Resonac Holdings (4004.T) — ABF Threat Assessment
LITE scaffold. Not a full Stage 0-7 investment tree. Built specifically as the load-bearing comparison test for AJNMY per Codex 2026-05-03 ask. See primer.md and h0_thesis.md for the substantive analysis.
Date: 2026-05-03 · Anchor price: ¥4,250 (TSE-only, no ADR) · Market cap: ~¥800B · Forward P/E and dividend yield not modeled · No earnings event modeled.
Archetype: world's #2 organic-build-up-dielectric supplier; positioned as the natural second-source candidate for substrate-makers seeking to dual-source away from Ajinomoto's ABF; investment thesis as a position vs threat-assessment thesis for AJNMY are SEPARATE — this scaffold only addresses the latter.
I. One-sentence threat-assessment verdict
Resonac is a real but slow-burn threat to Ajinomoto's ABF monopoly. Public evidence (Tier C / Tier B) supports Resonac as a credible second-source candidate for organic build-up dielectric, but no public design-in announcements at named substrate-makers for AI-accelerator-grade FC-BGA exist as of 2026-05-03. Qualification timeline 3-5 years from any triggering event (including Ajinomoto's potential +30% price hike per Palliser). Bounded; does not affect AJNMY pre-May-7 sizing decision; does affect AJNMY 5-10 year terminal-moat assumption.
For full primer + 3-leaf hypothesis test, see:
reports/RESONAC/primer.md— company overview + AJNMY-comparison framingreports/RESONAC/h0_thesis.md— H-0 + 3 falsifiable leaves on the ABF dielectric threat
II. What's NOT in this LITE scaffold (deferred)
- Full L1 decomposition (Profit Pool / Valuation / S-Curve / Strategic Threats / Optionality)
- Full leaf-level hypothesis testing across 5 branches × 3 leaves each (15+ leaves)
- Valuation scenarios for Resonac equity itself (Bull / Base / Bear)
- Implied probability reverse-engineering
- Triggers and red flags
- Long-term durability test (6 questions)
- Section XII Investment Scorecard
- Bilingual
tree_v1_zh.md - Per-ticker
glossary.md - Evidence JSONL with Tier-rated source citations
- Per-ticker
decisions.jsonl
These are deferred to a full Stage 0-7 Resonac tree in a future session, if the owner decides to evaluate Resonac itself as an investment.
III. Implication for AJNMY (the reason this scaffold exists)
Per primer.md §5 and h0_thesis.md synthesis:
| Time horizon | AJNMY share assumption | Position-sizing implication |
|---|---|---|
| 1-3 years | 90-95% | AJNMY thesis intact; sizing per reports/AJNMY/tree_v1_en.md Section XI |
| 3-5 years | 80-90% | Multiple compression begins even if revenue holds |
| 5-10 years | 70-85% | Terminal moat lower than Tier-A 95% headline implies |
For pre-May-7 entry decision (next 4 days): Resonac threat is NOT material. The Codex-recommended 5% AJNMY hard cap absorbs the 5-10 year terminal-moat risk.
For longer-horizon position-sizing decisions (6-12 months): Watch for Resonac investor-day commentary, substrate-maker dual-sourcing disclosure, trade-press writeups. Trim AJNMY before share-shift becomes priced.
Source quality: Tier C throughout this LITE scaffold. No primary Resonac IR materials pulled. Treat as directional sketch, not evidence-grade verdict.