ENVALITH
第一工業製薬株式会社 logo

DKS Co.Ltd.

4461Prime MarketChemicals

第一工業製薬株式会社 logo
DKS Co.Ltd.4461

Surfactants

Core group segment manufacturing and selling foundational materials such as surfactants

PeriodCurrentPreviousChange
Net Sales¥15,182 million¥15,743 million
Operating Profit¥162 million¥302 million
Operating Margin1.1%1.9%
Segment Assets¥13,297 million¥14,764 million
Depreciation¥503 million¥510 million

Business Details

Manufactures and sells Nonionic, Anionic, Cationic, and Amphoteric Surfactants, Flame Retardants, amide-based lubricants, polyether polyols, and urethane prepolymers. Supplies a wide range of applications including soaps and detergents, rubber and plastics, and civil engineering and construction. From FY2026 (ending March 2026), it is positioned as one of four reorganized segments, replacing the former six-segment structure that included the

Recent Overview

Sales and profit both declined due to weak performance in Flame Retardants and Tunnel Collapse Prevention Agent

In the Core Materials segment for FY2026 (ending March 2026), Flame Retardants for rubber and plastic product processing applications trended weakly, and the Tunnel Collapse Prevention Agent for civil engineering and construction applications declined significantly. Net sales were ¥15,182 million (down 3.6% year on year), and operating profit was ¥162 million (down 46.4% year on year) due to an increase in operating expenses, primarily selling expenses, making this the segment with the largest profitability decline within the group.

Key Products

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Nonionic Surfactants

A foundational product supplied for a wide range of applications both domestically and internationally, including soaps and detergents, machinery and metals, paints and colorants, and textiles.

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Anionic Surfactants

Supplied domestically and internationally as household and industrial cleaning agents and emulsifiers.

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Cationic Surfactants

Used for fiber treatment and as antistatic agents.

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Amphoteric Surfactants

Supplied for personal care applications such as cosmetics and shampoos, as well as industrial applications.

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Flame Retardants

Supplied for rubber and plastic product processing applications, but trended weakly in FY2026 (ending March 2026).

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Tunnel Collapse Prevention Agent

Supplied for civil engineering and construction applications, but declined significantly in FY2026 (ending March 2026).

Growth Drivers

  • Stable domestic and international demand for general-purpose surfactants such as Nonionic and Anionic Surfactants
  • Expansion into high-value-added products utilizing interfacial technology under the medium-term management plan "SMART 2030"
  • Expectations for a recovery in overseas demand for soap and detergent and textile applications

Risks

  • Risk of continued weak demand for core products such as Flame Retardants and Tunnel Collapse Prevention Agent
  • Deteriorating profitability due to an increase in operating expenses, primarily selling expenses
  • Intensifying international price competition amid expanding supply from Chinese and other Asian manufacturers
  • Risk of rising costs due to persistently high raw material and energy prices
  • Risk that resource allocation within the group concentrates on high-growth segments such as Electronics & Information and Environment & Energy, relatively lowering investment priority for this segment

Last updated: June 19, 2026