COSEL CO.,LTD.
6905・Prime Market・Electric Appliances
Business
Cosel Co., Ltd. was founded in 1969 and is headquartered in Toyama City as a specialized manufacturer of DC stabilized power supplies. The company offers four product categories—Unit Power Supplies, On-board Power Supplies, Noise Filters, and PRBX Products—supplying a wide range of industries including semiconductor manufacturing equipment, factory automation (FA) equipment, medical devices, communication equipment, railways, and aviation. The Group consists of 21 subsidiaries including the company itself, and operates a global manufacturing and sales structure across five segments: Japan, North America, Europe, Asia, and China. In April 2024, the company entered into a capital and business alliance with LITE-ON TECHNOLOGY CORPORATION, which became its largest shareholder. The company is listed on the Prime Market of the Tokyo Stock Exchange.
Business Model
The company manufactures at three sites in Japan, Europe, and China, and supplies DC stabilized power supplies through a sales network spanning five regions including North America and Asia. By focusing on highly versatile catalog products, it achieves both development efficiency and inventory control, while realizing premium pricing in markets demanding high reliability, such as semiconductor manufacturing equipment and medical devices. The target consolidated operating margin is 15% or higher, and the company has previously achieved 16.7% (FY2024, ended May 2024).
Company Strengths
The equity ratio at the end of FY2025 (ended May 2025) was 93.1% (86.6% at the end of the previous fiscal year), and cash and cash equivalents stood at ¥26,552 million (up ¥11,158 million from the previous fiscal year-end). The financial base was further strengthened through a third-party allotment of new shares (¥7,940 million) and disposal of treasury stock (¥3,608 million) in connection with the capital and business alliance with LITE-ON. The company maintains a no-debt management policy and aims to fund capital expenditures and R&D with its own funds.
The company operates three manufacturing bases in Japan, Europe (Sweden and Germany), and China, along with a five-region sales network including North America and Asia. In FY2025 (ended May 2025), sales by region were ¥16,523 million in Japan, ¥6,263 million in Europe, ¥2,667 million in Asia, and ¥1,600 million in North America, reflecting a diversified regional balance that avoids excessive dependence on any single region.
Under a quality management system based on ISO9001 (obtained in 1993) and ISO14001 (obtained in 1999), the company supplies products to fields requiring high reliability, such as semiconductor manufacturing equipment, medical devices, railways, and aviation. Through the continuous launch of standard-compliant products, including the UMCS Series, UMPS Series, and UMA Series that comply with medical electrical equipment standards, the company maintains its position in markets with high barriers to entry.
ENVALITH's Perspective
Performance Trend
Revenue peaked at ¥41,437 million in FY2024 (ended May 2024), then declined sharply for two consecutive periods to ¥27,052 million in FY2025 (ended May 2025) (down 34.7% year on year) and ¥25,046 million in FY2026 (ended May 2026) (down 7.4% year on year). Operating profit fell from ¥6,913 million in FY2024 (ended May 2024) to ¥628 million in FY2025 (ended May 2025), and turned into an operating loss of ¥695 million in FY2026 (ended May 2026). Net loss expanded significantly to ¥3,406 million in FY2026 (ended May 2026) from ¥113 million in the prior period, mainly due to a loss on liquidation of an affiliated company of ¥3,644 million associated with the transfer of Powerbox shares. As an external factor, the prolonged adjustment phase in demand for semiconductor manufacturing equipment and factory automation (FA) equipment underlies the sluggish sales, but orders received in FY2026 (ended May 2026) recovered sharply, up 59.8% year on year, and the company forecasts a recovery to revenue of ¥28,875 million and operating profit of ¥1,335 million in FY2027 (ending May 2027).
Growth Strategy
While converting the sharp recovery in orders into revenue, the company is improving its earnings structure through the LITE-ON partnership, expanded new product sales, and restructuring of the European business
Through collaboration with LITE-ON TECHNOLOGY CORPORATION, the company is promoting expanded sales of COSELSYNC. brand products and LITE-ON Products across all bases in Japan, North America, Europe, and Asia. By expanding the product lineup, the company strengthens its ability to respond to customer needs, aiming to expand sales through both deepening relationships with existing customers and acquiring new customers.
The PDA Series, MU Series, DCS1400B, UMHA120F, and other products will be launched in FY2026 (ending May 2026). By expanding the product lineup for a wide range of applications including FA control equipment, semiconductor manufacturing equipment, and medical devices, and by strengthening sales proposal activities to key customers, the company aims to accelerate the conversion of its order backlog (¥12,810 million) into sales.
On May 20, 2026, the company entered into a share transfer agreement for Powerbox International AB, and deconsolidation is expected to be completed during the next fiscal year. The Europe segment recorded a loss of ¥723 million in FY2026 (ending May 2026), and the separation of Powerbox is expected to improve the profitability structure of the European business. The company will continue its European sales structure centered on COSEL EUROPE GmbH.
Under the 11th Medium-Term Management Plan, the DOE floor level has been raised from 3.5% to 4.5%, and the annual dividend for FY2027 (ending May 2027) has been set at ¥60 (an increase of ¥5 year on year). Even during the earnings recovery phase, the company will implement stable and continuous shareholder returns, aiming to improve capital efficiency and secure investor confidence.
Last updated: July 17, 2026

