About NT Film

N-Tech Environmental Protection Science and Technology (Changzhou) Co., Ltd.

N-Tech Environmental Protection Science and Technology (Changzhou) Co., Ltd. (hereinafter referred to as "N-Tech") was established in November 2016 and is located in Wujin High-tech Industrial Development Zone, Changzhou City, Jiangsu Province, specializing in high-performance water Design, research and development, production, sales and service of treatment membranes.

In 2016, the company introduced American experts and technical teams, based on the introduction of digestion and independent innovation, and established an international R&D team with strong technical strength. There are 3 foreign experts, 5 returnees with Ph.D., and more than 30 master and undergraduate technical talents. The product technology is at the international advanced level, and the performance indicators reach or even exceed the level of similar products in the United States, covering 6 types of seawater desalination reverse osmosis membranes, etc., which are used in seawater desalination, sewage treatment, industrial pure water, special separation and other fields.


Established in

3 +

Foreign Experts


Dr. Returnee

30 +

Master and undergraduate technical talents

As a professional manufacturer of membrane separation elements, N-Tech has improved the consistency of membrane products in the process of technology development, so that N-Tech diaphragms have reached the international first-class level in defect-free capability. Looking forward to the future, N-Tech will continue to adhere to the development concept of "Made in China, Entai brand, the strongest pressure, the most stable quality", enhance the company's technology research and development strength, expand the scale of production and operation, and continue to grow bigger and stronger, and achieve success enterprise brand.

As a key project in Changzhou, N-Tech has a total investment of more than 300 million yuan in the first phase, covering an area of ​​39 acres, building a workshop of 26,000 square meters, and purchasing 31 sets of production equipment such as polysulfone mixer, film casting machine, and film coating machine (set of ), officially put into production in 2020, and started the design and construction of the second line in June of the same year. By the end of 2021, the company will have an annual production capacity of 10 million square meters of reverse osmosis membranes and 2 million square meters of nanofiltration membranes. The sales are nearly 80 million yuan, and it is expected to reach 160 million in 2022.

In 2020, N-Tech's "Reverse Osmosis Membrane Module Project with an Annual Output of 6 Million Square Meters" was approved as an important project of "Central Enhancement of Manufacturing Core Competitiveness". In 2021, the company was rated as a National High-tech Enterprise New Little Giant Enterprise. At present, 8 national patents have been authorized, including 6 invention patents and 2 utility model patents. N-Tech will, as always, insist on deep cultivation in the field of membrane separation and provide the world with the highest quality membrane products.


Authorized national patent




Utility model patents



Three listed companies lead the investment

Senior Technology Material

Shenzhen Senior Technology Material Co., Ltd. was established in 2003 and listed on the Shenzhen Stock Exchange in December 2016. The stock abbreviation: Xingyuan Material, the stock code: 300568. It is one of the few professional diaphragm manufacturers in the world that has both dry and wet process

technologies and the first domestic batch export (South Korea LGC).




Greenmei Co., Ltd. (hereinafter referred to as "Greenmei" or "GEM") is based on the ideal of green ecological manufacturing (G-Green E-Eco M-Manufacturing). It was registered and established by the founder Professor Xu Kaihua in Shenzhen on December 28, 2001. It was listed on the Shenzhen Stock Exchange in January 2010, with stock code 002340. It is a leading enterprise in the world's hard alloy material industry chain and new energy material industry chain, and a leading new energy material and urban mining enterprise in the world.

Capchem Technology

Founded in 1996 and listed on the GEM (Growth Enterprise Market) Board of the Shenzhen Stock Exchange in 2010 (stock code 300037), Capchem is a leading global enterprise specialized in electronic chemicals and functional materials. The Company focuses on the R&D, production and sales of lithium battery chemicals, capacitor chemicals, organic fluorine chemicals and semiconductor chemicals, and is committed to providing customers with first-class “one-stop” products and solutions.

Xiongtao Co., Ltd

Xiongtao Co., Ltd. (stock code 002733) was established in 1994 and is a globally renowned smart energy solution service enterprise with five research and development production bases located in Shenzhen, Vietnam, Hubei, Datong, and Guangzhou. Its service network covers more than 100 countries and regions around the world.

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N-Tech will, as always, insist on deep cultivation in the field of membrane separation and provide the world with the best quality membrane products.

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