TOSTEM THAI COMPANY LIMITED

Name

TOSTEM THAI COMPANY LIMITED

Legal name

บริษัท แอล เอช ที เอเซีย เซลส์ แอนด์ มาร์เก็ตติ้ง จำกัด (LHT Asia Sales and Marketing Company Limited)

Website

https://tostemthailand.com

Company type

Private

Founded year

1923

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Aluminum Windows and Doors

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Exterior Doors (IMADAIAA)

Keywords

• Aluminum windows
• Entrance doors
• Residential building materials
• Aluminum frames
• Housing solutions

Headquarters

HQ city

Pathum Thani

HQ country

Thailand

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure, Technology or R&D

Revenue model

1. Aluminum Windows and Doors: Sale of aluminum sash windows, doors, and related building material products through direct sales and dealer network distribution to residential and commercial customers
2. Entrance Doors (GIESTA): Premium entrance door solutions including GIESTA and GIESTA Familock (smart lock enabled) product lines for residential applications
3. Exterior Products (Fence & Gate): Fence and gate systems for exterior applications, extending product portfolio beyond interior windows and doors
4. Interior Products: Interior window and door solutions including INTERIOR IN16 series for interior partitioning applications

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels10 records

Core offering

TOSTEM Thai Company Limited (operating as LHT Asia Sales and Marketing Company Limited) manufactures, distributes, and sells Japanese-quality aluminum windows, entrance doors, and exterior housing products in Thailand. The product portfolio includes the GRANTS, ATIS, ATIS PLUS, WE PLUS, WE 70, WE 40, and INTERIOR IN16 window/door series, GIESTA entrance doors with optional Familock smart lock, Fence & Gate exterior systems, and PremiAL R100 100% recycled aluminum frames. Products are sold through a certified dealer network of 24 dealers, direct B2B sales to developers and architects, and digital channels including Virtual Showroom and Online Quotation.

Product overview

TOSTEM Thailand is a Japanese-quality aluminium windows and doors company operating under LHT Asia Sales and Marketing Company Limited (LASM). The company offers a comprehensive housing solution portfolio organized into three main product categories: (1) Windows & Doors (GRANTS, ATIS, ATIS PLUS, WE PLUS, WE 70, WE 40, and INTERIOR IN16 series), (2) Entrance Doors (GIESTA with Familock smart lock), and (3) Exterior Products (Fence & Gate). The product line includes the PremiAL R100 sub-brand featuring 100% recycled aluminium capable of reducing CO2 by up to 97%, and incorporates AIRFLOW System technology for ventilation. The company also provides digital tools including Virtual ShowRoom, Online Quotation, and Giesta Simulation. TOSTEM's offerings are distinguished by Japan-quality manufacturing standards, with products designed for the Thai residential market at various price points from standard (WE series) to premium (GRANTS).

Differentiator

Problem solved

Functional benefit

Brands

• GRANTS: Premium window and door series designed to redefine boundaries of living space.
• ATIS
• ATIS PLUS
• WE PLUS
• WE 70
• WE 40
• GIESTA
• INTERIOR IN16
• PremiAL R100

Products and services

• GRANTS Windows and Doors Premium window and door series designed to redefine the boundaries of living space, featuring Japanese-quality aluminum frames with Streamline Design aesthetics. Targeted at premium residential projects in Thailand.
• ATIS Windows and Doors Aluminum window and door product line offering durability and modern design for residential applications. Mid-tier offering within the TOSTEM portfolio.
• ATIS PLUS Windows and Doors Enhanced version of the ATIS aluminum window and door series with improved performance features for residential use.
• WE PLUS Windows and Doors Aluminum window and door series with enhanced features for residential applications.
• WE 70 AIRFLOW Door and Window Series Airflow door and window series with 70mm frame depth incorporating AIRFLOW System ventilation technology for residential applications.
• WE 40 Windows and Doors Aluminum window and door series with 40mm frame depth designed for compact residential applications.
• INTERIOR IN16 Interior Series Interior window and door series designed for interior partitioning applications under the 'Connecting Spaces of Living' concept. Launched in 2025 at Architect Expo 2025.
• GIESTA Entrance Doors Premium aluminum entrance door brand for residential main entrances, available with optional GIESTA Familock smart lock system for keyless entry and enhanced security.
• Fence & Gate Exterior Products Exterior fence and gate products for perimeter security and aesthetic enhancement of residential properties, extending the product portfolio beyond interior windows and doors.
• PremiAL R100 Recycled Aluminum Frames 100% recycled aluminum window and door frames manufactured at the TOSTEM Thai factory, capable of reducing CO2 emissions by up to 97%.

Quantifiable outcome

• 97% CO2 reduction achievable with PremiAL R100 recycled aluminum windows
• +1 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Nine partnerships are on record, tiered major, minor, flagship and core.

• สมาคมอสังหาริมทรัพย์ไทย (Thai Real Estate Association)majorGTM or Marketing Partner · 23 July 2026Strategic partnership with Thai Real Estate Association, with Dr. Woraphot Kiatpipat (Vice President and Secretary General) participating in TOSTEM Certified Dealer Award Ceremony 2026 as guest speaker.
• LIXIL Showroom JapanminorGTM or Marketing Partner · 23 May 2025LIXIL operated showroom in Japan featured in SHOP & WIN campaign winners trip, showcasing Japanese craftsmanship and product quality standards.
• งานสถาปนิก (Architect Expo)majorGTM or Marketing Partner · 16 May 2025Major annual architectural exhibition where TOSTEM launched Interior Series新产品 and showcased 'Connecting Spaces of Living' concept at Architect Expo 2025 (68th edition).
• สภาสถาปนิก (The Association of Siamese Architects)majorGTM or Marketing Partner · 22 April 2025Partnership with The Association of Siamese Architects for ACT TALK 2025 Series 02: DESIGN FOR DISASTERS event, focusing on design considerations for disaster resilience in housing.
• SC AssetflagshipStrategic or Co-development Partner · 27 March 2025Leading Thai real estate developer partnering with TOSTEM for Net Zero housing initiatives. Collaboration featured at SCero Together event focusing on sustainable real estate development and carbon reduction in residential projects.
• LIXIL CorporationcoreOthersLIXIL Corporation is the parent company of TOSTEM, a global leader in housing and building materials. TOSTEM Thailand operations (LHT Asia Sales and Marketing) are part of the LIXIL group, benefiting from shared technology, quality standards, and brand heritage spanning over 100 years.
• TOSTEM AsiacoreStrategic or Co-development PartnerRegional headquarters coordinating TOSTEM brand operations across Asian markets including Thailand, Philippines, Indonesia, India, and Vietnam. Provides regional brand alignment and market intelligence sharing.
• Chiang Mai University - Faculty of ArchitectureminorGTM or Marketing PartnerTOSTEM Knowledge Sharing program at Chiang Mai University delivering educational content on aluminum window specifications and materials to architecture students.
• Walailak University - Faculty of ArchitectureminorGTM or Marketing PartnerTOSTEM Knowledge Sharing program at Walailak University in Nakhon Si Thammarat engaging architecture students with product knowledge.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Aluprof: European aluminum window, door, and facade systems manufacturer with international distribution. Comparable as a premium architectural aluminum systems provider in the residential and commercial building materials segment.
• YKK AP: Japanese manufacturer of aluminum building products, windows, and doors with operations across Asia including Thailand. Directly comparable as a premium Japanese-origin competitor in the Thai aluminum windows/doors market targeting similar developer and architect segments.
• Deceuninck: Belgian window and door systems manufacturer (uPVC and aluminum) with significant Asian operations. Comparable as a premium window systems supplier competing in the same Thai residential developer channel, though primarily uPVC rather than aluminum.
• Reynaers Aluminium: Belgian premium aluminum window, door, and facade system supplier with global presence. Comparable as a premium architectural aluminum systems provider serving residential and commercial projects with similar product breadth and quality positioning.
• Aluk Group: Aluminum window, door, and curtain walling systems brand with global presence. Comparable as a premium aluminum systems manufacturer serving residential and commercial construction projects with similar specification-driven sales model.
• Schüco: German premium aluminum and uPVC window, door, and facade systems manufacturer with Asian operations. Comparable premium systems competitor targeting high-end residential and commercial projects with similar technology-driven differentiation.

Broad incumbents

• LIXIL Corporation: Parent company of TOSTEM and global building materials/housing solutions conglomerate. Comparable as the broader corporate parent with overlapping product categories (windows, doors, housing equipment) and shared technology platform, though with much wider portfolio and geographic footprint.
• Kawneer (Arconic): North American aluminum architectural products manufacturer offering windows, doors, curtain walls, and storefronts. Comparable as a premium architectural aluminum products incumbent serving commercial and high-end residential construction, with broader product portfolio than TOSTEM.

Others

• SCG (Siam Cement Group): Thai industrial conglomerate with building materials, construction solutions, and chemicals operations. Comparable as a major Thai building materials ecosystem player that TOSTEM partners with and competes against in supplying Thai residential and commercial construction projects.

Regional players

• Boonthavorn Group: Major Thai building materials retailer and construction supply chain operator. Comparable as a Thai home improvement and building materials channel that sells competing window/door brands to homeowners and contractors, representing both a potential channel partner and competitor in the Thai retail market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tostem-thai-company-limited

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TOSTEM THAI COMPANY LIMITED