ENVALITH
株式会社大谷工業 logo

OTANI KOGYO CO.,LTD.

5939Standard MarketMetal Products

株式会社大谷工業 logo
OTANI KOGYO CO.,LTD.5939

Business

Otani Kogyo Co., Ltd. is an industrial metal fabrication manufacturer founded in 1946, operating two segments: the Electric Power & Communications Division (Overhead Line Fittings, Steel Towers & Steel Structures) and the Building Materials Division (Construction Studs, Seismic Isolation Base Plate). Its main customers are electric power companies, telecommunications companies, and construction companies, with electric power infrastructure operators such as Hokuriku Electric Power Transmission & Distribution being key business partners. In addition to the Toyama and Kanuma plants, the company established the new Toyama Kurehe Plant in May 2025, advancing the rationalization and efficiency of its production system. The company is listed on the Standard Market of the Tokyo Stock Exchange. Of net sales of ¥7,526 million (FY2026, ending March 2026), the Electric Power & Communications Division accounts for approximately 64%.

Business Model

A build-to-order business model that manufactures and sells Overhead Line Fittings and Steel Towers & Steel Structures based on orders from electric power companies and telecommunications carriers, while manufacturing, selling, and installing Construction Studs and Seismic Isolation Base Plates for construction companies. The company maintains an integrated production system that supplies products through in-house processing—including hot-dip galvanizing and laser processing—following the procurement of steel and other raw materials. Stable order intake linked to the capital investment plans of major clients forms the core of its earnings, and the company seeks to deepen customer relationships through VE/VA proposal-based sales.

Company Strengths

Since its founding, the company has continuously supplied Overhead Line Fittings and Steel Towers & Steel Structures to electric power companies and telecommunications companies for over 70 years, and has built continuous business relationships with major electric power companies including Hokuriku Electric Power Transmission and Distribution. In the fiscal year under review, sales in the Electric Power & Communications Division were ¥4,848 million, accounting for approximately 64% of total company sales, and the order backlog remained stable at ¥1,086 million (up 4.5% year on year), maintaining a stable order base.

The Toyama Plant and Kanuma Plant are equipped with hot-dip galvanizing equipment (JIS-certified) and laser processing machines, enabling an in-house integrated manufacturing system capable of handling everything from large steel materials to small parts. In May 2025, the company newly established the Toyama Kureha Plant and transferred part of its manufacturing processes there, advancing production rationalization and efficiency. The company has also obtained ISO9001 and ISO14001 certifications, indicating an established quality control system.

The equity ratio at the end of FY2026 (ending March 2026) remained at a high level of 57.8% (up 3.9 percentage points year on year), with net assets of ¥4,406 million against limited interest-bearing debt. The company maintains a policy of covering working capital and capital expenditures primarily with internal funds, and has preserved its financial soundness even while carrying out the large-scale investment of constructing the Toyama Kureha Plant. Although ROA declined to 3.9%, the stability of its financial base indicates low credit risk for investors.

ENVALITH's Perspective

In FY2026 (ending March 2026), depreciation expense rose ¥106 million year on year to ¥233 million, and the operating margin declined from 6.0% to 5.4%. The cost increase associated with construction investment at the Toyama Kureha Plant (net property, plant and equipment surged from ¥1,472 million in the previous period to ¥2,248 million) is creating a structure that is constraining near-term profit. The FY2027 (ending March 2027) forecast operating profit of ¥385 million (down 5.0% year on year) appears to be a conservative plan that factors in this rise in fixed costs, and improvement in the break-even point through higher plant utilization will be key to a medium-term profit recovery.

In FY2026 (ending March 2026), operating cash flow deteriorated sharply to negative ¥261 million from ¥783 million in the previous period. The main cause was a ¥637 million decrease in trade payables (a significant decline in electronically recorded obligations and accounts payable), reflecting the large impact of changes in working capital. On a pre-tax profit basis, the company secured ¥368 million, so this does not represent an impairment of the underlying earning power of the business, but cash and cash equivalents declined to ¥1,222 million (from ¥1,910 million in the previous period). Normalization of working capital in FY2027 (ending March 2027) will be a prerequisite for restoring cash-generating capacity.

The annual dividend for FY2026 (ending March 2026) is ¥30 (unchanged from the previous period), with a payout ratio of only 7.9% and a dividend-to-net-assets ratio of just 0.6%. Against net assets per share of ¥5,656, a dividend of ¥30 is extremely low, and while retained earnings continue to accumulate, returns to shareholders remain limited. The FY2027 (ending March 2027) forecast dividend is also unchanged at ¥30 (projected payout ratio of 9.0%). As an external factor, delays in construction schedules in the construction industry are slowing the recovery of the Building Materials Division's performance, and a cautious stance may continue even if there is capacity for a dividend increase.

Growth Strategy

Capturing electric power infrastructure renewal demand and promoting production rationalization and efficiency through the Toyama Kureha Plant

The company has completed the transfer of part of its manufacturing process to the Toyama Kureha Plant, built as a new production base. Through further process transfers and improved utilization rates, the company aims to reduce manufacturing costs over the medium to long term. In FY2026 (ending March 2026), increased depreciation expenses are pressuring profits, but earnings recovery through improved production efficiency is expected.

The Electric Power & Communications Division is steadily capturing demand arising from electric power companies' planned capital investment under the first regulatory period of the revenue cap system (2023–2027), increased electric power demand accompanying the new construction and expansion of data centers and semiconductor plants, and the response to expanding renewable energy adoption. Highest priority is also being given to responding to reconstruction demand from the Noto Peninsula earthquake and the Okunoto heavy rainfall disaster.

Planned demand for large-scale redevelopment projects, logistics warehouses, and data centers, mainly in the greater Tokyo metropolitan area, remains at a high level, but construction schedule delays due to rising construction costs and labor shortages have become the norm. The company expects that full-scale construction is still some way off, and identifying the timing of recovery remains a challenge. In FY2026 (ending March 2026), net sales were only ¥2,677 million and segment profit was only ¥146 million.

Last updated: July 19, 2026