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15+ Years of Excellence

Your Engineering Compliance Office in China

Specializing in AISC/EN1090 compliant steel structures and modular buildings. We manage your TCO and mitigate supply chain risks with 15 years of engineering expertise.

On Time

Reliable lead times secured by modular manufacturing and critical path scheduling (CPM).

ISO Certified

Tier-1 supply chain verified by ISO 9001 and site-specific auditing by our engineering team.

Quality Materials

We use trusted brands and durable & materials suited for Global conditions.

Why Traditional Sourcing Fails in Structural Projects

The Risks of Traditional Trading Companies

The BoltSprout Engineering Advantage

What We Do

Engineered Solutions for Your Specific Vertical

We don’t sell single items.We deliver integrated systems, designed to work together and ready for manufacturing and export.

Industrial Steel Structures

AISC and EN1090 compliant fabrication for warehouses, heavy-duty workshops, and commercial facilities. Full traceability on every weld.

Modular & Pre-fab Buildings

Rapid-deployment site offices, worker camps, and specialized units. Engineered for strict local MEP codes and thermal regulations.

Outdoor Living & Storage

CE-certified heavy-duty carports, garden offices, and premium sheds. Built to withstand extreme wind and snow loads.

What do we deliver?

✔️ BOM ready for execution ✔️ QC evidence & packaging plan ✔️ Installation & interface specs

About us

Why Work With Us

Engineering Communication

We speak the language of engineering—specs, BOMs, connection details, tolerance control, and code compliance.

End-to-End Delivery

From BOM → Supplier → QC → Packaging → Loading documents.

Quality & Evidence Chain

First sample confirmation, in-process QC, pre-shipment evidence reports.

Documentation Assurance

We provide drawings, installation guides, packaging specs, and compliance notes.

our Process

How the Process Works

Technical RFQ Audit

We review your specs, identify potential standard mismatches (e.g., ASTM vs. GB), and estimate the accurate Total Cost of Ownership (TCO).

Supply Chain Matching

Bypassing middlemen. We match your project strictly with factories holding valid AISC, EN1090, or ISO certifications.

In-Process QC Tracking

From Material Test Certificates (MTC) to final weld inspections. We monitor the production floor and keep you updated weekly.

Logistics & Compliance Delivery

We prepare all necessary export documents, structural compliance dossiers, and handle CBAM/Tariff paperwork for smooth customs clearance.

Reliable Steel & Modular Building Supply — Backed by Engineering

We don’t just supply products. We deliver engineered systems, verified suppliers, QC checkpoints, and export documentation — so your project moves forward with confidence.