ENVALITH
東洋合成工業株式会社 logo

Toyo Gosei Co.,Ltd.

4970Standard MarketChemicals

東洋合成工業株式会社 logo
Toyo Gosei Co.,Ltd.4970

Photosensitive Materials Business

Core business manufacturing and selling photosensitive materials for semiconductors and displays

PeriodCurrentPreviousChange
Net Sales¥26,417 million¥23,873 million
Operating Income¥1,051 million¥1,979 million
Segment Assets¥41,441 million¥42,219 million
Depreciation and Amortization¥3,966 million¥2,705 million
Capital Expenditures (Increase in Tangible and Intangible Fixed Assets)¥1,274 million¥7,044 million
Operating Margin (Segment)3.98%8.29%

Business Details

This business produces and sells Photosensitive Materials for Advanced Semiconductors (Photoresist Materials), Photosensitive Materials for LCD Displays, Electric Double-Layer Materials, and other products. Major customers include Shin-Etsu Chemical Co., Ltd. (net sales of ¥6,889 million in FY2026 (ending March 2026)). Against a backdrop of expanding demand related to generative AI, sales of materials for advanced semiconductors have increased, and the company is actively pursuing capacity expansion investments under its medium-term management plan, "Beyond500."

Recent Overview

Net sales increased, but operating income fell 46.9% year on year due to a sharp rise in fixed costs

In the Photosensitive Materials Business for FY2026 (ending March 2026), net sales increased to ¥26,417 million (up ¥2,544 million, or +10.7%, year on year), driven by higher sales of advanced photoresist materials for AI applications. On the other hand, depreciation and amortization surged to ¥3,966 million (up ¥1,261 million year on year) due to the start of operations of large-scale production facilities and a production information system, and fixed costs such as personnel expenses also increased significantly, resulting in a sharp decline in operating income to ¥1,051 million (down ¥927 million, or -46.9%, year on year). Increased sales of advanced materials in the second half of the fiscal year helped absorb part of the fixed cost burden. Sales of materials for general-purpose semiconductors declined slightly.

Key Products

product
Photosensitive Materials for Advanced Semiconductors (Photoresist Materials)

Sales increased year on year, driven by strong demand for AI-related semiconductor devices. The large-scale new production facility and the photosensitive material development and analysis building, both completed in 2024, have strengthened manufacturing technology capabilities and the analytical framework, establishing a stable supply system capable of meeting cutting-edge quality requirements. The expansion of the fourth photosensitive material plant is further increasing supply capacity for products in the advanced field.

product
Photosensitive Materials for LCD Displays

Despite concerns over a shortage in semiconductor memory supply, panel production for smartphones and TVs was maintained at a certain level, and this business also performed steadily during the fiscal year under review.

product
Electric Double-Layer Materials

Produced and sold as one of the product lineups within the Photosensitive Materials Business.

Growth Drivers

  • Increased sales of materials for advanced photoresists driven by expanding demand for generative AI-related semiconductor devices (demand expanded further toward the second half)
  • Strengthened manufacturing technology capabilities and analytical framework, along with establishment of a stable supply system, through the photosensitive material development and analysis building and large-scale new production facility completed in 2024
  • Expanded supply capacity for advanced field products through the expansion of the fourth photosensitive material plant and preparations for construction of a new photosensitive material plant
  • Mid- to long-term market expansion driven by the elevation of semiconductors to a national strategic priority (economic security) in various countries and increasing data center demand
  • Continued stable demand for display photosensitive materials (maintenance of panel production for smartphones and TVs at a certain level)
  • Groundwork for long-term supply capacity expansion through future acquisition of business sites

Risks

  • Pressure on profits from a sharp increase in depreciation and fixed costs associated with large-scale capital investment (depreciation and amortization in FY2026 (ending March 2026) was ¥3,966 million, up ¥1,261 million year on year)
  • Risk of delays in improving the utilization rate of new production facilities and obtaining product qualifications
  • Delayed recovery in demand for materials used in general-purpose and standard semiconductors (automotive, industrial equipment, etc.)
  • Deterioration of the business environment due to geopolitical risks, including US tariff measures, and sharp exchange rate fluctuations
  • Uncertainty in sales volume due to fluctuations in semiconductor market demand (customers' inventory adjustments and changes in capital expenditure plans)
  • Rising manufacturing costs due to surging raw material prices and logistics costs

Last updated: June 23, 2026