Kurita Water Industries
6370.THIGHCore · Weight: 30%· Data as of 2026-05-17
Investment Thesis
World's largest semiconductor water treatment company — the Kurita moat is chemical process expertise spanning 75+ years, embedded in 10,000+ client facilities across 20+ countries. Serves 80% of global semiconductor foundry capacity by geography (Japan, Korea, Taiwan, South Asia). FY2026 earnings miss was revenue recognition timing, not demand: operating cash flow grew 72.5% YoY, confirming structural strength. FY2027 guidance positive — ongoing global semiconductor investment and US expansion (Pentagon Technologies, Avista Technologies acquisitions) drive revenue diversification.
Risk
1) ROE 6.5% below TSE 8% governance target — risk of continued discount vs peers. 2) PE 36x elevated due to earnings timing miss — if structural rather than timing, valuation expensive. 3) US acquisitions integration risk. 4) General Industry segment (steel, power) is mature — growth depends on Electronics segment accelerating.
Monitoring Trigger
Full-year FY2026 results (May 2026): if full-year OP >¥50B and OCF guidance remains strong, HOLD. If management provides FY2027 OP guidance >¥60B, ADD. If US semiconductor fab ramp accelerates (TSMC Arizona P2 orders visible), ADD 5%.
Key Dates
Update History
Initial DD — world #1 semiconductor water chemicals, PE 36x reflects FY2026 earnings miss (not structural), OCF +72.5%, FY2027 positive guidance
Key Metrics
Business Segments
| Segment | Revenue | Share | Description |
|---|---|---|---|
| Electronics Industry | ~¥200B | ~50% | UPW chemicals and systems for semiconductor and display fabs globally. Higher-margin, faster-growing. |
| General Industry | ~¥203B | ~50% | Water treatment chemicals for boilers, cooling towers, and wastewater — steel, power, chemical, food industries. |
Supply Chain Evidence
| Evidence | Customer | Product | Detail |
|---|---|---|---|
| confirmed | Global semiconductor foundries (TSMC, Samsung, Micron, Intel fabs) | UPW chemicals, process water treatment chemicals, system O&M | Company operates in Japan, South Korea, Taiwan, and South Asia — covering 80% of global semiconductor foundry capacity. Provides one-stop service: install, operate, manage, maintain UPW systems.[source](2026-05) |
| confirmed | US semiconductor fabs (via Pentagon Technologies, Avista Technologies) | Post-CMP cleaning, advanced process water treatment | Acquired Pentagon Technologies and Avista Technologies to expand US semiconductor water treatment. Strengthens position for TSMC Arizona, Samsung Taylor, Micron US.[source](2025-2026) |
| confirmed | European semiconductor fabs (TSMC Dresden, Intel Germany ecosystems) | Water treatment chemicals and systems | Kurita Europe operates water treatment business for semiconductor and industrial clients across Europe, positioned for CHIPS Act fab buildout.[source](2026-05) |
Sources & References
Peer Comparison
| Company | PE | Fwd PE | ROE | Op Margin | FCF |
|---|---|---|---|---|---|
| Nomura Micro Science | 17.2 | 11.7 | 15.2% | 14.1% | +¥4B (est FY2026 trough) |
| Kurita Water Industries | 36 | N/A | 6.5% | 12.8% | positive (OCF +72.5% YoY FY2026) |
| Metawater | 13.16 | 11.78 | 9.1% | 5.9% | positive |
| Toray Industries | 14.2 | N/A | 4.6% | N/A | N/A |