Founded in 2013 in Taishan, Guangdong — a national high-tech enterprise integrating structural-steel R&D, detailing, fabrication and installation.

Founded in July 2013 in Taishan, Jiangmen, Guangdong, JJHI is a national high-tech enterprise integrating structural-steel R&D, detailing, fabrication and installation.
Our 32,000 m² manufacturing base supports industrial buildings, transport infrastructure, public architecture and energy projects. Products have been delivered across China and to Thailand, Jordan, Egypt, Tanzania and Australia.
We are accelerating automation and digital manufacturing while advancing photovoltaic energy, storage and low-carbon operations — with an open global outlook, rigorous quality standards and a firm sustainability commitment.
"Dear partners worldwide: For more than a decade, JJHI has connected precision craftsmanship with global projects, including Hong Kong International Airport and Dubai Metro. We are accelerating automation and digital manufacturing while advancing photovoltaic energy, storage and low-carbon operations. With an open global outlook, rigorous quality standards and a firm sustainability commitment, we look forward to building enduring projects together."
Crafted with purpose, built for the future — elite teams, innovation, precision and enduring quality define everything we do.
Whole-process quality control.
Digital transformation.
Safety management.
Focus on carbon and ESG.
Regional project experience.
Foundation of JJHI's steel expertise and management systems.
Delivered metro station steelwork for a global landmark project.
Guangdong Jingjiu Heavy Industry Technology Co., Ltd. established.
Recognized as a national high-tech enterprise; company renamed.
Full manufacturing base with complete process chain put into operation.
Excavation steelwork for Hong Kong International Airport.
Automation, digital manufacturing and low-carbon operations.