OEM Assembly & Integrated Manufacturing Services

Scale OEM production with A-SPARK Manufacturing’s integrated assembly and manufacturing support, built for complex components, production-ready assemblies, and global supply chains. From design analysis and sourcing to quality control, assembly, packaging, and logistics, our engineering-driven approach helps OEMs reduce risk, control costs, and move from prototype to repeatable production with confidence.

OEM assembly and manufacturing production line

Our OEM Assembly & Integrated Manufacturing Services

Integrated OEM manufacturing, assembly, quality, sourcing, and logistics support for complex production programs.

Manufacturing Assembly

Complete assembly support including fastening, bonding, gasketing, welding, sub-assembly, final builds, custom packaging, leak testing, vibration testing, functional testing, and final quality control.

Product Development

End-to-end product support from concept development and engineering design through prototype planning and production readiness, helping OEMs refine ideas before scaling.

Vertical Integration

Engineering-led DFM review, material review, first article sample support, process improvement, root cause analysis, and 8D corrective action reporting for reliable manufacturing.

Quality Management

Documented quality systems with dimensional reports, ballooned drawings, control plans, PFMEA, capability studies, certifications, traceability, CMM inspection, and optical inspection.

CNC Machining

Precision CNC machining supported by advanced equipment, proper fixtures, high-quality cutting tools, and skilled engineers for tight-tolerance metal component production.

Logistics Optimization

Tariff engineering, import compliance, freight strategy, customs audit preparation, FTA utilization, supplier audits, factory inspections, and logistics troubleshooting for global programs.

Engineers reviewing OEM assembly process

Our OEM Manufacturing Process

Engineering Review and Project Scoping

We begin with drawings, specifications, target volumes, material requirements, and application needs. Our engineering team reviews manufacturability, sourcing options, assembly requirements, risk factors, and documentation expectations before recommending the most efficient production approach.

Design Validation and Prototyping

Sourcing and Production Planning

Integrated Assembly and Testing

Quality Release and Logistics

Built For OEMs

Production Success

See how integrated manufacturing support helps OEMs improve speed, consistency, and supply chain confidence.

"A-SPARK's Value on-site Engineering and Vertical Integration services with 8D corrective actions proved invaluable. Their quick design analysis and prototyping cycles accelerated our product launch significantly."

Amanda Zhang
The A-SPARK Difference

Why Choose A-SPARK Manufacturing?

A-SPARK Manufacturing combines engineering insight, production capability, and supply chain execution.

Proven Experience

Backed by decades of LEGE Corp manufacturing experience in Taiwan and Vietnam operations.

Faster Launch

Quick design analysis and short prototyping cycles help OEMs accelerate production readiness.

Quality Systems

ISO 9001:2015 and IATF 16949 compliance support consistent, documented manufacturing quality.

Supply Stability

Asia-based sourcing, logistics, and compliance knowledge helps reduce global supply chain friction.

Meet The A-SPARK Team

Engineering-focused manufacturing support for global OEM production programs.

A-SPARK Manufacturing builds on the legacy of LEGE Corp, whose experience includes more than 40 years in Taiwan and 20 years of operations in Vietnam. From its base in Bac Ninh Province and manufacturing network across Asia, the company supports OEMs that need precision components, integrated assembly, and dependable supply chain execution. Its culture is grounded in excellence, integrity, customer focus, quality first, and innovation. With local business knowledge in Vietnam, Taiwan, China, India, and broader Asia, A-SPARK helps global customers bridge engineering expectations, production realities, logistics requirements, and compliance needs. The mission is clear: provide reliable, transparent, and efficient production partnerships for businesses scaling with confidence in Asia.

40+ YearsParent company experience in Taiwan manufacturing
20 YearsOperations in Vietnam production and assembly
Global ReachServing OEM programs across Asia and North America

Frequently Asked Questions

What types of OEM assembly projects can A-SPARK Manufacturing support?

A-SPARK Manufacturing supports OEMs with integrated manufacturing and assembly for industrial, electronics, consumer, automotive, EV, oil and gas, plumbing, lighting, renewable energy, medical device, aerospace, and defense applications. Capabilities include mechanical assemblies, light electronics, precision metal components, molded parts, custom packaging, final QC, and functional testing for production-ready delivery.

Can you support both product development and full production?

How does A-SPARK Manufacturing manage quality control?

What manufacturing processes are available for integrated projects?

Do you handle sourcing, logistics, and import compliance?

How can A-SPARK help reduce time-to-market?

How do you reduce production and supply chain risk?

Which regions and markets does A-SPARK Manufacturing serve?

Have a Manufacturing Question?

Get practical answers for your assembly, sourcing, or production needs.

Certified & Proven

Awards and Recognition

ISO 9001:2015 certification logo

ISO 9001:2015

Quality management system certification

IATF 16949 certification logo

IATF 16949

Automotive quality standard compliance

Manufacturing experience trust badge

20+ Years Experience

Proven die casting and assembly expertise

Start Your OEM Manufacturing Project

Share your drawings, specifications, assembly needs, or supply chain goals, and our team will help outline the right production path.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +8435 468 5699. You can also send us a quick email at sales@a-sparkvn.com.