Who We Are
About Us
The beaver never stops building. Neither do we.
Our Story
Founded in October 2024 and incubated by the Hong Kong Center for Construction Robotics under the leadership of Professor Li Zexiang, Castor Construction Robotics is dedicated to bringing intelligent automation to the parts of construction that need it most — tasks that are physically demanding, time-sensitive, and hard to scale with manual labour alone.
Our products cover the full arc of rebar work: the RBTS1, the world's leading fully autonomous rebar tying robot; intelligent rebar cutting production lines; robotic arm systems; and custom automation built around your site's specific requirements. Our products have been commercially deployed and validated on over 80 real construction sites across Hong Kong SAR, mainland China and the Middle East.


Our Mission
“Much like beavers that meticulously construct dams to create sustainable ecosystems, we are dedicated to developing smarter, safer and more efficient construction processes. Our mission is to empower the construction industry through automation and intelligent technologies, reducing construction costs, enhancing precision, and promoting sustainable development. The beaver never stops building. Neither do we.”
What Drives Us
Innovation
Every product starts with a real problem on a real site. We build until the machine does it better.
Safety
Empower construction safety through technology — for every worker's safe return.
Efficiency
Delivering measurable improvements in productivity, precision, and cost-effectiveness on every project.