About NT Film

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

Entai Environmental Protection Technology (Changzhou) Co., Ltd. (hereinafter referred to as "Entai Technology") was established in November 2016, specializing in the design, research and development, production, sales, and service of high-performance water treatment membranes. We have multiple series of products including reverse osmosis, anti fouling membranes, nanofiltration membranes, and special separation membranes. Entai Technology products are widely used in fields such as municipal sewage, industrial pure water, industrial wastewater/zero discharge, reclaimed water reuse, special separation, new energy, and seawater desalination.



Established in

3 +

Foreign Experts


Dr. Returnee

30 +

Master and undergraduate technical talents

As a key project in Changzhou City, the first phase of the company has a total investment of 300 million yuan and covers an area of 39 acres. It was officially put into operation in 2020, and the design and construction of the second line began in June of the same year. After the second line was put into operation, the company has an annual production capacity of 10 million square meters of reverse osmosis membranes and 2 million square meters of nanofiltration membranes.

At present, the company has obtained 20 authorized national patents, including 17 invention patents and 3 utility model patents. The company is currently one of the few enterprises in China that can master the core key technology of high-end membranes. Its product performance indicators such as water flux and desalination rate have reached the leading level in China, and can meet import substitution standards. In September 2020, a Series 150 million B financing was completed, led by three listed companies: Xingyuan Materials, Xinzhoubang, and Xiongtao Co., Ltd. In November 2022, we will complete the B+round of financing and introduce the fourth listed shareholder - Greenway. In 2020, Entai Technology's "Annual Production of 6 million square meters of Reverse Osmosis Membrane Components Project" was approved as an important project to enhance the core competitiveness of the central manufacturing industry. In 2021, the company was rated as a national high-tech enterprise and a small and innovative giant enterprise in Jiangsu Province.

Starting from 2021, the production base of Entai Changzhou has continuously reached its maximum design capacity. In August 2023, at the invitation of the Sichuan government, Entai built a second production base in Mianzhu City. The project is located in Jiangsu Industrial Park, Mianzhu City, with a first phase land area of 166 acres; 300 acres of land will be reserved for the second phase of the project. The first phase of construction includes 12 coating film production lines, 6 casting film production lines, and 50 roll film production lines. After construction, it can meet the annual production capacity demand of 60 million square meters of film, which is 1.5 million roll film components.

As a professional manufacturer of membrane separation components, Entai Technology has improved the consistency of membrane products in the process of technological development, thus enabling Entai membranes to reach an international first-class level in defect free ability. Looking ahead to the future, Entai Technology will continue to adhere to the development philosophy of "Made in China, Entai Brand, Strongest Pressure, and Stable Quality", enhance the company's technological research and development capabilities, expand production and operation scale, continuously grow and strengthen, and achieve corporate brand success.


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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