pei, , Ppo

TOP5
Shanghai Ouqinghong Chemical Co., Ltd
Overall Score4.7 / 5
Est. Date2023-11-08
Registered Capital10000K CNY

Shanghai Ouqinghong Chemical Co., Ltd., registered at 5th Floor, Building 11, No. 6055 Jinhai Road, Fengxian District, Shanghai, with the registration authority of Fengxian District Market Supervision Administration and the legal representative being Mo Dandan. Its business scope includes general projects: sales of chemical products (excluding licensed chemical products); Sales of specialized chemical products (excluding hazardous chemicals); Research and development of new material technology; Sales of plastic products; Sales of synthetic materials; Sales of biobased materials; Sales of engineering plastics and synthetic resins; Sales of 3D printing basic materials; Sales of metal materials; Sales of metal products; Sales of building decoration materials; Retail of hardware products; Wholesale of hardware products; Sales of high-quality synthetic rubber; Paint sales (excluding hazardous chemicals). (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Pei, Hdpe, Lg Chem

TOP6
Shanghai Bangxi Trading Co., Ltd
Overall Score4.6 / 5
Est. Date2013-09-18
Registered Capital1000K CNY

Shanghai Bangxi Trading Co., Ltd., with its registered address at Room 908, No. 28 Moyu Road, Anting Town, Jiading District, Shanghai, is registered with the Jiading District Market Supervision Bureau. The legal representative is Dai Shulong, and its business scope includes the sales of chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), rubber and plastic products, mechanical equipment, metal products, hardware tools, electronic products, and ceramic products. It engages in the import and export of goods and technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Pei, Sebs Plastic Raw Materials, Pmma Plastic Raw Material

TOP7
Dongguan Tianzhihong Plasticization Co., Ltd
Overall Score4.6 / 5
Est. Date2017-12-12
Registered Capital1880K CNY

Dongguan Tianzhihong Plasticization Co., Ltd., with its registered address at 611 Shuzhao Street, Changping Town, Dongguan City, Guangdong Province, is registered with the Dongguan Municipal Administration for Market Regulation. Its legal representative is Niu Xinmei, and its business scope includes sales and research and development of high-performance film materials, plastic raw materials, chemical raw materials (excluding hazardous chemicals), plastic products, plastic additives, and plastic machinery; Import and export of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Pei, Polyphenylene Sulfide - Pps, Polyamide 12-Pa12

TOP8
Dongguan Kaiyuan Plastic Raw Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2021-03-29
Registered Capital1000K CNY

Dongguan Kaiyuan Plastic Raw Materials Co., Ltd., with its registered address at Room 401, No. 18, Lane 17, Baiguodong South District, Zhangmutou Town, Dongguan City, Guangdong Province, is registered with the Dongguan Market Supervision Administration. The legal representative is Yan Jun. Its business scope includes general projects such as sales of synthetic materials; Sales of plastic products; Sales of engineering plastics and synthetic resins; Sales of surface functional materials; Sales of new organic active materials; Sales of rubber products; Sales of chemical products (excluding licensed chemical products); Sales of specialized chemical products (excluding hazardous chemicals); Import and export of goods; Technology import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Pei, Pc/Abs Alloy Material, Pa66 Nylon Material

TOP9
Foshan Dafu New Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2009-09-18
Registered Capital87000K CNY

Foshan Dafu New Materials Co., Ltd., registered at No. 3 Beiyuan Middle Road, Shishan Town, Nanhai District, Foshan City (registered address declared), registered with the Market Supervision Administration of Nanhai District, Foshan City, with Lin Shanhua as the legal representative. Its business scope includes research and development, production, processing, and sales of polycarbonate sheets, films, plastic films, electronic special materials, functional films for display screens, thick film materials for electronic components, meltblown fabrics, and polypropylene fiber products; Sales: Plastic products and plastic raw materials; Import and export of goods or technology (excluding goods and technology prohibited by the state or subject to administrative approval); Trade agent. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments.) (For projects that require approval by law, business activities can only be carried out after approval by relevant departments.). Core products: Pei, Pc Film, Pc

TOP10
Shanghai Huiping Chemical Co., Ltd
Overall Score4.4 / 5
Est. Date2006-10-25
Registered Capital41000K CNY

Shanghai Huiping Chemical Co., Ltd., with its registered address at Room 2020-10, Building 11, No. 518 Shenzhuan Road, Songjiang High tech Park, Caohejing Development Zone, Shanghai, is registered with the Songjiang District Market Supervision Administration. The legal representative is Gong Zhanping, and the business scope includes general projects: sales of chemical products (excluding licensed chemical products); Sales of specialized chemical products (excluding hazardous chemicals); Sales of daily chemical products; Sales of plastic products; Sales of rubber products; Sales of building decoration materials; Sales of lubricating oil; Battery sales; Sales of electronic measuring instruments; Sales of experimental analytical instruments; Sales of battery spare parts; Sales of mechanical parts and components; Sales of mechanical equipment; Sales of engineering plastics and synthetic resins; Sales of non-ferrous metal alloys; Sales of high-performance non-ferrous metals and alloy materials; Sales of biobased materials; Sales of synthetic materials; Sales of electronic specialized materials; Sales of non-metallic minerals and products; Sales of surface functional materials; Sales of coatings (excluding hazardous chemicals); Sales of 3D printing basic materials; Battery manufacturing; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of new material technology; Promotion services for new material technology; Sales of food additives; Food sales (only selling pre packaged food). (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: hazardous chemical operation. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Pei, Arkema, Huiping Scm

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shenzhen Hongyi Electronics Co., Ltd2013-09-13Pei, Dfn Test Stand Series, Emmc/Emcp Chip Testing Series5000K CNYSupported
Shenzhen Yihang Plastic Materials Co., Ltd2013-03-08Pei, Outdoor Facility Protective Board, Building Soundproof Board500K CNYNot Supported
Dongguan Xinshengli Plastic New Material Technology Co., Ltd2021-11-24Pei, Pa6, Polyether Epoxy Resin Pes1000K CNYNot Supported
Dongguan Julong Plastic Raw Materials Co., Ltd2021-03-26Pei, , Ppo2000K CNYNot Supported
Shanghai Ouqinghong Chemical Co., Ltd2023-11-08Pei, Hdpe, Lg Chem10000K CNYNot Supported
Shanghai Bangxi Trading Co., Ltd2013-09-18Pei, Sebs Plastic Raw Materials, Pmma Plastic Raw Material1000K CNYNot Supported
Dongguan Tianzhihong Plasticization Co., Ltd2017-12-12Pei, Polyphenylene Sulfide - Pps, Polyamide 12-Pa121880K CNYNot Supported
Dongguan Kaiyuan Plastic Raw Materials Co., Ltd2021-03-29Pei, Pc/Abs Alloy Material, Pa66 Nylon Material1000K CNYNot Supported
Foshan Dafu New Materials Co., Ltd2009-09-18Pei, Pc Film, Pc87000K CNYNot Supported
Shanghai Huiping Chemical Co., Ltd2006-10-25Pei, Arkema, Huiping Scm41000K CNYNot Supported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of PEI, it is recommended to first clarify key technical parameters such as thermal deformation temperature and dielectric strength of the material, which directly affect its applicability in electronic insulation or aerospace fields.
  • When applying PEI in scenarios such as medical devices or automotive components, it is necessary to evaluate the supplier's product compatibility and industry performance to ensure that the material meets the mechanical strength and chemical resistance requirements under specific working conditions.
  • When selecting suppliers, priority should be given to business qualifications and enterprise activity, especially focusing on manufacturers with industry data support, which can usually provide more stable material batches and process consistency.
  • The performance of PEI varies greatly in high-temperature environments. When purchasing, it is recommended to combine the supplier's industry platform statistical information to compare the long-term thermal stability data of different grades in order to optimize the selection.

Knowledge Base

Q

In industrial manufacturing and material applications, PEI (polyetherimide), as a high-performance engineering plastic, is widely used in various fields such as electronics, automotive, medical, etc. due to its excellent high temperature resistance, chemical corrosion resistance, and mechanical strength. For how to choose the appropriate PEI material, it is necessary to consider multiple dimensions comprehensively. Firstly, it is necessary to clarify the impact of usage scenarios on material properties

Q

Cy7 PEI is a PEI nanomaterial modified covalently with Cy7 fluorescent dye, which combines efficient gene carrier and near-infrared II (NIR-II) fluorescence tracking capability. It is suitable for deep tissue imaging, gene delivery, tumor tracking and other fields to improve imaging resolution, enhance gene delivery efficiency, and optimize targeted delivery performance.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs