ENVALITH
三光合成株式会社 logo

SANKO GOSEI LTD.

7888Prime MarketChemicals

三光合成株式会社 logo
SANKO GOSEI LTD.7888

Japan

Core domestic segment for plastic molded products and molds; the group's largest source of profit contribution

PeriodCurrentPreviousChange
Sales (external customers)¥31,817 million¥30,210 million
Segment profit¥4,520 million¥3,851 million
Segment profit margin14.2%12.7%
Segment assets¥29,704 million¥30,391 million
Depreciation and amortization¥1,663 million¥1,537 million
Increase in property, plant and equipment and intangible assets¥2,140 million¥2,146 million

Business Details

This segment handles the domestic operations of the Sanko Gosei group. Its main products are Vehicle Interior/Exterior Parts (Molded Products), with the segment also manufacturing and selling Parts for Information & Communication Equipment (Molded Products), Parts for Home Appliances and Others (Molded Products), and Molds for Plastic Molding. It has built an integrated production system covering product design, mold manufacturing, molding, painting, assembly, and the production of labor-saving equipment, with major customers being domestic automakers and others. In FY2026 (ending May 2026), sales to external customers were ¥31,817 million, accounting for approximately 32% of the group total (¥97,979 million).

Recent Overview

Higher sales of vehicle interior/exterior parts drove both sales and profit growth year on year, with margin also improving

In the Japan segment for FY2026 (ending May 2026), although mold sales declined, higher sales of vehicle interior/exterior parts led to sales of ¥31,817 million (up 5.3% year on year) and segment profit of ¥4,520 million (up 17.4% year on year). The segment profit margin improved by 1.5 percentage points to 14.2% from 12.7% in the prior year. Segment assets decreased by ¥687 million from the end of the prior year to ¥29,704 million. In addition, a newly appointed executive officer in charge of the India mold market is scheduled to take office effective August 27, 2026, suggesting an expansion into the Indian market.

Key Products

product
Plastic Molded Products for Vehicle Interior/Exterior

The main product of the Japan segment. Manufactures and sells plastic molded products used in vehicle interiors and exteriors. Has built an integrated production system covering molding, painting, and assembly, with domestic automakers as major customers. In FY2026 (ending May 2026), higher sales of vehicle interior/exterior parts were the primary driver of the segment's revenue growth.

product
Plastic Molded Products for Information & Communication Equipment

Plastic molded products used in information and communication equipment such as smartphones and PCs. By business segment across the group as a whole, sales in the information and communication equipment division were ¥6,093 million (down 6.7% year on year), showing a declining trend.

product
Plastic Molded Products for Home Appliances and Others

Plastic molded products used in home appliances and other products. By business segment across the group as a whole, sales in the home appliances and other division were ¥5,068 million (down 17.6% year on year), a significant decline.

product
Molds for Plastic Molding

Design, manufacture, and sale of molds used in the production of plastic molded products. In the Japan segment for FY2026 (ending May 2026), mold sales declined, but the segment as a whole achieved revenue growth due to higher sales of vehicle interior/exterior parts.

Growth Drivers

  • Continuation of the revenue growth trend by capturing demand for vehicle interior/exterior parts from domestic automakers
  • Expansion of orders for higher value-added products and reinforcement of the production system
  • Profitability improvement through continued cost reduction activities (margin improved to 14.2%)
  • Global sales expansion of the mold business (new executive officer appointed in charge of the India mold market)
  • Development of new products through the capital and business alliance with Futaba Corporation

Risks

  • Risk of fluctuations in automakers' production plans due to the impact of US tariff policy
  • Rising manufacturing costs due to higher raw material and energy prices
  • Growing instability in the international situation and the materialization of geopolitical risks
  • Impact on earnings from sharp fluctuations in exchange rates
  • Declining demand in the information and communication equipment division and the home appliances and other division (down 6.7% and 17.6% year on year, respectively, in FY2026 ending May 2026)

Last updated: August 29, 2025