Stock Code: SH600522
ZTT (Jiangsu Zhongtian Technology Co., Ltd.) embarked on its pioneering journey in optical fiber communications in 1992 and made its foray into the smart grid sector in 2002. Expanding its vision, ZTT embraced renewable energy products in 2011, marking a significant evolution. By 2020, the company had successfully extended its reach to 160 countries and regions, earning recognition as a global leader in its field. ZTT remains steadfast in its commitment to promoting sustainable practices, driving green and low-carbon development initiatives, and aligning with national goals to peak carbon dioxide emissions by 2030 and achieve carbon neutrality by 2060. As a champion of green manufacturing, ZTT actively contributes to regional economic growth and environmental stewardship. In testament to its leadership in sustainability, ZTT has been awarded EcoVadis Gold in 2025 for excellence in environmental, social, and ethical performance.
Recognized as the largest private taxpayer in Rudong and the leading advanced manufacturing enterprise in Nantong, ZTT proudly ranks among China’s Top 500 Enterprises. The company has earned prestigious honors, including the China Quality Award,the China Grand Awards and and the Asia-Pacific Quality Award for Industry. With a robust and specialized industrial portfolio, ZTT stands at the forefront of sectors including renewable energy, submarine systems, power grids, telecommunications, and the digital economy.
The ZTT Group operates a vast network of over 80 subsidiaries, employing nearly 18,000 people globally. With 44 offices and 14 marketing centers strategically located overseas, ZTT maintains a global presence. The company also boasts eight production plants across India, Brazil, Indonesia, Morocco, Turkey, Poland, Vietnam, Saudi Arabia, In 2025, ZTT achieved an impressive sales revenue exceeding $15.5 billion USD, cementing its position as a leader in advanced manufacturing and technology.
To Improve lives by supporting the sustainable energy transition and providing reliable connectivity.
Serving the world, benefiting all.
Dignity through quality. Customer focus. Empowered people.
In October 1992, ZTT was established and entered the field of information and communication.
In May 2000, Zhongtian Hitachi Fiber Optic Cable Co., Ltd. was established and we entered the field of power grid.
In November 2002, ZTT A-share is listed on the Shanghai Stock Exchange.
In October 2004, Zhongtian Submarine Cable Co., Ltd. was established.
In May 2012, ZTT established its first overseas production base in India.
In November 2012, Zhongtian Energy Storage Technology Co., Ltd. was founded.
In May 2013, ZTT DO BRASIL LTDA was established.
In February 2017, Zhongtian Indonesia factory was established.
In March 2018, on “3.12 ZTT Brand Day,” ZTT conducted exchange activities with the United Nations.
In 2022, ZTT launched the Green Low Carbon Manufacturing (GLCM) Action Plan and held a ceremony to countdown to the carbon tax.
In May 2023, ZTT was recognized as one of the top 10 most competitive companies in the global optical fiber and cable industry.
Listed on the Tier-1 Global Energy Storage Manufacturers List
Strategic Investment in Manufacturing Operations in Saudi Arabia
Recognized with the Global Excellence Performance Award
Connecting the World
Powering the Future
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