1win

2022
2019
2002
1975
Revenue hit 2 billion yuan(¡Ö300 million US dollars); in September, invested in and took control of Ningxia Water Conservancy and Hydropower Survey and Design Institute Co., Ltd., and entered the steel-plastic composite pipe market
Founded with investment from the former Ministry of Water Resources and Electric Power of China
Maintained an annual revenue of 2 billion yuan(¡Ö300 million US dollars) for four consecutive years
Thecompany revenue exceeded 100 million yuan(¡Ö 15 million US dollars) for the first time

Implemented the factory director responsibility system, with Chen Jiaxing democratically elected as the factory director.

1989
Completed shareholding system reform and entered the plastic pipe industry
1998
August 2010: Listed on the Shenzhen Stock Exchange
2010
2013
The company revenue surpassed the 1 billion yuan £¨¡Ö150 million US dollars£©
2023
2024
Launched international business expansion
Ventured into the new energy sector
The 50th anniversary of the founding of Qinglong Pipes
2025
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