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HQ Tainan · Taiwan Reporting TWD Credit synth Aaa/AAA · net cash Valuation 2026-06-01 Damodaran FCFF · 1000-iter MC FCFF · Dark v3

Now cheap at the blended rate, not just the bond floor · +19% margin of safety

BUY — a genuine margin of safety at the 50/50 blended rate, sized for rate sensitivity

Intrinsic value NT$113/share (after a 10% governance haircut; pre-haircut NT$125) vs market NT$95.10 — a +19% gap that now holds at the 50/50 blended TWD risk-free of 2.31%, not only at the suppressed 1.13% bond yield (where it is +45%). It takes a full normalization to a 4.3% discount rate to flip it negative, to NT$78, −18%. The base-year EBIT was reconstructed (±5%) because the MOPS line items were inaccessible, so the operating anchor still carries an asterisk — a reason to size the position, not to skip it.

SectorAuto parts — aftermarket collision plasticsCountry mixUS 58% · DE 12% · TW 12%β / MC σ1.10 sector-aware · ±NT$6/sh (1000 runs)GovernanceFamily-controlled (>50%) · 10% haircutQuality~70% world share · net cash · synth AAAIncomeNT$5.00 dividend · ~5% yield

Intrinsic / share

NT$112.78

post 10% gov · pre NT$125.31

Market / share

NT$95.10

1 Jun 2026 · TWSE

Margin of safety

+18.6%

vs intrinsic

Enterprise value

NT$73.09B

72.9% terminal

Cost of equity / debt

7.39% / 2.17%

β 1.10 · CRP 0.39%

Terminal ROIC / g

10.00% / 2.00%

spread ~271bp (ROIC 10.00% vs WACC 7.29%)

What it sells, where it sells

Operating segments

Aftermarket (AM)~70% world share of collision plastics, 25,000+ SKUs; AM gross margin hit 40.5% in Jan 2026 — the moat and the cash engine~75%

OEMTesla / VW / Audi supply plus China JVs (Shanghai, Hefei now profitable); EV mix heading to 40-45% — the second growth leg~25%

The split is NT$18.82bn aftermarket / NT$6.28bn OEM. The aftermarket book is repair-frequency-driven — tied to vehicle parc and accident rates, not the new-car cycle — which is what makes the ~70% share durable; the OEM/EV leg (China plants turned profitable end-2025) is the growth optionality the base case barely credits.

Country mix (revenue-weighted CRP input)

🇺🇸United States58%

🇩🇪Germany12%

🇹🇼Taiwan12%

🇨🇳China10%

🇯🇵Japan8%

With ~58% of revenue US-denominated and over 60% USD-billed, the headline numbers are highly FX-sensitive: the optical −2% FY25 revenue dip was largely a strong-TWD effect, and NTD appreciation has driven NT$1bn-plus FX losses at peers. The US weight also carried the tariff event — 27.5% vs 15% for rivals — now resolving under the Feb 2026 Taiwan-US reciprocal deal.

Background — five things to know before the case

Context the share price doesn't carry on its face. Skim this once and the bull / bear bullets below stop reading as inside baseball.

Global #1 in aftermarket collision plastics with ~70% world share. 25,000+ SKUs give a one-stop lock-in distributors cannot easily replicate. The moat is repair-frequency-driven — tied to the vehicle parc and accident rates rather than the new-car cycle — and FY25 was a correction year (revenue NT$25.09bn, −1.97% YoY, still the 2nd-highest ever), not a structural break.
The cheapness was event-driven, and the event is resolving. A US 27.5% tariff (232 + base) on Tong Yang's exports vs 15% for Japanese/Korean/European rivals from Apr 2025 froze customer orders (Jan-Feb 2026 AM revenue −25%, OEM −20% — a "peak season that wasn't"). The Feb 2026 Taiwan-US reciprocal deal sets Taiwan at 15% non-stacking with >2,000 lines exempt; management calls the variable "completely removed" and has restarted Tainan/Qigu/Xinshi capacity.
The mold moat is a hard capital barrier. 300-400 new molds developed per year on ~NT$1.8bn annual mold capex — far above competitors. Raw materials are ~40% of cost and labor only ~11%, so this is a tooling-and-scale business, not a labor-arbitrage one.
A second growth leg in EV/OEM. Three dedicated EV plants since 2023; the Shanghai plant is fully profitable and Hefei turned profitable end-2025, with China JVs restructured toward FAW / Changan / GAC / Tesla (FAW + Tesla ~75% of China revenue). EV mix is guided toward 40-45%. None of this optionality is load-bearing in the base case.
Net cash, ~5% yield — but family-controlled. FY25 EPS NT$6.43, cash dividend NT$5.00 (~5% yield), net cash with a synthetic AAA. The Wu family holds >50%, a typical Taiwan controlling structure that earns the 10% governance haircut applied here.

Where we diverge from the sector

Each row asks: if we'd used the sector median for this one assumption instead of our override, how much would the share price change? Negative = our override is more conservative (worth less); positive = more aggressive (worth more). Skim down the rightmost column to see which bets are doing the work.

Assumption

Our input

Sector median

Value impact

01Revenue growth10-year revenue CAGR vs Auto Parts median

~3.8% CAGR5% Y1-5 (tariff/order recovery) fading to 2.0% terminal — no EV-ramp upside credited

~4.0% CAGRAuto Parts, global cross-sector median

+NT$4

02Operating marginYear-5 target vs sector median EBIT margin

18.0%Held near the reconstructed FY25 ~18.9% EBIT proxy — record AM gross margin (40.5% Jan-26) not extrapolated

~8%Auto Parts sector median operating margin

+NT$66

03Sales-to-capitalReinvestment efficiency vs sector median

0.70×Mold- and plant-heavy (~NT$1.8bn/yr mold capex, restarted Tainan/Qigu/Xinshi builds)

~1.5×Auto Parts industry standard

−NT$10

04Terminal growthYear 10+ steady state vs TWD risk-free ceiling

2.00%≈ TWD long-run inflation; ≤ the 2.31% blended risk-free ceiling (Damodaran's stable-growth rule)

2.00%Long-run inflation anchor — no override

NT$0

05Cost of capital10y WACC vs WACC implied by sector-median β

7.29%β 1.10 (sector-aware, anti-suppression) over the suppressed 0.14 regression · CRP 0.39% · TWD rf 2.31% (50/50 blend)

~7.3%Auto Parts re-levered β ≈ 1.10 — input already sits at the sector anchor

NT$0

Net effect of overrides

Overrides net +NT$58/share vs all-defaults — almost all of it is holding the reconstructed ~18% operating margin against a single-digit sector median (+NT$66), partly offset by a deliberately low, capital-heavy 0.70× sales-to-capital (−NT$10). Growth, terminal, and WACC sit at or near the sector anchor. The remaining swing factor is the TWD risk-free itself: +19% at the 2.31% blend, +45% at the 1.13% local-bond floor, −18% at a normalized 4.3%.

+NT$58

Our override Sector median Override adds value Override subtracts value

The story & the five claims

The 10-year story this DCF is built on, plus the five anchor claims that translate the story into engine inputs.

The 10-year story

Tong Yang is the global #1 in aftermarket collision plastics — roughly 70% of the world's market, 25,000-plus SKUs, a mold moat that costs ~NT$1.8bn a year to maintain, and a repair-frequency demand base that is structurally steadier than the new-car cycle. On the business this is a clear quality name: net cash, ~5% yield, a tariff headwind that is already resolving, and an EV/OEM second leg the base case barely credits. At the 50/50 blended TWD risk-free of 2.31% — our decision rate — intrinsic value is NT$113 after a 10% family-control haircut, a +19% margin of safety over the NT$95.10 price. That gap is no longer an artifact of the suppressed local bond: at the 1.13% bond floor it widens to +45%, and it takes a full normalization to a 4.3% discount rate to flip it negative, to NT$78 (−18%). The base case is modest — about 5% revenue growth through year five as tariff-frozen orders recover, fading to a 2.0% terminal rate (long-run TWD inflation), with operating margin held near the reconstructed FY25 ~18% level rather than extrapolated higher. Revenue compounds from NT$25.1bn today to roughly NT$37.5bn by year ten. The whole valuation is taken after a 10% haircut for >50% family control. The verdict is a size-aware BUY: a genuine margin of safety at the decision rate, tempered by two asterisks — the position still loses money if TWD rates fully normalize, and the base-year EBIT had to be reconstructed (±5%) because the MOPS filing line items were inaccessible.

Two debates worth pressure-testing

Is the +19% a real margin of safety, or just a low-rate artifact?

Our view: Real, at the decision rate. The +19% (NT$113 vs NT$95.10) now holds at the 50/50 blended 2.31% TWD risk-free — not only at the suppressed 1.13% bond (where it is +45%). It only flips negative (−18%, NT$78) under a full normalization to a 4.3% discount rate. Under our risk-free methodology the blend, not the bond floor, is the headline, so the disagreement with the market survives a fair discount rate. That makes this a size-aware BUY rather than the pure rate-regime bet it looked like when the page headlined 1.13%.

How much weight can the operating anchor bear?

Our view: Less than usual. The base-year EBIT was reconstructed to within ±5% because the MOPS line items were inaccessible, and this name was not part of the deeper rebuild/adversarial-verify rework the other Taiwan names got. The ~18% margin is defensible against the FY25 record AM gross margin of 40.5%, but it is a reconstruction, and the thesis leans on the summary note and deep research rather than a firmed-up filing — a reason to size the position, not to skip it.

CLAIM 01Revenue compounds ~5% Y1-5 as tariff-frozen orders recover, fading to 2.0%.growth_high: 5.0% · terminal: 2.0% · NT$25.1B → NT$37.5BFeb 2026 Taiwan-US reciprocal deal removes the 27.5%-vs-15% tariff disadvantage; order recovery guided for Q2 2026. EV/OEM ramp is excluded as free upside.

CLAIM 02Operating margin holds near 18%, the reconstructed FY25 level.target_op_margin: 18% from Y5AM gross margin reached 40.5% (Jan 2026), blended ~33.8%. Holding 18% EBIT prices the mold moat and one-stop pricing power without extrapolating the record gross margin higher. Caveat: base-year EBIT reconstructed ±5%.

CLAIM 03Reinvestment stays mold- and plant-heavy.S2C: 0.70× Y1-5 and Y6-10~NT$1.8bn/yr mold capex plus restarted Tainan/Qigu/Xinshi builds; raw materials ~40% of cost. A deliberately low 0.70× — below the sector — is a value drag we accept, not a stretch.

CLAIM 04Margin and growth converge by Year 5 (2030).year_of_convergence: 5Tariff recovery and margin maturation complete by year 5; no further expansion in years 6-10, with growth fading linearly to the 2.0% terminal rate.

CLAIM 05No failure risk — net cash, family-controlled, no distress tail.terminal_g: 2.0% · failure: 0% · gov haircut: 10%Net cash, ~5% yield, synth Aaa/AAA. 10% governance haircut for >50% Wu-family control; terminal ROIC faded to 10% from the engine's ~19% to avoid an unfaded perpetual-moat assumption.

Where we diverge from sell-side

The +19% holds at the blended rate, not just the bond floor. At the 50/50 blended 2.31% TWD risk-free the model says +19% (NT$113); at the 1.13% local-bond floor +45%; only at a normalized 4.3% does it turn −18%. We headline the blend per our risk-free methodology — the disagreement with the market survives a fair discount rate, which is why this is a BUY we size for rate sensitivity rather than a HOLD.
Operating margin held at ~18%, not reverted to the ~8% sector median. The mold moat and ~70% share justify a premium margin, and the AM line printed a 40.5% gross margin in Jan 2026 — but the 18% EBIT anchor rests on a reconstructed base year (±5%), the single biggest caveat in this file.
β set to 1.10 by sector-anti-suppression, not the 0.14 regression. The raw regression β is implausibly suppressed by thin float and the >50% family overhang; using the re-levered Auto Parts sector β of 1.10 lifts WACC to 7.29% rather than flattering the valuation with a near-zero β.
Governance haircut 10%, terminal ROIC faded to 10%. >50% Wu-family control earns a full 10% haircut (heavier than the 5% used on cleaner Taiwan names); terminal excess returns faded from the engine's ~19% to 10% to avoid an unfaded perpetual moat.
EV/OEM and China-plant optionality excluded. The profitable Shanghai/Hefei plants and the 40-45% EV-mix target are real but uncredited — free upside, not part of the NT$113.

Two-sided case — bear anchors

Full rate normalization still breaks the thesis. ~73% of value sits in the terminal block. The +19% holds at the 2.31% blend, but a move all the way to a normalized 4.3% discount rate takes intrinsic to NT$78 — −18% below today's NT$95.10. The margin of safety is real but rate-sensitive: size the position for it rather than treating it as a deep-value cushion.
The reconstructed base year is wrong. EBIT was rebuilt to ±5% because MOPS line items were inaccessible. If the true operating margin is materially below the ~18% assumed, the operating anchor and most of the explicit-period value erode — and this name never went through the deeper rebuild/adversarial-verify pass.
TWD strength keeps compressing reported earnings. Over 60% of revenue is USD-billed; the FY25 −2% revenue dip was largely currency. A structurally strong TWD shrinks the reported NT$ numbers the market anchors on, roughly 1-for-1, even at flat USD volume.
The tariff recovery stalls or reverses. The thesis depends on the Feb 2026 Taiwan-US deal actually flowing through to orders from Q2 2026. If the order freeze persists, the FY26 recovery slips and the explicit-period growth assumption is too high.
Collision frequency is a slow secular headwind. The aftermarket book is tied to accident rates; widening ADAS/safety-tech adoption gradually lowers collision frequency, a long-tail drag on the ~70%-share moat that the steady terminal growth does not stress.

Risks to thesis (tail, not bear case)

Rate normalizationHigh

~73% of value is the terminal block. The +19% margin holds at the 2.31% blended TWD risk-free, but a full normalization to a 4.3% discount rate takes intrinsic to NT$78, −18% below price. Real but rate-sensitive — size accordingly.

Reconstructed base-year EBITHigh

FY25 operating income was reconstructed to ±5% because MOPS line items were inaccessible, and this name skipped the deeper rebuild/adversarial-verify rework. If the true margin is well below ~18%, the operating anchor and most explicit-period value erode.

TWD appreciationMed

Over 60% of revenue is USD-billed; the 2025 revenue decline was largely currency. A persistently strong TWD compresses reported revenue and margin roughly 1-for-1 even at flat USD volume.

Tariff recovery stallsMed

The thesis assumes the Feb 2026 Taiwan-US 15% non-stacking deal flows through to orders from Q2 2026. If the Jan-Feb 2026 freeze (AM −25%, OEM −20%) persists, the FY26 recovery and explicit growth assumption are too high.

Collision-frequency secular dragLow

Aftermarket demand is tied to accident rates; widening ADAS/safety-tech adoption slowly lowers collision frequency. A long-tail headwind to the ~70%-share moat, not a near-term break.

Family-control governanceLow

The Wu family holds >50% — typical Taiwan controlling structure with related-party/JV oversight risk. Already priced via the heavier 10% governance haircut.

10-year forecast

Revenue NT$25.1B → NT$37.5B over 10y (5% Y1-5 tariff/order recovery, fading to a 2.0% terminal). Operating margin held near the reconstructed FY25 ~18% level — the record 40.5% AM gross margin is not extrapolated higher.

Monte Carlo distribution

At the 2.31% blended risk-free, 1,000 correlated draws span p5 NT$95 to p95 NT$115 (median NT$104) — only ~6% land below today's NT$95.10, i.e. the price sits near the 5th percentile of intrinsic outcomes. At the 1.13% bond floor the whole band shifts up (+45%); at a normalized 4.3% the centre falls to NT$78. The Monte Carlo prices business uncertainty at the decision rate; the rate regime is the bookend stress.

Mean NT$104.68 ± NT$6.35/sh, 1000 iterations (0 failed). P(intrinsic < market NT$95.10) = 5.9%.

Cost of capital build

Risk-free rate	2.31%
Mature-market ERP	4.27%
Levered β	1.10
Weighted CRP	0.39%
Cost of equity	7.39%
Pre-tax cost of debt (synth Aaa/AAA)	2.71%
D / V	~2%
WACC	7.29%

Full year-by-year DCF

Year	Revenue	Op mgn	EBIT	EBIT(1−t)	Reinvest	FCFF	PV
1	NT$26.35B	18.74%	NT$4.94B	NT$4.00B	NT$1.79B	NT$2.21B	NT$2.06B
2	NT$27.67B	18.56%	NT$5.13B	NT$4.16B	NT$1.88B	NT$2.28B	NT$1.98B
3	NT$29.05B	18.37%	NT$5.34B	NT$4.32B	NT$1.98B	NT$2.35B	NT$1.90B
4	NT$30.50B	18.19%	NT$5.55B	NT$4.49B	NT$2.07B	NT$2.42B	NT$1.83B
5	NT$32.03B	18.00%	NT$5.76B	NT$4.67B	NT$2.18B	NT$2.49B	NT$1.75B
6	NT$33.44B	18.00%	NT$6.02B	NT$4.86B	NT$2.01B	NT$2.85B	NT$1.87B
7	NT$34.71B	18.00%	NT$6.25B	NT$5.04B	NT$1.82B	NT$3.22B	NT$1.98B
8	NT$35.82B	18.00%	NT$6.45B	NT$5.18B	NT$1.59B	NT$3.60B	NT$2.07B
9	NT$36.75B	18.00%	NT$6.61B	NT$5.31B	NT$1.33B	NT$3.97B	NT$2.15B
10	NT$37.48B	18.00%	NT$6.75B	NT$5.40B	NT$1.05B	NT$4.35B	NT$2.22B

Methodology & flags

Damodaran FCFF DCF, 10y explicit + perpetuity, in TWD. Risk-free 2.31% (local-currency government bond). Synthetic credit Aaa/AAA. CRP 0.39% from revenue-weighted country mix × Damodaran 2026 CRPs. Terminal ROIC faded to 10.00%; 10% governance haircut applied post-DCF. Monte Carlo: 1000 iterations. Engine v1.0.0 · result: /Users/valentin/Documents/notes_jiliac_labs/Finance/Damodaran/valuations/tongyang/output/2026-06-01-result.json

R&D cap: OFF · Lease cap: OFF · Failure: OFF · ESO: OFF
Governance haircut: 10% applied post-DCF (NT$125.31 > NT$112.78)
Sensitivity tornado: not run

FCFF DCF · dark theme v3. Generated 2026-06-01T10:54:25 from /Users/valentin/Documents/notes_jiliac_labs/Finance/Damodaran/valuations/tongyang/output/2026-06-01-result.json.