SONOCOM CO.,LTD.
7902・Standard Market・Other Products
Business
SONOCOM CO.,LTD. was founded in 1962 and is listed on the Standard Market of the Tokyo Stock Exchange as a specialist manufacturer of screen printing masks for electronic components. Its main products are Screen Masks, Metal Masks, and Photo Masks, which are used in the production of electronic components, surface mount technology (SMT) for printed circuit boards, and the production of liquid crystal devices, among other applications. Its major customers are electronic component manufacturers including Taiyo Yuden, and the company is capturing demand for electronic components used in AI servers/data centers as well as information and communication-related applications such as smartphones. Manufacturing is carried out at two sites, the Matsudo Plant in Chiba Prefecture and the Tamagawa Plant in Kanagawa Prefecture, and the company also handles the purchase and sale of Screen Printing Equipment & Materials (Merchandise Sales). In July 2026, the company plans to make Kyushu Sonocom Co., Ltd., which will succeed Maxell's EF2 business, a subsidiary, aiming to expand into the precision processing field.
Business Model
The company earns revenue through two pillars: Product Sales (order-based manufacturing and sale of items such as screen masks) and Merchandise Sales (procurement and sale of screen printing equipment & materials). In FY2026 (ending March 2026), Product Sales revenue was ¥2,314 million (approximately 85% of sales composition), and Merchandise Sales revenue was ¥398 million (approximately 15%). Leveraging a field-focused technology development system that responds to customers' needs for high precision and short delivery times as its strength, the company has built ongoing business relationships with electronic components manufacturers. It maintains debt-free management, funding capital expenditures and working capital entirely with internal funds.
Company Strengths
At the end of FY2026 (ending March 2026), cash and cash equivalents stood at ¥4,143 million, the equity ratio was 92.1%, and interest-bearing debt was zero. The company maintains an extremely sound financial structure with total assets of ¥10,144 million against net assets of ¥9,344 million, giving it the financial flexibility to fund future investments, including making Kyushu Sonocom a subsidiary, entirely with its own funds.
Centered on the Head Office Technology Department and the Matsudo Plant Manufacturing Technology Section (13 members), the company has built a field-oriented development structure, investing ¥136 million in R&D expenses (5.9% of Product Sales). Within this fiscal year alone, it achieved mass production of multiple new products, including high-strength, low-elongation plating film and the Rib Mesh Combi Plate and ribbed metal mask UB-5V.
Since its founding in 1962, the company has specialized in screen printing platemaking for over 60 years, accumulating technology and know-how. Transactions with Taiyo Yuden expanded 36.6% year on year to ¥452,948 thousand (16.7% of sales composition), and ongoing business relationships with major electronic component manufacturers form a stable foundation for business performance.
ENVALITH's Perspective
Performance Trend
Revenue bottomed at ¥2,134 million in FY2024, then expanded for two consecutive periods to ¥2,423 million in FY2025 and ¥2,712 million in FY2026. Operating profit staged a sharp recovery, rising from ¥137 million in FY2024 to ¥202 million in FY2025 and ¥332 million in FY2026, with the operating margin improving significantly from 6.4% in FY2024 to 8.3% in FY2025 and 12.2% in FY2026 (*FY2026 figure is 332/2,712). The main external driver was steady demand for electronic components used in AI servers/data centers and in smartphones and other information/communication-related applications. On the other hand, demand for EV and other automotive-related applications remained at a low level. Product sales rose 12.7% year on year to ¥2,315 million, while merchandise sales increased 7.7% year on year to ¥398 million. Selling, general and administrative expenses declined slightly year on year (from ¥548 million to ¥541 million), so the increase in revenue flowed directly through to profit. Operating cash flow improved sharply, from ¥-79 million in the prior period to ¥524 million. For FY2027 (ending March 2027), the company forecasts a sharp slowdown, with operating profit expected to fall 42.8% to ¥190 million.
Growth Strategy
Dual-axis strategy of expanding into precision processing through the subsidiarization of the EF2 business and developing high value-added products
Continued investment of ¥136 million in R&D expenses (5.0% of net sales) to respond to increasingly sophisticated market needs. Aggressive renewal of machinery and equipment (¥257 million acquired during the current period) is strengthening production efficiency and the stable supply system for high-precision products. Achieved an operating margin of 16.9% (as stated in the financial results summary) in FY2026 (ended March 2026).
Acquired all shares of a newly established company succeeding to the EF2 (Electro-Fine-Forming) business of Maxell, Ltd., making it a subsidiary as Kyushu SONOCOM CO., LTD. By incorporating precision micro-processing technology and the associated customer base, the company aims to create synergies with its existing screen printing mask business, expand its business domain, and enhance corporate value over the medium to long term.
Purchase and sale (Merchandise Sales) of Screen Printing Equipment & Materials expanded steadily to ¥398 million in FY2026 (ended March 2026) (up 7.7% year on year). As the second pillar of revenue after Product Sales, this is contributing to deepening customer relationships through comprehensive solution offerings and to boosting overall net sales.
Last updated: July 19, 2026