About Us

TOSTEM THAI is a subsidiary of LIXIL Corporation, a Japan-based company and a global leader in manufacturing housing, building, and construction materials. Established on April 10, 1987, we are a manufacturer of aluminum products specializing in the "Aluminum Extrusion" process.

Our manufacturing facility is located in the Navanakorn Industrial Estate, Pathum Thani province, covering an expansive area of over 539,000 square meters (approximately 400 rai). With a workforce of more than 5,000 employees, our factory operates 24 hours a day. Driven by the high potential of our advanced machinery and skilled workforce, we achieve a production capacity of up to 7,500 tons per month.

Elevating OEM Standards
Why TOSTEM THAI is the Strategic Partner for Your Global Projects.
In the parts manufacturing industry (OEM), the key is not just about getting the production "done," but about achieving "perfection" according to the set specifications.
As a leader in aluminum products, TOSTEM does not just offer parts manufacturing; we offer "Japanese Quality" as the core heart that makes our products internationally recognized—especially in the B2B sector where high precision is required.

Why choose TOSTEM THAI as your OEM partner?

Precision
Manufacturing

We maintain the tightest tolerances

Every millimeter is accounted for, ensuring that your final assembly

is flawless.

Innovation

in Surface Treatment

Our exclusive surface treatments, including our signature

TEXGUARD technology, UV resistance, and corrosion protection that outperforms standard finishes.

Scalability &

Global Quality

With our state-of-the-art facility in Thailand, we provide the perfect balance of massive production capacity and stringent quality control, meeting both local and international.