Nanjing Dongya High-Tech Materials Co., Ltd. was founded in 1994 and is located at No. 10 Xingzhuang Road, Nanqu District, Lishui Economic Development Zone, Nanjing City, Jiangsu Province. It is a high-tech material sole research and production enterprise that integrates research and development with large-scale production.

The company has 6 sets of industry-leading 60 megapascal ultra-high pressure supercritical foaming kettles, 18 sets of automated rubber vulcanization and compression machines, 20 sets of EVA secondary molding machines, 8 sets of IP injection units, 12 combination lines, and 2 sets of PU foaming lines, with an annual comprehensive production capacity of 15 million pairs of shoe soles. Since its establishment, the company has always adhered to the business philosophy of "honesty first, quality first, customer first", committed to providing customers with high-quality sole products, with the core goal of improving customer satisfaction. Through continuous research and innovation, we have successfully developed a series of high rebound, low-density, and pressure resistant non crosslinked physical foam shoe soles, including ultra-high pressure ATPU pure material, TPEE pure material, and PEBA pure material, as well as core products such as rubber foam oil resistant shoe soles, wear-resistant rubber soles, and cold resistant PU soles.

At present, a product system covering low-density lightweight, high rebound, long-lasting cushioning performance, anti-skid, wear-resistant, cold resistant, high temperature resistant, insulation, anti-static and other multidimensional properties has been formed. It is widely used in sports running shoes, basketball shoes, hiking shoes and outdoor shoes, workwear shoes, military and police shoes, casual shoes, fashion shoes, labor protection shoes and other civilian shoes, which can meet the diverse needs of various users.

The company always adheres to the principle of "survival through quality and development through management", implements the ISO9001 quality system, establishes a strict quality inspection mechanism, and wins wide recognition in the industry with stable product quality, promoting the "East Asia" brand to expand into the international market while deeply cultivating the domestic market. The company warmly welcomes customers from home and abroad to visit and guide us. We look forward to working hand in hand with you, forging ahead, and achieving a win-win future!

Technological Process

Product features and advantages:

Dongya New Materials has a complete and mature process system in the field of supercritical foaming products, covering multiple types of foaming products such as ATPU, TPEE, PEBAX, etc; We can independently develop foam particles, control the formula and process design, and support customized development according to customer needs.

In terms of equipment and technology for supercritical foaming products, East Asia New Materials adopts advanced solutions that are differentiated from the market. The products prepared have excellent physical properties, strong resistance to high and low temperatures, low density, and dense foam pores.

New Materials Products:

Comparison of foaming density and size of Dongya supercritical foaming products

ATPU Product Introduction

ATPU, also known as aliphatic thermoplastic polyurethane (TPU), is a high-performance material with excellent wear resistance, oil resistance, solvent resistance, and high temperature resistance. This material is widely used in the midsole of shoes, providing users with a comfortable foot feel and stable support.

ATPU Advantages and Characteristics

ATPU shoe midsoles have several significant advantages over traditional materials and have been widely used

Wear resistance: Aliphatic TPU material has excellent wear resistance and is suitable for making footwear products with high strength, durability, and high temperature and humidity requirements, such as basketball shoes, hiking shoes, outdoor shoes, etc.

Environmental friendliness: Aliphatic TPU is a recyclable and reusable thermoplastic material with significant environmental characteristics. There are no harmful substances produced during its production process, which meets the requirements of sustainable development.

Oil and solvent resistance: Aliphatic TPU has excellent oil and solvent resistance, and can maintain stable performance in various complex environments. Therefore, it has been widely used in industrial fields and specific outdoor scenarios.

ATPU Physical Property Report

TPEE Product Introduction

TPEE (thermoplastic polymer elastomer) is a commonly used polymer elastomer material, commonly used in the midsole of footwear. MTPEE material has more excellent physical properties and exhibits numerous advantages when applied to midsoles, such as wear resistance, oil resistance, and high tensile strength. TPEE material midsoles have been widely used in the footwear manufacturing industry, gradually replacing traditional rubber materials in some scenarios.

Advantages and Characteristics of TPEE

Elasticity and comfort:

The TPEE material midsole has excellent elasticity and comfort. Its flexibility allows shoes to better adapt to the shape of the foot, providing better support and protection; And it can reduce the pressure during walking, making the wearer feel comfortable and relaxed. Good resilience: TPEE midsole provides long-lasting and stable cushioning, maintaining outstanding comfort even after prolonged wear.

Wear and oil resistance: TPEE material midsole has excellent wear and oil resistance performance. Wear resistance can reduce the wear and tear of shoes during long-term use, extending their service life; Oil resistance enables it to adapt to various environments and better meet the needs of long-term standing or walking scenarios.

TPEE Physical Property Report

On November 5-7, 2025, Interfoam China 2025 Shanghai International Foam Material Technology Industry Exhibition will be held at the Shanghai New International Expo Center! Interfoam Foam Materials Exhibition was founded in 2019. As a foam industry exhibition platform serving the Asian market, Interfoam has always been committed to promoting innovative development of foam technology. Foam materials play a crucial role in multiple fields due to their excellent performance. Interfoam will continue to promote the application practice of foam materials in multiple fields, helping our exhibitors achieve transactions and assisting our visitors in finding suitable foam solutions. Welcome to the booth of Nanjing Dongya High-Tech Materials Co., Ltd! We sincerely invite you to explore the deep integration of supercritical foam materials (ATPU, TPEE, PEBAX, etc.) and high-performance shoe soles in the manufacturing of sports running shoes, outdoor shoes, workwear shoes, and other footwear. Let's discuss the upgrading trend of shoe sole functionality and comfort driven by material innovation, and the inspiration sparks of collision customization solutions and industry synergy development!