Billion-Level Project Officially Launched! Building A Hexanediamine-Hexamethylenediamine-Nylon 66-High-End Nylon Industry Chain

The Tianjin NHU project is located in the Nangang Industrial Zone and is invested and constructed by Zhejiang NHU Co., Ltd., the parent company of Tianjin NHU Materials Technology Co., Ltd., and a leading private enterprise. The total area of the project is approximately 380,000 square meters. The project will build production facilities for adiponitrile, hexamethylenediamine, and nylon, along with auxiliary production facilities, using NHU's own patented technology. It aims to fully develop the adiponitrile-hexamethylenediamine-nylon 66 key intermediate and high-end nylon new material industrial chain, breaking through the technical barriers of key intermediates in nylon production. This will help in promoting the extension and development of the upstream and downstream industrial chain for high-performance nylon materials in the region. Its products are widely used in various popular fields such as automotive, electronics and electrical, and new energy, with broad market prospects.

"The first phase of the project will establish a complete industrial chain from adiponitrile to hexamethylenediamine and then to nylon 66. Currently, in this product area, China still primarily relies on imports. After the completion of the first phase, we will solve the 'bottleneck' problem through Xinhacheng's proprietary technology, achieving domestic production of the entire industrial chain, further reducing the costs of related raw materials, and promoting the rapid and healthy development of the industry." Xu Lihua, deputy commander of the new materials industry chain project at Tianjin Xinhacheng Materials Technology Co., Ltd., stated that Xinhacheng values the unique advantages of the Nangang Industrial Zone in terms of raw material supply, logistics support, and industrial clustering. The project will achieve closer cooperation with upstream and downstream enterprises in the Nangang Industrial Zone, and in the future, the company will assess its development needs and may continue to establish new industrial chain projects in the TEDA area.

According to reports, Tianjin Xinhacheng Material Technology Co., Ltd.'s parent company, Zhejiang Xinhacheng Co., Ltd., has established multiple modern production bases across the country. Relying on the two major technology platforms of "Chemistry+" and "Biology+", it focuses on the research, development, production, sales, and service of functional chemicals such as nutritional products, flavor and fragrance, new materials, and active pharmaceutical ingredients.

It is understood that after the 1.2 million tons of ethylene project officially went into operation in the fourth quarter of last year, it accelerated the formation of multiple industrial chains in the midstream and downstream of the petrochemical industry. Xinhecheng will layout its self-developed adiponitrile-nylon industrial chain in Nangang, which can utilize the butadiene produced by the upstream Nangang ethylene project to form a wall supply; at the same time, it can break the long-term monopoly of Invista on adiponitrile and.

"The Xinhengcheng project is a key link for our city to extend towards downstream high value-added products, and it serves as a model case of 'determining production by the chain, attracting investment by production, and revitalizing businesses by commerce,' according to a relevant official from the Nankang Industrial Promotion Office of Tianjin Economic Development Zone. In the first half of this year, the Nankang Industrial Zone has facilitated the signing and landing of six projects with a total investment of approximately 8.2 billion yuan, including China Electric Power Construction, Lanpu New Materials, and others; promoted trial production and production of 14 projects, such as Sinochem International and Pierson Phase II; and initiated construction of 11 projects, including CNOOC Research Institute and Green Ling Phase II, providing significant support for the regional industrial chain to link, supplement, and strengthen."

It is reported that to ensure the smooth progress of the Tianjin NHU project, multiple departments in the Tianjin Economic-Technological Development Area formed a special team to collaborate and make use of several innovative reform measures, such as the "TEDA Industrial Reform 5.0". These efforts helped the NHU project commence 2-3 months ahead of the original schedule, creating a "speed-up" in petrochemical project construction.

In order to better support enterprise development and considering the large scale and long duration of the Tianjin Xinhacheng project, relevant departments of the Tianjin Economic-Technological Development Area have implemented various innovative reform measures to benefit enterprises. These include "expert + dual manager" services, simulated approvals, advance foundation work, separate construction permits for different units, and acceptance with deficiencies. These measures aim to compress the preparatory time for projects to the greatest extent possible, effectively ensuring that projects can "start construction early, build early, and begin production early."

"The commencement of the Tianjin NHU project is not only an important milestone in the enterprise's own development but also another major achievement in the vigorous development of the private economy in the Tianjin Economic-Technological Development Area (TEDA). In recent years, as TEDA has been intensifying efforts to create a market-oriented, law-based, and international first-class business environment, the driving force for the development of the private economy has been accelerating, injecting strong momentum into the high-quality development of the regional economy," said Li Weihua, Director of the Development and Reform Bureau of TEDA, as he presented a vivid picture of the thriving regional private economy to reporters with a series of dynamic figures.

As of June 2025, the number of private enterprises in the Tianjin Economic-Technological Development Area exceeded 50,000, accounting for more than 92% of the total number of enterprises in the region. The total industrial output value reached 25.9 billion yuan, the operating income of six key service sectors reached 21.1 billion yuan, sales amounted to 90.9 billion yuan, retail sales reached 4.6 billion yuan, revenue from the transportation industry reached 42.9 billion yuan, and private investment amounted to 3.6 billion yuan.