Eastern Thailand’s Trusted
Galvanizing Partner
— Proven Precision,
Strategic Reach.
About us
Sister's company to Siam Steel Galvanizing, RGC provides industrial
-grade hot-dip galvanizing services for a wide range of steel structures
RGC is a leading hot dip galvanizer based in Rayong, Thailand, serving industries that demand the highest standards in corrosion protection
Years of Expertise
Major Projects Delivered
Tons Processed Monthly
High-volume capacity to
support large-scale industrial
and infrastructure projects.
Workpiece Length
Specialized facilities capable of
handling oversized steel
components with precision.
Our Company
THE LEADING NAME IN
HOT-DIP GALVANIZING
ACROSS THAILAND.
Siam Steel Galvanizing Co., Ltd.
Operating with four zinc bath kettles across two strategic locations—Saraburi and Samutprakarn—SSG delivers high-capacity, high-efficiency galvanizing services tailored for diverse industrial needs.
Our service
We specialize in providing durable hot-dip galvanized solutions.
We offer comprehensive hot-dip galvanizing services to protect steel structures against corrosion. Our facilities are equipped with advanced technology to ensure uniform coating, long-term performance, and cost-effective protection for construction, industrial, and infrastructure applications.
Our Projects
Project Reference
We deliver more than services
why choose us
With three decades of experience and industry-certified processes, we deliver consistent galvanizing quality
at scale — trusted by leading contractors, fabricators, and manufacturers across Thailand and beyond.
Situated in the Eastern Economic Corridor (EEC), RGC is ideal for clients with operations in Rayong, Chonburi, and nearby provinces — with direct access to key logistics routes and ports.
Our skilled team and modern facilities ensure corrosion protection that meets international standards, including ISO 9001 and ASTM compliance.
We serve a wide range of sectors — from transmission lines and telecom to automotive, prefab construction, and industrial equipment.
Using 99.995% special high grade zinc and strict process control, we deliver uniform coating performance and long-lasting durability.
Benefit from the stability, reputation, and nationwide network of one of Thailand’s leading industrial groups.

Galvanizing Bath Size
Technical Specifications
our Galvanizing Baths
LocationSaraburi Plant
Capacity3500 Metric-tons/month
LocationSaraburi Plant
Capacity2500 Metric-tons/month
LocationSamut Prakan Plant
Capacity3500 Metric-tons/month
LocationRayong Plant
Capacity3500 Metric-tons/month
LocationSaraburi Plant
Capacity800 Metric-tons/month
Sustainability
Building a Better World,
One Step at a Time
We take sustainability seriously — minimizing waste, recycling zinc byproducts, and helping clients extend the lifespan of their steel. Our environmentally responsible galvanizing supports a greener, longer-lasting future.

99.995% Special High
Grade Zinc Used
To ensure consistent coating quality, maximum
durability, and superior corrosion resistance. This high-
purity zinc meets international standards and extends
the lifespan of galvanized steel components.
Trusted Galvanizing
Solutions for Over 30Y
Hot-Dip Galvanizing Experts in Thailand
Delivering Quality & Precision in Every Project
99.995% Special High Grade Zinc Used
To ensure consistent coating quality, maximum durability, and superior corrosion resistance. This high-purity zinc meets international standards and extends the lifespan of galvanized steel components.
Trusted Galvanizing Solutions for Over 30Y
Hot-Dip Galvanizing Experts in Thailand Delivering Quality & Precision in Every Project
Testimonial
Trusted by Our Clients

The project was completed promptly, with excellent coordination from the sales team. Delivery was made exactly as scheduled.

Demonstrated strong capability in expediting urgent tasks, with prompt and effective follow-up and problem resolution for clients.

Provides excellent service with accurate and timely delivery of products as scheduled.
