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OSAKA SODA CO., LTD.

4046Prime MarketChemicals

株式会社大阪ソーダ logo
OSAKA SODA CO., LTD.4046

Basic Chemicals

Osaka Soda's core business manufacturing and selling Chlor-Alkali Products, Epichlorohydrin, and related products

PeriodCurrentPreviousChange
Net sales (full year, FY2026 ending March 2026)¥41,741 million¥37,636 million
Segment profit (full year, FY2026 ending March 2026)¥6,194 million¥2,275 million
Segment assets (full year, FY2026 ending March 2026)¥44,368 million¥41,013 million
Depreciation and amortization (full year, FY2026 ending March 2026)¥1,929 million¥1,776 million
Capital expenditure (increase in tangible and intangible fixed assets, full year, FY2026 ending March 2026)¥3,690 million¥1,886 million

Business Details

Manufactures and sells the Chlor-Alkali Products group including caustic soda, hydrochloric acid, liquefied chlorine, sodium hypochlorite, Epichlorohydrin, and Allyl Chloride. The Mizushima Plant serves as the main production base, with domestic and overseas chemical and materials manufacturers as key customers. In FY2026 (ending March 2026), this segment accounted for approximately 41.8% of consolidated group sales of ¥99,961 million, making it the largest segment and positioning it as a stable source of cash generation.

Recent Overview

Sales revenue and profit increased significantly due to the resolution of supply issues and improvement in overseas market conditions

In FY2026 (ending March 2026), Basic Chemicals net sales were ¥41,741 million (up 10.9% year on year), and segment profit was ¥6,194 million (a substantial increase from ¥2,275 million in the prior year). For Chlor-Alkali Products, the supply issues caused by equipment malfunctions at the Mizushima Plant were resolved, and sales volume recovered. For Epichlorohydrin, in addition to the resolution of the supply issue, an improvement in overseas market conditions contributed to the increase. Capital expenditure rose sharply to ¥3,690 million from ¥1,886 million in the prior year, reflecting accelerated equipment renewal investment aimed at improving production efficiency.

Key Products

product
Chlor-Alkali Products

A group of Chlor-Alkali Products manufactured through the electrolysis process, with the Mizushima Plant as the main production base. In FY2026 (ending March 2026), sales volume increased as the supply issues caused by equipment malfunctions at the Mizushima Plant were resolved, resulting in an increase in sales revenue compared to the previous fiscal year.

product
Epichlorohydrin

Has wide-ranging applications as a key raw material for epoxy resins. In FY2026 (ending March 2026), sales increased due to higher sales volume from the resolution of supply issues, combined with an improvement in overseas market conditions.

product
Allyl Chloride

Used as a manufacturing intermediate for Epichlorohydrin. One of the key items constituting the product lineup of the Basic Chemicals segment.

Growth Drivers

  • Recovery and stabilization of sales volume following the resolution of supply issues caused by equipment malfunctions at the Mizushima Plant
  • Improvement in sales unit prices and volume for Epichlorohydrin driven by better overseas market conditions
  • Strengthening of the earnings base through equipment renewal investment and cost reductions aimed at improving production efficiency
  • Improvement in gross profit margin through the promotion of cost reduction activities
  • Deepening of the electrolysis and AC/EP chains and promotion of resilience-building and cost-reduction investments for sustainable growth under the new medium-term management plan "Transform Our Future 2030"

Risks

  • Risk of declining sales unit prices due to softening of the Chlor-Alkali market
  • Risk of deteriorating overseas market conditions for Epichlorohydrin (e.g., due to China's economic slowdown)
  • Risk of supply disruptions due to equipment troubles at the Mizushima Plant and other facilities
  • Risk of cost increases due to soaring raw material and fuel prices
  • Deterioration of the export environment due to US tariff measures and geopolitical risks

Last updated: June 25, 2026