Updated Sep 13, 2026 · Public platform & industry data

Sep 13, 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, Shanghai Youen Chemical Co., Ltd, Dongguan Yisike Plastic Co., Ltd, Shanghai Ouqinghong Chemical Co., Ltd, Dongguan Caihua Plastic Technology Co., Ltd, Dongguan Yisike Plastic Co., Ltd, Dongguan Weicai Plastic Raw Materials Co., Ltd, Guangzhou Weihua Biotechnology Co., Ltd, Shaanxi Xingbei Aike Biotechnology 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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Shanghai Youen Chemical Co., Ltd
Overall Score4.8 / 5
Est. Date2005-06-23
Registered Capital1000K CNY

Shanghai Youen Chemical Co., Ltd. is registered at Room 10, Building 3, No. 32 Hangxing South Road, Hangtou Town, Pudong New Area. The registration authority is the Pudong New Area Market Supervision Administration, and the legal representative is Peng Shuli. Its business scope includes technical development, technical consulting, technology transfer, and technical services in the field of fine chemical products, sales of chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), advertising materials, packaging materials, clothing and apparel, office supplies, and daily necessities. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Pei, Hand Feel Agent, Screw Cleaning Material

TOP4
Dongguan Yisike Plastic Co., Ltd
Overall Score4.7 / 5
Est. Date2016-06-12
Registered Capital1000K CNY

Dongguan Yisike Plastic Co., Ltd., with its registered address at No. 56, Shuxing Street, Changping Town, Dongguan City, Guangdong Province, is registered with the Dongguan Market Supervision Administration. The legal representative is Yin Yong, and its business scope includes general projects such as plastic product manufacturing; Sales of plastic products; Rubber product manufacturing; Sales of rubber products; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Manufacturing of engineering plastics and synthetic resins; Sales of engineering plastics and synthetic resins; Sales of chemical products (excluding licensed chemical products); Sales of high-quality synthetic rubber; Manufacturing of specialized chemical products (excluding hazardous chemicals); Manufacturing of biobased materials; Sponge product manufacturing; Sponge product sales; Manufacturing of new membrane materials; Sales of new membrane materials; Sales of new catalytic materials and additives; Research and development of new material technology; Manufacturing of hardware products; Wholesale of hardware products; Electronic product sales. (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, Pa66 Plastic, Peek Plastic

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
Dongguan Caihua Plastic Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2023-08-03
Registered Capital1000K CNY

Dongguan Caihua Plastic Technology Co., Ltd., with its registered address at Room 123, Building 8, Zhujin Plastic Commercial Center, No. 68-1 Xianwei Road, Zhangmutou Town, Dongguan City, Guangdong Province, China. The registration authority is Dongguan Market Supervision Administration, and the legal representative is Xu Qi. The company's business scope includes general projects such as new material technology promotion services; Research and development of new material technology; Sales of engineering plastics and synthetic resins; Sales of synthetic materials; Sales of high-quality synthetic rubber; Sales of surface functional materials; Sales of new organic active materials; Sales of rubber products; Sales of plastic 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, Zhonghao Morning Light, Juhua

TOP7
Dongguan Yisike Plastic Co., Ltd
Overall Score4.6 / 5
Est. Date2016-06-12
Registered Capital1000K CNY

Dongguan Yisike Plastic Co., Ltd., with its registered address at No. 56, Shuxing Street, Changping Town, Dongguan City, Guangdong Province, is registered with the Dongguan Market Supervision Administration. The legal representative is Yin Yong, and its business scope includes general projects such as plastic product manufacturing; Sales of plastic products; Rubber product manufacturing; Sales of rubber products; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Manufacturing of engineering plastics and synthetic resins; Sales of engineering plastics and synthetic resins; Sales of chemical products (excluding licensed chemical products); Sales of high-quality synthetic rubber; Manufacturing of specialized chemical products (excluding hazardous chemicals); Manufacturing of biobased materials; Sponge product manufacturing; Sponge product sales; Manufacturing of new membrane materials; Sales of new membrane materials; Sales of new catalytic materials and additives; Research and development of new material technology; Manufacturing of hardware products; Wholesale of hardware products; Electronic product sales. (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, Pei Polyetherimide, Conductive Anti-Static Pp

TOP8
Dongguan Weicai Plastic Raw Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2021-03-10
Registered Capital1000K CNY

Dongguan Weicai Plastic Raw Materials Co., Ltd., with its registered address at No. 32-1 Haoyi Lane, Zhangluo Flagpole, Zhangmutou Town, Dongguan City, Guangdong Province, is registered with the Dongguan Municipal Administration for Market Regulation. The legal representative is Li Cai, and its business scope includes the sale of plastic raw materials, plastic products, plastic accessories, plastic pigments, polymer materials, plastic additives (excluding hazardous chemicals), hardware products, and electronic products; Import and export of goods or technology (excluding goods and technology prohibited by the state or subject to administrative approval). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Pei, Swiss Ems, Tpee Korea Sk

TOP9
Guangzhou Weihua Biotechnology Co., Ltd
Overall Score4.5 / 5
Est. Date2022-01-18
Registered Capital5000K CNY

Guangzhou Weihua Biotechnology Co., Ltd., with its registered address at Room 1253, 1-4/F, No. 20 Zhangmushan, Cencun, Tianhe District, Guangzhou (office only), registered with the Market Supervision Administration of Tianhe District, Guangzhou, and represented by Qin Jiangkun as the legal representative. Its business scope includes technology intermediary services; Promotion services for new material technology; Research and development of new material technology; Sales of chemical products (excluding licensed chemical products); Sales of office equipment and consumables; Biomass energy technology services; Sales of daily chemical products; Sales of specialized chemical products (excluding hazardous chemicals); Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of biochemical product technology;; Import and export of goods;. Core products: Pei, Dmg1, 2-Dinutmeg Glyceride, Β - Glucan Derivatives

TOP10
Shaanxi Xingbei Aike Biotechnology Co., Ltd
Overall Score4.4 / 5
Est. Date2022-08-30
Registered Capital1000K CNY

Shaanxi Xingbei Aike Biotechnology Co., Ltd., with its registered address at Room 1806, Block B, Bailong Plaza, No. 129 Xiaozhai East Road, Yanta District, Xi'an City, Shaanxi Province, is registered with the Market Supervision and Administration Bureau of Yanta District, Xi'an City. The legal representative is Qi Naili, and the business scope includes general projects such as research and development of bio based material technology; Research and development of bio based material polymerization technology; Biomass energy technology services; Research and development of biochemical product technology; Sales of biobased materials; Medical research and experimental development; Sales of chemical products (excluding licensed chemical products); Sales of instruments and meters; Sales of packaging materials and products; Sales of office equipment and consumables. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Inspection and testing services. (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 results.). Core products: Pei, Sugar Chemistry, Click On Chemical Dbco

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
Shanghai Youen Chemical Co., Ltd2005-06-23Pei, Hand Feel Agent, Screw Cleaning Material1000K CNYNot Supported
Dongguan Yisike Plastic Co., Ltd2016-06-12Pei, Pa66 Plastic, Peek Plastic1000K CNYSupported
Shanghai Ouqinghong Chemical Co., Ltd2023-11-08Pei, Hdpe, Lg Chem10000K CNYNot Supported
Dongguan Caihua Plastic Technology Co., Ltd2023-08-03Pei, Zhonghao Morning Light, Juhua1000K CNYSupported
Dongguan Yisike Plastic Co., Ltd2016-06-12Pei, Pei Polyetherimide, Conductive Anti-Static Pp1000K CNYNot Supported
Dongguan Weicai Plastic Raw Materials Co., Ltd2021-03-10Pei, Swiss Ems, Tpee Korea Sk1000K CNYSupported
Guangzhou Weihua Biotechnology Co., Ltd2022-01-18Pei, Dmg1, 2-Dinutmeg Glyceride, Β - Glucan Derivatives5000K CNYNot Supported
Shaanxi Xingbei Aike Biotechnology Co., Ltd2022-08-30Pei, Sugar Chemistry, Click On Chemical Dbco1000K 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 prioritize confirming key parameters such as purity level, particle size distribution, and thermal stability, which directly affect the applicability of materials in the fields of electronic packaging or medical devices.
  • In industrial coating applications, the high temperature resistance and dielectric strength of PEI are the core considerations. Materials of different thicknesses need to match the insulation requirements of specific equipment, and suppliers can be requested to provide measured data reports during procurement.
  • When selecting a supplier for PEI, it is recommended to comprehensively evaluate product compatibility, business qualifications, enterprise activity, industry performance, and platform statistics, and prioritize manufacturers with stable supply records in the field of polymer materials.
  • For high-frequency procurement scenarios in the aerospace industry, it is necessary to pay attention to whether the PEI supplier has the mass production capability of radiation resistant modified products, and to verify their material batch consistency performance by referring to industry data.

Knowledge Base

Q

This article analyzes the differences in thermoplastic and thermosetting properties of PEI (polyetherimide) materials, comparing processing methods, application scenarios, and performance characteristics to help readers choose the appropriate type according to their needs.

Q

Pei is a type of thermoplastic called polyetherimide in Chinese. It is an amber colored transparent plastic with high heat resistance, high strength, and excellent fatigue resistance. Pei is mainly used to manufacture high-performance engineering parts, such as parts in the automotive, electronics, and aerospace fields, which can maintain excellent performance at high temperatures.

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