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南海化学株式会社 logo

Nankai Chemical industry Co., Ltd.

4040Standard MarketChemicals

南海化学株式会社 logo
Nankai Chemical industry Co., Ltd.4040

Chemical Products Business

Nankai Chemical's core segment. Composed of four businesses: Basic Chemicals, Functional Chemicals, Agri, and Environmental Recycling.

PeriodCurrentPreviousChange
Net Sales¥16,979 million (FY2026, ending March 2026)¥16,346 million (FY2025, ended March 2025)
Segment Profit¥2,472 million (FY2026, ending March 2026)¥2,108 million (FY2025, ended March 2025)
Segment Assets¥13,041 million (FY2026, ending March 2026)¥12,437 million (FY2025, ended March 2025)
Depreciation¥786 million (FY2026, ending March 2026)¥721 million (FY2025, ended March 2025)
Increase in Tangible and Intangible Fixed Assets¥795 million (FY2026, ending March 2026)¥750 million (FY2025, ended March 2025)
Share of Consolidated Net SalesApprox. 80.6% (FY2026, ending March 2026)Approx. 78.2% (FY2025, ended March 2025)

Business Details

Operates four businesses: Chlor-Alkali Products (Basic Chemicals) such as caustic soda and sodium hypochlorite; food additives and health foods (Functional Chemicals) such as sodium acetate and glucosamine; the soil fumigant chloropicrin (Agri); and Environmental Recycling (Waste Sulfuric Acid Recycling). Supplies manufacturing industries such as chemicals, steel, paper, and food, mainly in the Kansai region. In FY2026 (ending March 2026), this core business accounted for approximately 80.6% of consolidated net sales. The company focused on profitability-conscious sales, resulting in a substantial 17.3% year-on-year increase in segment profit.

Recent Overview

A profitability-focused sales strategy proved successful, achieving a 3.9% increase in net sales and a 17.3% increase in segment profit.

In the Chemical Products Business for FY2026 (ending March 2026), net sales were ¥16,979 million (up 3.9% year on year) and segment profit was ¥2,472 million (up 17.3% year on year), representing a substantial increase in profit. In Basic Chemicals, the company focused on strengthening its locally-rooted sales network and on sales activities conscious of improving profitability. In Functional Chemicals & Agri, the company continued to promote detailed sales tailored to customer needs and to enhance its supply chain. In Environmental Recycling, the company actively pursued new customer acquisition for waste sulfuric acid recycling. Separately, the consolidated subsidiary NC Kankyo Co., Ltd. was absorbed into the company effective April 1, 2025, and has since been dissolved.

Key Products

product
Basic Chemicals (Chlor-Alkali Products)

Handles Chlor-Alkali Products used for bleaching and disinfection in fields such as water resources, medical, and food, as well as chlorine-based disinfectants used for sanitary management of water purification plants and pool water, and water treatment flocculants used for factory wastewater and sewage. The business is focused on further strengthening its locally-rooted sales network and on sales activities that emphasize improved profitability.

product
Functional Chemicals & Agri

Manufactures and sells food additives such as sodium acetate and health foods such as glucosamine, and undertakes contract manufacturing of cleaning agents for medical devices and additives for resins. In the agrochemical field, manufactures and sells chloropicrin, used as a soil fumigant across a wide range of agricultural applications. The business promotes detailed sales tailored to customer needs while working to build a stable supply system through supply chain enhancement.

service
Environmental Recycling (Waste Sulfuric Acid Recycling)

An environmental recycling business that supplies sulfuric acid regenerated through recycling technology to various manufacturing processes. The company is actively pursuing new customer acquisition for waste sulfuric acid recycling. It is also working to expand the desalination business launched at the Tosa Plant in October 2023. This is a growth business that forms the core of the mid-term management plan's key initiative to "expand the environmental recycling business domain."

Growth Drivers

  • Expansion of the Environmental Recycling business through new customer acquisition for waste sulfuric acid recycling
  • Expansion of the desalination business at the Tosa Plant, launched in October 2023
  • Improved profitability and expanded sales share in Basic Chemicals through strengthening of the regionally-rooted sales network
  • Detailed sales promotion tailored to customer needs and supply chain enhancement in Functional Chemicals & Agri
  • Creation of new recycling businesses leveraging the company's strengths
  • Expansion of overseas sales channels through diversification of export destination countries
  • Expansion of applicable crops through promotion of the tablet-type chloropicrin

Risks

  • Intensifying price competition due to inflows of low-priced chemical products from overseas
  • Cost increase pressure from persistently high raw material prices
  • Impact on export profitability and raw material procurement costs from significant foreign exchange rate fluctuations
  • Decline in sales volume due to reduced demand for certain products
  • Risk of impairment of fixed assets (an impairment loss of ¥9 million was recorded in the current period)
  • Impact on raw material procurement and logistics from geopolitical risks such as the prolonged situation in the Middle East
  • Stabilization of the business structure following the change in scope of consolidation associated with the absorption-type merger of NC Kankyo Co., Ltd. and the completion of liquidation of Fuji Amide Chemical Co., Ltd.

Last updated: June 24, 2026