ENVALITH
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CORONA CORPORATION

5909・Standard Market・Metal Products

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株式会社コロナ logo
CORONA CORPORATION5909

Business

CORONA Corporation, founded in 1937, is a manufacturer specializing in housing-related equipment headquartered in Sanjo City, Niigata Prefecture. Its main business areas are three fields: Heating Equipment (Oil Fan Heaters, Oil Stoves, etc.), Air Conditioning & Home Appliances (Room Air Conditioners, Dehumidifiers, Humidifiers, etc.), and Housing Equipment (EcoCute, Oil Water Heaters, Heat Pump Water Heating Systems, etc.), and it handles everything from manufacturing to sales, installation, and after-sales service in an integrated manner. While domestic sales form its main axis, it also exports oil heating equipment to the Middle East and Europe. With a group structure comprising 12 subsidiaries and 1 affiliated company, it covers a wide range of housing-related business areas spanning manufacturing, logistics, service, and renovation. Its main customers are domestic general households and housing equipment installation contractors.

Business Model

The Group manufactures products at its head office and subsidiaries (Arai CORONA Co., Ltd., Imamachi CORONA Co., Ltd., Tochio CORONA Co., Ltd., etc.), and sells them domestically and overseas through sales subsidiaries and distributors such as Daiwa Kogyo Co., Ltd. and Kintatsu Shoji Co., Ltd. After-Sales Service is handled by CORONA Service Co., Ltd. and others, while Installation & Renovation is handled by Sunlife Engineering Co., Ltd. and CORONA Living Service Co., Ltd. The company adopts a make-to-forecast production system, and secures earnings through the structure of expanding its product lineup and passing on cost increases through pricing.

Company Strengths

In 2001, the company launched EcoCute, the world's first natural refrigerant (CO2) heat pump water heater, and won the Minister of Economy, Trade and Industry Award at the 2002 Energy Conservation Grand Prize. It has since received the Energy Conservation Grand Prize multiple times, and its accumulated head-start in heat pump technology development serves as a differentiating factor versus competitors. Sales of Housing Equipment (EcoCute, Oil Water Heaters, Electric Water Heaters, etc.) reached ¥42,367 million in FY2026 (ending March 2026), the highest level in five years.

At the end of the consolidated fiscal year, the company had zero outstanding borrowings from financial institutions and maintains a solid financial base with net assets of ¥77,845 million. It adheres to a policy of funding working capital and capital expenditures from its own funds, and in FY2026 (ending March 2026), total capital expenditure of ¥2,032 million (¥1,890 million in tangible fixed assets and ¥141 million in intangible fixed assets) was entirely funded internally.

By holding three fields with different demand cycles—Heating Equipment (Oil Heaters, Heat Pump Heating, etc.), Room Air Conditioners, and EcoCute—the company diversifies the risk of demand fluctuations in any specific product. In FY2026 (ending March 2026), Housing Equipment (EcoCute, Oil Water Heaters, Electric Water Heaters, etc.) accounted for approximately 49.6% of net sales, while Heating Equipment (Oil Heaters, Heat Pump Heating, etc.) accounted for approximately 27.3% and Air Conditioning & Home Appliances (Room Air Conditioners, Humidifiers, Dehumidifiers, etc.) accounted for approximately 16.2%, maintaining diversity in the product mix.

ENVALITH's Perspective

Operating profit for FY2026 (ending March 2026) fell sharply to ¥852 million (down 36.6% year on year), with the operating profit margin declining to 1.0%. The forecast for FY2027 (ending March 2027) anticipates further profit decline, with operating profit of ¥600 million (down 29.6% year on year) and net income of ¥600 million (down 39.5% year on year). Persistently high raw material and procurement costs, along with increased selling, general and administrative expenses (from ¥17,047 million to ¥17,510 million), are squeezing profits, and the rise in expenses amid flat sales is the greatest obstacle to improving profitability.

Housing Equipment (EcoCute, Oil Water Heaters, Electric Water Heaters, etc.) performed well, up 5.7% year on year, buoyed by government subsidies and decarbonization-related demand. However, Heating Equipment (Oil Heaters, Heat Pump Heating, etc.) declined 2.1% year on year due to persistently high temperatures during the peak demand season, while Air Conditioning & Home Appliances (Room Air Conditioners, Humidifiers, Dehumidifiers, etc.) saw a sharp decline of 8.3% year on year due to intensifying competition among manufacturers and an early end to the rainy season. Overall sales grew only 0.1%, revealing a structural vulnerability in which growth is concentrated almost entirely in Housing Equipment. Weak new housing starts are also being recognized as a mid- to long-term ceiling on demand.

Operating cash flow was negative for the second consecutive period (from -¥423 million in FY2025 (ending March 2025) to -¥731 million in FY2026 (ending March 2026)). The main cause was a decrease in accounts payable (¥3,880 million) resulting from shortened payment terms, and cash and cash equivalents at period-end fell 25.0%, from ¥13,234 million to ¥9,930 million. Capital expenditure (¥2,481 million in acquisitions of property, plant and equipment) also continued, keeping free cash flow in negative territory. The dividend payout ratio was high at 82.6% for FY2026 (ending March 2026) and is projected to reach 136.5% in the FY2027 (ending March 2027) forecast, entering a phase where the sustainability of maintaining the dividend is called into question.

Growth Strategy

Restructuring the business portfolio toward heat pump equipment centered on decarbonization and energy-saving demand

In FY2026 (ending March 2026), the company invested ¥2,481 million in tangible fixed asset acquisitions, advancing production capacity expansion and rationalization for heat pump equipment including EcoCute. "CORONA Eco-Heating System 6.0" was newly added to the lineup and launched as a hot water heating system combining comfort and energy efficiency. Utilizing the government subsidy program (GX-oriented housing), sales of Housing Equipment (EcoCute, Oil Water Heaters, Electric Water Heaters, etc.) achieved a 5.7% year-on-year increase.

The company is promoting product development and sales under the "OUTFIELD" brand to expand the enjoyment of daily life. In FY2026 (ending March 2026), it launched the "Night Black Edition" of heating equipment, seeking differentiation through design and lifestyle appeal. The company aims to capture new customer segments in response to the medium- to long-term shift in demand structure within the existing oil heater market.

The company is advancing product development in preparation for the upcoming increase in energy-saving standards effective April 2027. Efforts include improving basic performance and energy efficiency, developing products that pursue cleanliness and ease of maintenance, leveraging IoT technology, and expanding a distinctive lineup including window-type units that require no installation work. In FY2026 (ending March 2026), Air Conditioning & Home Appliances (Room Air Conditioners, Humidifiers, Dehumidifiers, etc.) struggled with an 8.3% year-on-year decline, making the recovery of competitiveness an urgent priority.

Under the basic strategy of "Rebuilding the Management Foundation" in the 10th Medium-Term Management Plan, the company is advancing initiatives for DX talent development and improving operational efficiency through data utilization. With selling, general and administrative expenses trending upward at ¥17,510 million (up 2.7% year on year), improving the cost structure through operational rationalization is key to restoring profitability.

Last updated: July 19, 2026