HAMAI INDUSTRIES LTD.
6497・Standard Market・Machinery
Business
Hamai Co., Ltd. was founded in 1927 and is listed on the Standard Market of the Tokyo Stock Exchange as a valve-specialty manufacturer. The company is composed of two core businesses: the Valve Business (approximately 95% of net sales), which mainly manufactures and sells Valves for LPG Cylinders, valves for high-pressure gas cylinders, equipment valves, and Piping Valves; and the Real Estate Leasing Business, which leases retail buildings, nursing home facilities, and similar properties. The company also expands overseas through its consolidated subsidiary Hamai Korea Co., Ltd. (South Korea), and utilizes Hokuriku Hamai Co., Ltd. as a regional agent. Major customers include LP gas operators, manufacturers of high-pressure gas and semiconductor manufacturing equipment, and fire extinguishing equipment manufacturers, and the company has a cumulative production record of over 200 million LP valves.
Business Model
In the core Valve Business, the company manufactures LPG, high-pressure gas, and piping valves primarily through a make-to-stock production system, generating revenue via its distributor network and direct sales. Stable demand driven by regulatory requirements, such as re-inspection needs, underpins the earnings base. The Real Estate Leasing Business boasts extremely high profitability, with net sales of ¥577 million and operating income of ¥384 million (a profit margin of 66.5%), functioning as a stable earnings source that offsets fluctuations in the Valve Business's earnings. Funding is primarily sourced from internal funds, maintaining sound financial health.
Company Strengths
Cumulative production of LP valves reached 200 million units (as of 2005), backed by over 70 years of manufacturing experience since the company began producing valves for propane gas cylinders in 1953. Net sales in the Valves for LPG Cylinders segment for FY2025 were ¥5,504 million (up 6.2% year on year), and the segment continues to achieve stable growth as the company's core business.
The Real Estate Leasing Business achieved extremely high earnings efficiency in FY2025, with net sales of ¥577 million against operating income of ¥384 million, representing an operating margin of 66.5%. The company owns a retail building on surplus land at its Fuchu plant (leasing began in 1997) and a fee-based nursing home with care services on the site of its former head office (leasing began in 2017), which function as a stable earnings source that complements fluctuations in earnings from the Valve Business.
The company continues to jointly develop valves for hydrogen gas cylinders for fuel cell vehicles with a domestic automaker, and is also working on developing ultra-high-pressure valves and safety valves. Hydrogen filling nozzles have already begun operating at some stations. In FY2025, the company invested ¥276 million in research and development, building a technological foundation for the next-generation energy field.
ENVALITH's Perspective
Performance Trend
Over the past five fiscal years, revenue expanded steadily from ¥9,458 million in FY2021 to ¥12,715 million in FY2025, and operating profit also maintained an improving trend, rising from ¥511 million in FY2021 to ¥1,223 million in FY2025. Net income fell sharply to ¥397 million in FY2024 due to antitrust-related expenses, but recovered to ¥969 million in FY2025. In Q1 of FY2026 (ending December 2026), revenue reached ¥3,619 million (up 6.2% year-on-year), securing revenue growth; however, a rise in the cost ratio driven by soaring raw material and fuel prices squeezed profits, resulting in a decline in operating profit to ¥311 million (down 9.2% year-on-year) and quarterly net income attributable to owners of the parent of ¥198 million (down 2.3% year-on-year). Externally, the weak yen and elevated resource prices continue to persist, and the pace at which price pass-through takes hold will be key to profit recovery. The full-year forecast projects revenue of ¥13,100 million (up 3.0% year-on-year) and operating profit of ¥1,250 million (up 2.2% year-on-year), anticipating both higher revenue and higher profit.
Growth Strategy
Three-pronged growth strategy comprising strengthening profitability in the existing Valve Business, investment in hydrogen and clean energy, and expansion into Asian overseas markets
The company continues to implement product price increases in response to soaring material costs, aiming to absorb the rise in cost ratio. Re-inspection demand is stable demand based on the statutory cycle, and the company is promoting order maintenance and expansion by leveraging its existing customer base. In Q1 of FY2026 (ending December 2026), sales of Valves for LPG Cylinders increased 5.0% year-on-year, securing revenue growth.
A strategy to capture the recovery in demand for valves used in semiconductor manufacturing equipment through the company's Korean base. In Q1 of FY2026 (ending December 2026), demand from the semiconductor industry was confirmed to be on a recovery trend, contributing to increased revenue in the High-Pressure Gas Valves & Gas-Related Equipment segment. In the Piping Valves segment, the delayed recovery in domestic demand for semiconductor manufacturing equipment continues, and determining the timing of recovery remains a challenge.
As a response to the medium- to long-term risk of shrinking LPG demand, the company is promoting technology development for clean energy-related products such as hydrogen valves. At present, there is no specific disclosure of sales contribution or investment amounts in the financial results report, and this remains positioned as part of the medium-term strategy. Clarifying the timing of monetization is required as part of accountability to investors.
Last updated: July 17, 2026