News Releases

YKK AP Acquires Thailand’s Largest Curtain Wall Company

Establishing a Stable Global Supply System and Accelerating the Expansion of Its Curtain Wall Business in the Asia Region

Corporate Information

YKK AP Inc. (Head Office: Chiyoda-ku, Tokyo; President: Akira Uozu) announced the acquisition of Thailand-based curtain wall company, YHS International Ltd. (“YHSI”), and its related manufacturing company, Siam Metal Co., Ltd. (“SM”). With the acquisition, YKK AP will have its fourth worldwide curtain wall manufacturing base, accelerating its efforts to establish a stable global supply system and further expand its curtain wall business in the Asia region.

With the manufacturing facilities covering a site area of 26,089 square meters and a production capacity of approximately 180,000 square meters of curtain wall per year, YHSI and SM have been the industry leaders in the curtain wall market in Thailand. YHSI and SM design, manufacture, and distribute their curtain wall systems, and they also provide installation and maintenance services. In addition to contract work in Thailand, they have a track record of supplying their curtain wall systems to a number of large-scale projects in Japan. Their robust technological capabilities and proven experiences align with YKK AP’s core value - insist on quality in everything, leading to this acquisition as partners for growth.

YKK AP established the Global Curtain Wall Business Division in April 2023 with the aim of contributing to quality urban spaces through world’s architectural projects with its products. In order to attain this objective, YKK AP is engaged in integrated business operations that encompass manufacturing, distribution, and technology, as well as research and analysis of new markets to foster sustainable growth. YKK AP believes that Thailand presents high prospects as a market within the rapidly growing Asia region.

The integration of YHSI and SM with the YKK AP Group will provide YKK AP with its fourth curtain wall manufacturing base to supply its curtain wall systems, following the Namerikawa Plant in Japan, the Suzhou Factory owned by YKK AP (Suzhou) Co., Ltd., China, and the Lakeshore Factory owned by Erie Architectural Products Inc., Canada. This strategic acquisition underlines YKK AP’s commitment to a stable global supply system and robust global supply chain. YKK AP welcomes YHSI as its pillar for establishing and expanding its curtain wall business in Thailand and the Asia region.

YHSI Factory

   Curtain wall assembly line

■ YHSI and SM Company Profiles

Company Name YHS International Ltd. (“YHSI”) Siam Metal Co., Ltd. (“SM”)
Headquarters Bangkok, Thailand Samutsakhon, Thailand
Founded 1991 1988
Person Responsible Sarinee Ang Photjanee Assavabenya
Number of Employees Approximately 200
(As of October 2023)
Approximately 200
(As of October 2023)
Net Sales Approximately 4.1 billion yen
(CY2022)
Approximately 300 million yen 
(CY2022)
Areas of Business Design, distribution, installation, 
maintenance of curtain walls
Manufacture of curtain walls
(Manufacture YHSI’s products)

Download the full news release in PDF format.

* Please do not transcribe or convert for a different use the YKK AP website without permission.
* The news releases posted here were current at the time of their publication.