Daido Steel Co., Ltd.
5471.THIGHRare Earth Magnets / Hot-Deformed NdFeB · Weight: 5%· Data as of 2026-05-07
Investment Thesis
World's ONLY mass producer of hot-deformed Dy/Tb-free NdFeB permanent magnets (via subsidiary Daido Electronics, Nakatsugawa, Gifu). ALL Honda HEV motors use this proprietary nano-grain foil technology, co-developed with Honda in 2016 and adopted in Honda Freed onward. China's January 2026 targeted export restrictions on Dy/Tb heavy rare earths directly to Japan make Daido's heavy-rare-earth-free route strategically indispensable — no substitute supply at scale exists. Competitor Proterial only announced its own Dy/Tb-free process in July 2025 (10-year lag). As Honda ramps from near-zero to 1M+ e-motorcycles/year by 2030 — each requiring a BLDC motor — Daido is the sole qualified magnet supplier for Honda's preferred motor architecture. ¥320B market cap, PE ~11x, EBITDA margin 12.7%, dividend yield 3.06% — cheap for a monopoly.
Risk
Single-factory concentration (Nakatsugawa) — natural disaster or fire disrupts supply with no backup. Proterial's new Dy/Tb-free line, if validated by Honda, offers eventual competition (timeline 3-5 years minimum). Honda could shift entry-level e-motorcycle motors to ferrite magnets (no rare earth, lower performance) for cost reduction in India/Vietnam. NdPr oxide raw materials still partially China-sourced — further Chinese export tightening could constrain output. PE ~11x looks cheap but Daido is also a broad special steel maker; magnet division is ~15% of revenue.
Monitoring Trigger
If Honda announces e-motorcycle production target >500K units/year before 2027, add. If Proterial announces Honda qualification of its Dy/Tb-free magnets, reduce. If China expands rare earth export restrictions to NdPr (beyond Dy/Tb), add urgently (supply constraint deepens). If Daido announces second magnet factory, add (capacity derisking).
Key Dates
Update History
New addition: Honda e-motorcycle tier-2 supply chain. World-only hot-deformed Dy/Tb-free NdFeB producer. China export restrictions make this strategically critical. PE ~11x cheap for monopoly position.
Key Metrics
Business Segments
| Segment | Revenue | Share | Description |
|---|---|---|---|
| Specialty Steel | ~¥490B est. | ~85% | Tool steel, stainless steel, spring steel for automotive and industrial |
| Rare Earth Magnets (Daido Electronics) | ~¥85B est. | ~15% | Hot-deformed Dy/Tb-free NdFeB magnets for Honda HEV/EV traction motors — sole-source supplier |
Supply Chain Evidence
| Evidence | Customer | Product | Detail |
|---|---|---|---|
| confirmed | Honda Motor Co., Ltd. | Hot-deformed Dy/Tb-free NdFeB permanent magnets for EV/HEV traction motors | Joint development with Honda announced July 2016: world's first heavy-rare-earth-free hot-deformed NdFeB magnet, mass-produced at Daido Electronics (Nakatsugawa). Adopted in Honda Freed hybrid and all subsequent Honda HEV models. Japan Times June 2025 article 'Honda supplier rethinks China relationship as trade war bites' profiles Daido Steel directly.[source](2016-07) |
| probable | Honda Motor Co., Ltd. (extended) | NdFeB magnets for e-motorcycle BLDC motors (Honda Activa e:, ICON e:, UC3) | Honda's two-wheeler EV motors (4.2 kW rated for Activa e:) require NdFeB permanent magnets. Given Daido's sole-source status for Honda HEV motor magnets, extension to two-wheeler EV motors is the natural path. Japan Times (June 2025) confirms Honda evaluating Daido relationship for expanded supply.[source](2025-06) |
Primary IR Documentation
Values and insights cited from official company IR releases (earnings, 決算短信, MoUs, presentations).
Cites: Primary IR portal
https://www.daido.co.jp/en/ir/index.html
Cites: FY2026 full-year results (IFRS)
https://www.daido.co.jp/en/common/pdf/pages/ir/library/result/2603_4q_en.pdf
Cites: Results briefing deck
https://www.daido.co.jp/en/common/pdf/pages/ir/library/presentation/202603.pdf
Cites: Integrated report — covers Dy/Tb-free NdFeB magnet business
https://www.daido.co.jp/en/common/pdf/pages/sustainability/data/2025_viewing.pdf
Cites: Canonical 2016 announcement of Dy/Tb-free hot-deformed NdFeB magnet via Daido Electronics
https://www.daido.co.jp/en/event/160712_freemag_hevmotor.html
Sources & References
Peer Comparison
| Company | PE | Fwd PE | ROE | Op Margin | FCF |
|---|---|---|---|---|---|
| Murata Manufacturing | ~49.7x TTM (impairment-distorted; fwd PE ~37x on FY2026 guidance) | ~37x (on FY2026 OP +34.8% guidance) | 7.25% | 15.4% | +¥239B |
| TDK Corp | 26.51 | 23.71 | 11.4% | 12.4% | +¥169B |
| Fuji Electric | 20.59 | 17.97 | 8.2% | 8.7% | +¥51B |
| Sumitomo Metal Mining | 28.63 | 19.76 | 5.0% | 5.0% | +¥87B |
| AGC Inc | 17.89 | 14.7 | 4.7% | 6.2% | +¥65B |
| Kureha Corp | N/A | 19 | -6.7% | -11.1% | ~est. negative (capex ongoing) |
| Asahi Kasei | 13.4 | 12.9 | 7.7% | 7.5% | +¥134B |
| Mitsubishi Electric | 32.85 | 30.6 | 10.1% | 9.1% | +¥317B |
| Nidec Corp | 6.3% | 5.0% | +¥174B | ||
| Hirose Electric | 23.3 | 23.5 | 9.0% | 20.3% | ~+¥36B |
| Sumitomo Electric | 25.5 | 29.7 | 10.2% | 8.2% | +¥102B (est.) |
| Resonac Holdings | 83.53 | ~31.6x | 5.72% | 4.3% | +¥24B |
| Rohm Co. | Loss (NI -¥158.4B SiC impairment) | ~125x (near-breakeven NI; FY2028 target >20% OP margin) | Loss | +1.6% Q3 FY2026 (recovering from -9.0% year ago) | -¥44B |
| Shindengen Electric Manufacturing Co., Ltd. | 30.8 | N/A | N/A | N/A | N/A |
| GS Yuasa Corporation | 11.04 | N/A | 9.59% | N/A | N/A |
| Mitsuba Corporation | 5.5 | N/A | N/A | N/A | N/A |
| Daido Steel Co., Ltd. | ~11x | N/A | N/A | N/A | +est. |
| Nippon Seiki Co., Ltd. | 12.45 | 12.05 | N/A | N/A | +confirmed |
| Musashi Seimitsu Industry Co., Ltd. | 31.6 | N/A | N/A | 11.1% | N/A |
| Stanley Electric Co., Ltd. | 13.8 | 4.5% | 6.3% | N/A | |
| Honda Motor Co., Ltd. | 7.77 | 5.82% | 7.0% | N/A | |
| Mitsui High-tec, Inc. | 15.3 | 13 | 11.8% | 5.8% | -¥12B |
| MinebeaMitsumi Inc. | 18.7 | 13.75 | 9.1% | 6.2% | -¥21B |
| Ryobi Limited | ~8x | N/A | 4.4% | 3.2% | N/A |
| Tokai Rika Co., Ltd. | ~8x | N/A | 10.9% | 5.9% | +est. ¥15-20B |
| Nippon Chemi-Con Corporation | 91 | 7 | 3.1% | 2.9% | ~0 (thin; ¥20B capex planned) |
| Japan Aviation Electronics Industry, Ltd. | 13.7 | 5.1% | 7.1% | thin (¥63B capex over 3yr) | |
| ARCHION Corporation | 11 | 11 | ~6% | ~2.0% | Negative on integration capex through FY2027 |
| Alps Alpine Co., Ltd. | 18.3 | N/A | N/A | 2.4% | N/A |
| Nichicon Corporation | 16.74 | N/A | N/A | 3.8% | N/A |
| Mikuni Corporation | 4.2 | N/A | N/A — confirm vs J-Quants | N/A — thin, est. 1-3% | N/A |
| T.RAD Co., Ltd. | N/A — confirm vs StockAnalysis | N/A | N/A — confirm vs J-Quants | N/A | N/A |
| Renesas Electronics Corporation | N/A (EPS negative — IDT amortization ¥370B/yr; operating profit positive) | N/A | ~10.5% (pre-impairment FY2025; currently impaired by amortization) | N/A — confirm vs J-Quants | N/A |
| Shin-Etsu Chemical Co., Ltd. | 24.79x TTM | 22.32x (pre-PVC recovery) | ~10.5-11.5% | ~24.7% (FY2026; compressed -14.4% from PVC weakness) | +¥739.4B (FY2025 — outstanding) |
| Sumitomo Bakelite Co., Ltd. | ~17.2x TTM | ~12.0x (FY2025 guidance ¥25.5B NI) | 6.54% | 10.3% (FY2025 guidance) | +¥46B est (EV/FCF 8.73x, EV ~¥400B) |
| NSK Ltd | 32.12 | 22.70 | 1.8% | 2.96% | +¥44B (est.) |
| Toray Industries Inc | 25.97 | 16.62 | 3.19% | 5.0% | N/A |
| SMC Corporation | 29.0 | 27.24 | 7.9% | N/A | +¥200B (est., high net income + minimal capex) |
| Mitsui Kinzoku Company, Limited | ~29.7x TTM / ~22.3x forward (StockAnalysis/Simply Wall St, May 2026) | ~22.3x | ~18.4% | ~15.6% (implied: OP ¥117B / revenue ¥750B FY2025E) | N/A (verify J-Quants; positive expected given OP margins) |
| UBE Corporation | ~8.4x TTM (cheaply valued) | N/A | ~5.1% (WARNING: below TSE 8% target — ROE guardrail triggered. Override: capex-heavy transition period; electrolyte growth pipeline.) | ~4.7% (thin — monitor for recovery to 7%+) | N/A (capex-heavy with Louisiana plant — verify against J-Quants when available) |
| Taiyo Yuden Co., Ltd. | 20.79x TTM (StockAnalysis, May 2026) | 27.52x (FY2026 guidance: +8% revenue, +50% OP income) | 3.92% | ~3.3% TTM (trough); guided to ~4.8–5% FY2026 on +50% OP recovery | N/A |
| F.C.C. Co., Ltd. | 9.5x | N/A | N/A | N/A | N/A |
| Nittoku Co., Ltd. | 14.12x | 15.45x | N/A | N/A | N/A |
| NOK Corporation | 15.5x | N/A | ~3-5% | 4.9% | N/A |
| Yokowo Co., Ltd. | N/A | N/A | N/A | 5.1% | N/A |
| Yamaha Motor Co., Ltd. | 7.5 | N/A | 1.4% | 5.0% | +¥52.5B |
| Hioki E.E. Corporation | 27.8x | N/A | N/A | N/A | N/A |
| Tsubakimoto Chain Co. | ~11.2x | N/A | 8.75% | ~8.1% | est. +¥20-25B |
| Central Glass Co., Ltd. | 17.7x | ~14x (26% EPS growth forecast; analyst consensus) | ~8.2% (est: NI ¥8.36B / book value ¥101B) | ~3.2% (compressed; was ~6-9% pre-Chinese LiPF6 price war) | N/A (J-Quants not available; cross-validate before entry) |
| CKD Corporation | ~36x | ~20x (analyst forecast; likely conservative given 35.7% recent earnings growth) | 9.19% | 12.4% | N/A |
| Panasonic Holdings Corporation | 32.4x | ~15x (FY2027 NI expected +2.2x from ¥75B base) | 4.77% (FY2026 trough; guided higher FY2027) | ~2.9% (FY2026: OP ¥236.4B / Revenue ¥8,049B; compressed by restructuring charges) | N/A (Panasonic Energy capex-heavy; cross-validate before entry) |
| UACJ Corporation | 15.46x | ~22x (FY2027 NI guided ¥28B from ¥38.8B; NI decline; caution) | 11.21% | ~5.4% (Q3 FY2026 9M operating profit margin improving from prior year) | N/A (capital-intensive aluminum rolling; verify before entry) |
| Kanto Denka Kogyo Co., Ltd. | N/A (loss year FY2026 due to fire). Forward PE ~32x on FY2027 guided EPS ¥118.3 | ~32x (FY2027 guided NI ¥6.8B / shares 57.46M = ¥118.3 EPS; price ¥3,775) | -4.74% (FY2026 fire loss). FY2027 guided ROE ~10% (¥6.8B NI / ¥68B book) | ~8.7% guided FY2027 (¥10B OP / ¥95B revenue). Depressed in FY2026 (fire losses) | Negative FY2026 (fire year). Recovery expected FY2027. |
| Niterra Co., Ltd. | 15.42 | 14.67 | 14.80% | ~19% (FY2027 guide: ¥150B OP / ¥790B rev) | +¥80B est. |
| Nippon Sanso Holdings Corporation | ~18.6x est. | N/A | ~10% est. | ~15-16% (Q4 FY2026: ¥56.8B / ¥361.8B) | +¥90B est. |