Notice Regarding Start of Operation of Aso Plant Aso Kumamoto Site
Key facts
- Notice Regarding Start of Operation of Aso Plant Aso Kumamoto Site
- Tokyo Ohka Kogyo Co., Ltd. announced that its newly established Aso Plant Aso Kumamoto Site in Kikuchi City, Kumamoto Prefecture has commenced operations. It aims to improve quality and stable supply of high-purity chemicals in response to increased semiconductor demand.
- Source: PR Times
- Date: June 8, 2026
Direct answer
Tokyo Ohka Kogyo Co., Ltd. announced that its newly established Aso Plant Aso Kumamoto Site in Kikuchi City, Kumamoto Prefecture has commenced operations. It aims to improve quality and stable supply of high-purity chemicals in response to increased semiconductor demand.
- Citation
- Notice Regarding Start of Operation of Aso Plant Aso Kumamoto Site (June 8, 2026), PR Times
- Source
- PR Times
- Date
- June 8, 2026
Tokyo Ohka Kogyo Co., Ltd. announced that its newly established Aso Plant Aso Kumamoto Site in Kikuchi City, Kumamoto Prefecture has commenced operations. It aims to improve quality and stable supply of high-purity chemicals in response to increased semiconductor demand.
📋 Article Processing Timeline
- 📰 Published: June 8, 2026 at 23:12
- 🔍 Collected: June 8, 2026 at 14:21
- 🤖 AI Analyzed: June 12, 2026 at 15:25 (97h 4m after Collected)
Tokyo Ohka Kogyo Co., Ltd. (Head Office: Nakahara-ku, Kawasaki City; President: Noriaki Taneichi; hereinafter 'the Company') hereby announces that the newly established 'Aso Plant Aso Kumamoto Site' in Kikuchi City, Kumamoto Prefecture has commenced operations.
The Company opened the Aso Plant (Aso City, Kumamoto Prefecture) in 1984 and has been manufacturing high-purity chemicals. In recent years, with the expansion of semiconductor production in the Kyushu area, the Company established the Aso Kumamoto Site to meet increased demand and further strengthen the stable supply system, completing construction in 2024.
The site is equipped with facilities enabling strict quality control, contributing to improved quality and stable supply of high-purity chemicals. With the start of operations, the Company aims to expand supply capacity through synergy with the Aso Plant and further enhance user support in western Japan.
The Company group, in order to achieve the desired state set forth in the long-term vision 'tok Vision 2030', plans capital investment totaling 76 billion yen over three years in the 'tok Medium-Term Plan 2027' started in fiscal 2025, the largest scale in its history. Going forward, to respond to medium- to long-term growth in the semiconductor market, the Company will proceed with capacity expansion and stable supply system development both domestically and internationally, and focus on quickly bringing each investment project online, leading to the acquisition of new cash generation capabilities.
Record
1. Overview of Aso Plant Aso Kumamoto Site
Name: Aso Plant Aso Kumamoto Site
Location: 987-2, Niitooki, Asoshikawabe, Kikuchi City, Kumamoto Prefecture
Purpose: Supply and quality control of high-purity chemicals
Site Area: 128,000 square meters
Investment Amount: Approximately 13 billion yen
Aso Plant Aso Kumamoto Site
2. Future Outlook
The impact of this matter on the Company's results is already reflected in the consolidated earnings forecast announced on February 9, 2026.
Related Releases
Notice regarding completion of new plant at Aso Plant Aso Kumamoto Site | Tokyo Ohka Kogyo Co., Ltd.
Notice regarding establishment of new Aso Plant Aso Kumamoto Site in Kikuchi City, Kumamoto Prefecture | Tokyo Ohka Kogyo Co., Ltd.
The Company opened the Aso Plant (Aso City, Kumamoto Prefecture) in 1984 and has been manufacturing high-purity chemicals. In recent years, with the expansion of semiconductor production in the Kyushu area, the Company established the Aso Kumamoto Site to meet increased demand and further strengthen the stable supply system, completing construction in 2024.
The site is equipped with facilities enabling strict quality control, contributing to improved quality and stable supply of high-purity chemicals. With the start of operations, the Company aims to expand supply capacity through synergy with the Aso Plant and further enhance user support in western Japan.
The Company group, in order to achieve the desired state set forth in the long-term vision 'tok Vision 2030', plans capital investment totaling 76 billion yen over three years in the 'tok Medium-Term Plan 2027' started in fiscal 2025, the largest scale in its history. Going forward, to respond to medium- to long-term growth in the semiconductor market, the Company will proceed with capacity expansion and stable supply system development both domestically and internationally, and focus on quickly bringing each investment project online, leading to the acquisition of new cash generation capabilities.
Record
1. Overview of Aso Plant Aso Kumamoto Site
Name: Aso Plant Aso Kumamoto Site
Location: 987-2, Niitooki, Asoshikawabe, Kikuchi City, Kumamoto Prefecture
Purpose: Supply and quality control of high-purity chemicals
Site Area: 128,000 square meters
Investment Amount: Approximately 13 billion yen
Aso Plant Aso Kumamoto Site
2. Future Outlook
The impact of this matter on the Company's results is already reflected in the consolidated earnings forecast announced on February 9, 2026.
Related Releases
Notice regarding completion of new plant at Aso Plant Aso Kumamoto Site | Tokyo Ohka Kogyo Co., Ltd.
Notice regarding establishment of new Aso Plant Aso Kumamoto Site in Kikuchi City, Kumamoto Prefecture | Tokyo Ohka Kogyo Co., Ltd.
FAQ
What is the purpose of the Aso Kumamoto Site?
To meet increased demand from semiconductor production expansion and strengthen stable supply of high-purity chemicals.
Where is it located?
987-2, Niitooki, Asoshikawabe, Kikuchi City, Kumamoto Prefecture.
How much was invested?
Approximately 13 billion yen.
When did operations start?
The site was completed in 2024 and operations commenced with this announcement.
What is Tokyo Ohka's medium-term plan?
Capital investment totaling 76 billion yen over three years from fiscal 2025.