1Summary

Sanki Engineering is a Japanese building-services contractor: it designs and installs the air conditioning, ventilation, plumbing, electrical and control systems that go inside buildings and factories, rather than building the structures themselves. Roughly five-sixths of group revenue comes from that Building Systems business. Three smaller segments — materials-handling equipment, water and waste treatment plant, and a small rental property book — make up the rest. The company celebrated its centenary in the year under review and is one year into a three-year plan running to March 2028.

The year ended 31 March 2026 was a margin year, not a volume year. Revenue rose 0.6% to ¥254,674m, while operating profit rose 27.9% to ¥27,991m and net income attributable to owners rose 37.7% to ¥23,688m. Gross margin, on the company's own disclosure, went from 18.8% to 22.0%. Orders taken grew 11.2% and the order book carried into the new year grew 19.0%, so the revenue line and the order line moved in opposite directions. The first quarter of the current year, reported on 7 August 2026, showed revenue up 7.4% and operating profit up 106.5% against the same quarter a year earlier.

Management attributes the profit improvement to work done at the point of bidding and during construction rather than to a change in market conditions, and states that every profit line was a record. They also flag what did not go well: operating cash flow more than halved as receivables built up with the higher workload, the Machinery Systems segment made a wider loss, and Environmental Systems orders fell by a third. Separately, the company acknowledges that its own estimate of its cost of equity has risen from 7–8% to 8–9% as Japanese interest rates have moved up.

2Business

The group runs four reported segments plus a small "other" bucket, with eight consolidated subsidiaries as of 31 March 2026.

Building Systems is the core. It covers building HVAC and sanitary work, industrial air conditioning (mainly for factories), electrical installation, and facility systems. This is where the semiconductor fabs, data centres, research facilities and large urban redevelopment projects sit. Overseas arms operate in Thailand, Shanghai and — from May 2026 — Malaysia, where Sanki bought 40% of ES Matrix, an electrical and telecoms installer serving semiconductor and data-centre customers.

Machinery Systems manufactures and sells conveyor and materials-handling systems. Environmental Systems builds water, sewage and waste-treatment facilities, largely for public-sector clients, and includes the Austrian subsidiary AQUACONSULT Anlagenbau. Real Estate rents and manages the group's own property.

How the money is earned matters here. This is percentage-of-completion contracting: revenue is recognised over the life of a project as performance obligations are satisfied, which makes the estimated margin assumed on each contract a critical accounting judgement — the company says so explicitly in its own critical-estimates disclosure. Revenue in any given year is therefore mostly a function of the order book taken in prior years and how fast it is worked off, not of orders won in that year.

On competitive position, the company describes Building Systems demand as firm, driven by large metropolitan redevelopment, data centres, semiconductor plants and research facilities, and says it carried more work into the new year than the year before. It describes Machinery Systems as flat with a difficult order environment, specifically because investment in battery-electric vehicles has become less certain and it had been targeting logistics equipment for secondary-battery plants. It describes Environmental Systems public investment as running at about the same level as the prior year. On the parent-company (non-consolidated) basis the company discloses that 70.4% of building-equipment orders were negotiated rather than competitively tendered, up from 66.8% — relevant context for the margin move, though the company does not draw that link itself.

Cross-shareholdings. These are notable. At 31 March 2026 Sanki held 21 listed stocks with a balance-sheet value of ¥31,890m, plus 49 unlisted holdings at ¥1,546m. The company states this equals 27.7% of consolidated net assets and that it targets below 20% by March 2028, having committed to halving both the number of names and the value from the March 2024 level. It sold ¥5,193m of listed shares during the year. The largest single position is Toyota Motor at ¥13,325m, followed by Imperial Hotel (¥3,377m), Ono Pharmaceutical (¥1,966m) and Canon (¥1,965m). Every holding is justified as a customer relationship in the building-equipment business. Note that the mid-term ROE and EPS targets are explicitly measured excluding gains on the sale of these shares, so the unwind flatters reported earnings without flattering the numbers management is judged on.