Industrial Inspection &
Engineering Solutions in Thailand
Your Trusted Partner for Industrial Inspection, Engineering Supply & Technical Solutions
Independent Third Party Inspection, QA/QC, Welding Inspection, NDT, Vendor Inspection, Expediting, Engineering Procurement and Technical Sourcing for international clients, EPC contractors, project owners, manufacturers and suppliers.
Verify Quality. Reduce Risk. Protect Your Project.
MIIS provides independent technical verification throughout the industrial supply chain — helping clients control quality, verify suppliers, identify risks and make confident decisions before equipment and materials are released or shipped.
Industrial Inspection Services
Professional inspection and quality surveillance from material verification through fabrication, testing, documentation and final release.
Pressure Vessel Inspection
Independent inspection throughout pressure vessel fabrication and manufacturing, from material verification to final release.
- Material & MTC verification
- Plate identification & traceability
- Cutting, forming & rolling
- Fit-up & dimensional inspection
- Welding inspection
- WPS / PQR / WPQ review
- NDT coordination & verification
- PWHT verification
- Hydrostatic / pneumatic testing
- Final visual & dimensional inspection
- Nameplate verification
- MDR / final dossier review
Piping Fabrication & Inspection
Independent inspection of piping fabrication, spool production and associated components to verify quality, traceability and compliance.
- Pipe, flange, fitting & valve inspection
- Material & MTC verification
- Heat number traceability
- Fit-up & dimensional inspection
- Welding inspection
- WPS / PQR / WPQ verification
- RT / UT / MT / PT
- PWHT verification
- Hydrostatic / pneumatic testing
- Flushing & cleanliness
- Painting & coating
- Final documentation & release
Steel Structure Fabrication Inspection
Independent quality surveillance for structural steel fabrication, welding, dimensional control, coating and final release.
- Material identification & traceability
- MTC verification
- Cutting & preparation
- Fit-up inspection
- Welding inspection
- Welder qualification verification
- NDT
- Dimensional inspection
- Alignment & straightness
- Bolted connections
- Surface preparation & coating
- Final inspection & documentation
HRSG Fabrication & Inspection
Technical inspection and quality surveillance for Heat Recovery Steam Generator fabrication and associated pressure parts.
- Material verification
- Tubes, headers & pressure parts
- Welding & fabrication
- WPS / PQR / WPQ review
- Fit-up & dimensional inspection
- NDT
- PWHT
- Pressure testing
- Tube & header inspection
- Alignment verification
- Traceability
- Final inspection & release
Fired Heater Fabrication & Inspection
Independent inspection and quality surveillance for fired heater fabrication and associated components.
- Material verification
- Tubes & headers
- Shell & structural components
- Welding inspection
- WPS / PQR / WPQ verification
- NDT
- Dimensional inspection
- Fit-up & alignment
- Pressure testing
- Surface preparation & coating
- Documentation review
- Final inspection & release
Pipe Fittings Manufacturer Inspection
Independent inspection of pipe fittings manufacturers in Thailand for international buyers, EPC contractors, procurement companies and project owners.
- Elbows, tees & reducers
- Caps, couplings & unions
- Flanges & forged fittings
- Butt-weld & threaded fittings
- Carbon, stainless & alloy steel
- Material & MTC verification
- Dimensional & visual inspection
- Wall thickness verification
- Heat treatment records
- Hardness / PMI when required
- NDT & pressure testing
- Packing, marking & quantity
Your Supplier. Our Inspection. Your Confidence.
MIIS can represent the client’s interests directly at the manufacturer’s facility, providing independent technical verification before products are accepted and shipped.
VERIFY BEFORE YOU BUY. INSPECT BEFORE YOU SHIP.
Verify. Control. Document. Release.
MIIS works as an independent technical partner between client, EPC contractor, supplier, manufacturer and fabricator.
Confirm materials, documents, specifications and supplier capability.
Monitor critical manufacturing and inspection activities.
Provide clear technical evidence and inspection reporting.
Support final acceptance and shipment decisions.
Search. Connect. Source with Confidence.
MIIS connects international clients with Thai manufacturers, suppliers, fabricators and engineering service providers — supported by independent technical verification.
What You Can Source Through MIIS
STEEL & METALS
Plates | Pipes | Tubes | Structural Steel | Stainless Steel | Carbon Steel | Alloy Steel
PIPING & VALVES
Pipe | Fittings | Flanges | Valves | Gaskets | Specialty Piping Components
WELDING & FABRICATION
Pressure Vessels | Tanks | Piping Spools | Steel Structures | Skids | Modules
MECHANICAL EQUIPMENT
Heat Exchangers | HRSG | Fired Heaters | Pumps | Compressors | Industrial Equipment
ELECTRICAL & INSTRUMENTATION
Electrical Equipment | Control Panels | Instrumentation | Industrial Components
INSPECTION & NDT
Third Party Inspection | Welding Inspection | NDT | QA/QC | Expediting | FAT
Why Clients Choose MIIS
01 — INDEPENDENT
Objective technical inspection focused on client requirements and approved project specifications.
02 — TECHNICAL EXPERIENCE
Practical knowledge in welding, fabrication, QA/QC, NDT, pressure equipment, piping and structural steel.
03 — THAILAND PRESENCE
Local access to Thai manufacturers, suppliers, fabricators and engineering companies.
04 — INTERNATIONAL STANDARDS
Inspection based on applicable codes, standards, drawings and project requirements.
05 — FAST RESPONSE
Flexible support for urgent inspection assignments, supplier visits and project requirements.
06 — CLEAR REPORTING
Professional inspection reports providing clear technical evidence for client decision-making.
07 — ONE TECHNICAL PARTNER
Inspection, QA/QC, NDT, expediting, supplier verification and engineering sourcing.
08 — CLIENT FOCUSED
Practical technical support designed to protect quality, schedule, investment and reputation.
Technical Support Across Major Industries
Quality. Compliance. Confidence.
At MIIS, inspection is more than a checklist. It is about protecting your equipment, project schedule, investment and reputation through reliable technical information and independent verification.
Ready to Work with MIIS?
Whether you require a single inspection assignment, continuous project surveillance, supplier verification, expediting support or engineering sourcing, MIIS is ready to support your project.