About Us

Company Profile

Jiangsu Dingshang Electronic Materials Co., Ltd. (Stock Abbreviation: Dingshang Electronics, Stock Code: 873521) is a leading enterprise in China's heat shrink tubing sector, specializing in the R&D and manufacturing of organic polymer materials, heat shrink tubing, and electronic components. The company's core products include PVC/PET heat shrink tubing, providing precision insulation coating and labeling solutions for aluminum electrolytic capacitor housings. These products are widely used in aluminum electrolytic capacitors, rechargeable batteries and battery pack packaging, inductor labeling, and insulation coating for connectors and terminals.

Founded in 1997, the company obtained ISO9001 quality management system certification in 2004, relocated to Haian City, Nantong, Jiangsu, and was renamed Nantong Dingshang Electronics in 2013. In 2019, it completed its shareholding reform and established Jiangsu Dingshang Electronic Materials Co., Ltd. The company was successfully listed on the National Equities Exchange and Quotations (NEEQ) in 2020. That same year, it earned IATF16949 automotive quality management system certification and was recognized as a national high-tech enterprise. Leveraging imported raw materials and advanced production equipment, the company continues to deepen its expertise in China's new energy battery sector and related industries. In terms of quality management, R&D innovation and product quality capabilities have reached new heights.

History

1997
Factory in Jiangsu
Start heat shrink tubing production
2004
Via ISO9001
Quality Management System Certification
2013
Relocate to current address
Renamed to Nantong Dingshang Electronics
2019
Shareholding restructuring
Establish Jiangsu Dingshang Electronic Materials Co., Ltd.
2020
List on the New OTC Market
Stock Code 873521
2024
Achieve IATF6949 Certification
Recognition of National High-Tech Enterprises and Specialized, Refined, Differential, and Innovation (SRDI) SMEs

Company Outlook

As global environmental standards tighten, customers are increasingly switching to more eco-friendly PET heat shrink tubing with superior high-temperature performance. Leveraging our comprehensive strengths in production, equipment, technology, and cost efficiency, our market prospects continue to grow.

The company has established long-term, stable partnerships with 126 customers. Key clients include Jianghai Group, Wanyu Sanxin, Xinnengneng, Gree Xinyuan, Lilong Electronics, Dongjia Electronics, Fenghua High-Tech, Zhibao Electronics, Green Gem, and Xinzhuangyuan, among other industry leaders. With the rapid growth in new energy battery production, demand for PET sleeves has surged significantly, leading to stable collaborations with top-tier new energy battery manufacturers such as BYD, Haosida, and Zhuoneng.

Selected Partners

Jianghai Group

Jianghai Group

Wanyu Sanxin Electronics (Dongguan) Co., Ltd.

WanYu Sanxin Electronics (Dongguan) Co., Ltd.

Sanneng Electronics

Sanneng Electronics

Zhuhai Gree Xinyuan Electronics Co., Ltd.

Zhuhai Gree Xinyuan Electronics Co., Ltd.

Lilong Electronics (Huizhou) Co., Ltd.

Lilong Electronics (Huizhou) Co., Ltd.

Dongjia Electronics (Chenzhou) Co., Ltd.

Dongjia Electronics (Chenzhou) Co., Ltd.

Guangdong Fenghua Advanced Technology Co., Ltd.

Guangdong Fenghua Advanced Technology Co., Ltd.

Zhibao Electronics Co., Ltd.

Zhibao Electronics Co., Ltd.

Zhaoqing Green Gem Electronics Technology Co., Ltd.

Zhaoqing Green Gem Electronics Technology Co., Ltd.

Shenzhen Xinzhongyuan Electronics Co., Ltd.

Shenzhen Xinyuan Electronics Co., Ltd.

Wait for more high-quality customers

Corporate Honors

Focused on heat shrink tubing, driving innovation through quality.

Company Honors & Awards

Social Responsibility

Give Back to the Community · Spread Warmth

Jiangsu Dingshang Electronic Materials Co., Ltd. has consistently upheld its commitment to "developing the enterprise while giving back to society" alongside its deep expertise in heat-shrink tubing. Chairman Ge Jianping has long dedicated himself to public welfare initiatives, including poverty alleviation, educational support for students, and care for the elderly. He has sponsored numerous underprivileged students through their education and actively participated in local filial piety cultural events, demonstrating corporate social responsibility with tangible actions that spread warmth and positive energy.

Charity Education Support

Honored for Filial Piety and Kindness

Targeted Poverty Alleviation

Targeted Poverty Alleviation · Building a Better Future

Respect the Elderly and Cherish Family

Love for Learning, Warmth on Campus

Thank You Letter from a Beneficiary Student

Corporate Culture

Mission

High-quality, high-reliability heat shrink tubing solutions for your customers.

Vision

Become a leading domestic and internationally renowned heat shrink tubing manufacturer

Values

Integrity, Professionalism, Innovation, Win-Win

Contact Us

If you have any questions or are interested in collaborating, feel free to contact us anytime.

Get Started

Contact Us

2512915627@qq.com
Zhouzhuang Village, Binhai New Area, Haian City, Nantong City, Jiangsu Province, Group 8

About Us

TINGSUN is a leading manufacturer specializing in aluminum electrolytic capacitors and PET/PVC heat shrinkable tubing, with nearly 30 years of expertise. We offer custom development solutions and provide reliable supply for the automotive electronics, new energy, and consumer electronics industries.

© 2026 Jiangsu Tingsun Electronic Materials Joint-Stock Co., Ltd. All rights reserved. ICP License No. 2021053073