Toyo Gosei Co.,Ltd.
4970・Standard Market・Chemicals
Business
Toyo Gosei Co., Ltd., founded in 1954, is a specialty chemicals manufacturer comprising two segments: the Photosensitive Materials Business, which centers on the manufacture and sale of photosensitive materials for photoresist applications (PAC, PAG, etc.), and the Chemical Products Business, which handles the manufacture and sale of High-Purity Solvents and Fragrance Materials (Intermediates) as well as the operation of Tank Terminal (Liquid Chemical Storage & Logistics) facilities. Its major customers include semiconductor and FPD manufacturers and photoresist manufacturers, led by Shin-Etsu Chemical Co., Ltd., with sales to Shin-Etsu Chemical reaching ¥6,889 million (16.4% of total sales) in FY2026 (ending March 2026). The company's main sites are the Chiba Plant, Awaji Plant, and Ichikawa Takahama Oil Depot, and it maintains an integrated supply chain covering everything from R&D to manufacturing and logistics. The company is listed on the Standard Market of the Tokyo Stock Exchange.
Business Model
In the Photosensitive Materials Business, the company engages in joint development with customers from the R&D stage, manufacturing and selling ultra-high-purity products such as EUV-compatible resist materials to generate high-value-added earnings. In the Chemical Products Business, in addition to manufacturing and selling High-Purity Solvents and Fragrance Materials (Intermediates), the company secures stable, stock-type revenue through storage and logistics services at its Tank Terminal (Liquid Chemical Storage & Logistics) (Takahama Oil Depot). Through collaboration between the two businesses, the company builds an integrated supply chain spanning raw material procurement, product supply, and logistics, meeting customers' needs for stable procurement.
Company Strengths
The company continues R&D for EUV resist materials in the chemically amplified resist materials field, and has built a collaborative structure that involves technical alignment with customers from the R&D stage. In 2024, a photosensitive materials development and analysis building and large-scale new production facilities were completed, strengthening manufacturing technology and analytical capabilities. R&D expenses of ¥1,795 million were invested in FY2026 (ending March 2026), and the high-purity synthesis and purification technology accumulated over many years constitutes a unique competitive advantage that is difficult for competitors to imitate in the short term.
The Photosensitive Materials Business (net sales of ¥26,417 million) and the Chemical Products Business (net sales of ¥15,538 million) work closely together, completing an integrated supply chain in-house that spans from the manufacture and purification of High-Purity Solvents to the storage and logistics of liquid chemicals (Takahama Oil Storage Depot). The Tank Terminal (Liquid Chemical Storage & Logistics) maintains a high tank contract utilization rate due to increasing demand for storage of imported goods, forming a structure in which stable logistics earnings complement the volatility risk of the photosensitive materials business.
The company has steadily executed capital investments in line with its medium-term management plan "Beyond500," including the completion of the No. 4 photosensitive materials plant in 2020, the development and analysis building and the second phase construction of the No. 4 photosensitive materials plant in 2024, and the second indoor filling facility at the Awaji Plant in March 2025. Total capital expenditure in FY2026 (ending March 2026) amounted to ¥4,336 million, and preparations for the construction of a new photosensitive materials plant as well as the acquisition of future business sites have also been completed, laying the groundwork for expanding supply capacity in the next phase.
ENVALITH's Perspective
Performance Trend
Revenue bottomed out at ¥31,956 million in FY2024 (ended March 2024) and has since recovered for two consecutive periods to ¥41,956 million. On the profit side, however, depreciation expenses (¥5,084 million) associated with the start-up of large-scale facilities and production information systems completed in 2024, together with workforce expansion, pushed up fixed costs substantially from the beginning of the fiscal year, causing the operating profit margin to decline to 8.7% (from 10.6% in the previous period). Net income was ¥2,692 million, the second-lowest level after FY2024 (ended March 2024)'s ¥2,396 million. Among external factors, expanding demand for AI-related semiconductors drove sales in the second half, while U.S. tariff measures weighed on sales of Fragrance Materials (Intermediates)-related products. For FY2027 (ending March 2027), the company expects a substantial recovery in operating profit to ¥5,000 million (up 36.3% year on year), factoring in growing demand related to advanced semiconductors and a review of selling prices.
Growth Strategy
Under the medium-term plan "Beyond500," the company aims to exceed ¥50.0 billion in net sales through capacity expansion and technological innovation in advanced semiconductor materials
In addition to the large-scale new production facility and photosensitive materials development and analysis building completed in 2024, the company is proceeding with the expansion of the 4th photosensitive materials plant and preparations for the construction of a new photosensitive materials plant. Land for future business use has also been acquired, aiming to strengthen medium- to long-term supply capacity in response to growing demand from AI and data centers.
In addition to improving shipping capacity and product quality through the utilization of the second indoor filling station at the Awaji Plant, the company has begun construction of a new tank yard and tank truck filling station. Business land for future supply capacity expansion has also been acquired, in order to respond to growing demand for High-Purity Solvents for advanced logic and memory applications.
By strengthening the development and analysis system utilizing the photosensitive materials development and analysis building, the company is promoting the development of essential technologies required for next-generation products. It continues to work on the research and development of new materials responding to the miniaturization and higher integration of semiconductors, manufacturing technology development, and the advancement of quality control and productivity improvement.
In response to rising raw fuel and logistics costs, the company is implementing and considering sales price revisions through discussions with customers. This has been incorporated to a certain extent into the earnings forecast for FY2027 (ending March 2027), and progress on contract terms and the timing of reflection will be an important variable for margin recovery.
Last updated: July 19, 2026