Yoshine- Office Building: Deep Foundation Progress, Rebar Supply Chain & BIM-Driven Prefabrication in Action

Since its official groundbreaking in December 2025, the high-rise office building on Plot 041 has reached a significant 

engineering milestone: the main deep foundation excavation has been completed, and large-scale underground 

parking garage and foundation construction have begun.

2. Strategic Sourcing: Leveraging Global Supply Chains & High-Quality Chinese Rebar

For a project of this scale, securing a stable and cost-effective supply of steel is paramount. We have optimized our raw

material procurement by choosing to import from China—the world’s leader in steel production capacity and technical 

standards.

l  Why China?

By partnering with Tier-1 Chinese mills, we ensure a consistent supply of deformed rebar that meets and exceeds 

international standards (such as ASTM A615 and BS 4449).

l  Quality Assurance:

Every batch of imported steel undergoes rigorous third-party testing to verify essential deformed rebar properties, 

including high yield strength, superior ductility, and optimal bond strength with concrete. This global sourcing strategy 

allows us to mitigate local market price volatility while guaranteeing that the foundation of our office building is built 

with the highest-grade materials available.

3. The Power of Rebar Off-site Prefabrication

To overcome the spatial constraints of a commercial construction site, we have moved away from traditional on-site manual 

Processing. Instead, we utilize rebar off-site prefabrication.

Once the steel arrives from our supply, it is sent to a specialized facility for rebar processing. Here, advanced machinery 

performs precision cutting, bending, and assembly into modular cages and mats.

Why use off-site steel bar processing?

1.       Precision: Fabrication accuracy is maintained within ±1mm.

2.       Efficiency: Moving the bulk of the work off-site has reduced our on-site labor requirements by 40% and accelerated 

the installation phase by 30%, ensuring the project stays ahead of the 2026 delivery schedule.

What is rebar off-site prefabrication, and how does it differ from on-site processing?

A: Rebar off-site prefabrication involves moving the rebar processing (cutting, bending, and welding) from the crowded 

construction site to a controlled factory environment.

Unlike on-site processing, which is prone to weather delays, manual errors, and high material waste, off-site prefabrication 

utilizes automated robotics to create modular components. These "ready-to-install" modules are then delivered to the site, 

significantly reducing congestion and improving safety.

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