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Interroyal Engineering Public Company (IROYAL) Fair Value & Analysis

Industrials · TH · Market cap 1.1B THB

IE Interroyal Engineering Public Company IROYAL · BK
Price4.58 THB
Fair Value10.03 THB
Upside+119.0%
Quality72/100
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Mixed Growth
Highly profitable · 28.7% net margin
generates free cash flow
8.88% dividend yield
Ranks above peers (12/13)
Wide moat 90/100
Evidence: High Range 5.62 THB – 16.52 THB Share as image

Fair value as of: Jul 16, 2026

From 24 valuation models · updated 25 days ago

Share price −0.4% over the past month.

A solid business, screening 119% undervalued on our models.

What matters now

  • The rarer combination: high quality (72/100) AND below fair value. That earns a closer look rather than a quick verdict.
  • The price is below even our cautious bear case (5.62 THB). The market is more pessimistic than our downside scenario.
  • The model range is unusually wide (5.62 THB to 16.52 THB). The outcome hinges heavily on assumptions, so read the point estimate with caution.
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Price vs Fair Value (21 months)

5.96 THB 2.95 THB Fair Value 10.03 THB Nov 2024 Aug 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 16, 2026.

How to read this chart

21‑month range 2.95 THB – 5.96 THB · fair‑value band 5.62 THB – 16.52 THB · the 4.58 THB price screens below the 10.03 THB fair value. Dashed = 300-day average. As of Jul 16, 2026.

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Analysis

Interroyal Engineering Public Company (IROYAL) currently trades at 4.58 THB, while our model-based Fair Value estimate is 10.03 THB, implying the stock looks roughly 119.0% undervalued today. The Quality Score stands at 72/100 (solid quality), in the Industrials sector. Bull case: trading below our estimate, it may offer upside if the fundamentals hold. Bear case: a low price can be a value trap when quality is weak or the data is thin (evidence: high), always confirm before acting.

Over the trailing twelve months, Interroyal Engineering Public Company generated revenue of 551M THB at a net margin of 28.7%. Revenue grew 151.8% year over year. It earns a return on equity of 27.0%. The stock trades on a trailing P/E of 6.6. Fundamentals as of Jul 16, 2026

Our scenario range runs from 5.62 THB (bear case) to 16.52 THB (bull case); at 4.58 THB, the current price sits below that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 23% below its 52-week high and 56% above its 52-week low, currently below its 200-day average. For context, the median of 10 Industrials peers we cover trades at -48% fair-value upside, at 119%, IROYAL screens cheaper than that median.

Fair Value models

Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.

Model Bear Bear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull Bull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. Evidence
Highest evidence
Residual Income 3.36 THB 4.49 THB 16.52 THB 76
Growth DCF 3.61 THB 5.94 THB 9.61 THB 72
Growth-Adj P/E 18.86 THB 26.95 THB 35.03 THB 68
All 24 models by family
DCF Models
FCF DCF 3.82 THB 5.40 THB 10.09 THB 38
Owner Earnings 7.91 THB 15.97 THB 30.91 THB 31
5Y Revenue Exit 3.42 THB 5.58 THB 10.08 THB 39
5Y EBITDA Exit 6.48 THB 11.76 THB 22.12 THB 41
5Y P/E Exit 7.90 THB 18.33 THB 32.73 THB 38
10Y Revenue Exit 3.48 THB 6.94 THB 9.09 THB 36
10Y EBITDA Exit 5.62 THB 12.95 THB 26.04 THB 37
10Y P/E Exit 6.56 THB 15.74 THB 31.21 THB 35
Earnings-Based
Graham-Dodd 4.00 THB 27.92 THB 39.17 THB 54
Lynch FV 14.42 THB 20.60 THB 26.78 THB 50
PEG = 1.0 14.42 THB 20.60 THB 26.78 THB 46
EPV 5.06 THB 5.70 THB 6.23 THB 59
Multiples
P/E Multiple 9.27 THB 12.36 THB 15.45 THB 63
P/S Multiple 3.09 THB 4.13 THB 5.16 THB 58
P/B Multiple 7.51 THB 10.01 THB 12.51 THB 55
EV/EBIT 9.80 THB 12.94 THB 16.07 THB 53
EV/EBITDA 7.62 THB 10.03 THB 12.43 THB 54
EV/Revenue 3.00 THB 4.12 THB 5.23 THB 43
Asset-Based
NCAV (Graham) 1.37 THB 1.84 THB 2.75 THB 50
Growth DCF
Growth DCF 3.61 THB 5.94 THB 9.61 THB 72
Rev-Margin DCF 3.73 THB 6.32 THB 11.73 THB 67
Economic Profit
Residual Income 3.36 THB 4.49 THB 16.52 THB 76
ROIC Compounder 6.43 THB 9.43 THB 11.45 THB 67
Growth Earnings
Growth-Adj P/E 18.86 THB 26.95 THB 35.03 THB 68

Widest divergence: Growth Earnings (26.95 THB) versus Asset-Based (1.84 THB). Highest evidence: Residual Income (76).

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Key figures & financial health

Revenue (TTM) 549M THB
Revenue growth (YoY) +147%
Net margin 28.7%
Return on equity 27.0%
Free cash flow 57.8M THB FY2025
P/E ratio 7.0
More key figures
Operating margin 36.8%
EPS (TTM) 0.6900 THB
Dividend yield 8.9%
EPS growth (YoY) +240%

Figures from reported company fundamentals · as of Jul 16, 2026. TTM = trailing twelve months.

Quality Score breakdown

Overall quality 72/100

Of which business quality 69 · Market factors (momentum, volatility) 51

Profitability 74
Margins and returns on capital today
Quality Growth 75
Are margins and returns improving?
Cashflow 52
Earnings quality: real cash, not paper profit
Fin. Strength 89
Balance sheet, leverage, solvency risk
Investment 33
Disciplined investing over empire-building
Low Volatility 23
Calm price path (market factor)
Momentum 57
Price trend over the last 3–12 months (market factor)
52W Momentum 71
Distance to the 52-week high (market factor)
Net Issuance 82
Buybacks instead of dilution

Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.

About the company

Interroyal Engineering Public Company Limited provides integrated power, renewable energy, and business solutions. The company's power plant solutions include soot blowers and heating elements for combustion systems and boilers; electrostatic precipitators, industrial fans, steel grinding balls, rubber liners, mist eliminators, slurry pumps, propeller …

Full company description

Interroyal Engineering Public Company Limited provides integrated power, renewable energy, and business solutions. The company's power plant solutions include soot blowers and heating elements for combustion systems and boilers; electrostatic precipitators, industrial fans, steel grinding balls, rubber liners, mist eliminators, slurry pumps, propeller stirrers, and dewatering systems for waste and exhaust management systems; and fill packs for use in cooling systems. It also provides industrial wastewater equipment, liquid handling equipment, and flow control equipment; and single phase and three phase UPS products, lead acid batteries, and electric generators. In addition, the company designs and installs tunnel and metro ventilation systems and solutions. Further, it offers solar pump systems; digital power infrastructure solutions; wired and wireless networks that allows for the management of the plant network through a single device; and maintenance services. Additionally, the company provides market intelligence and forecasting, portfolio optimization, and project finance services. The company serves various industries, including power plants, cement plants, petrochemical facilities, and oil refineries. The company was incorporated in 1992 and is based in Bangkok, Thailand.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2022 – FY2025 · reported fiscal years

Interroyal Engineering Public Company reported revenue of 474M THB in FY2025 versus 115M THB in FY2022, a compound +60.6%/yr. Reported net income was 135M THB in FY2025, compounding +84.9%/yr from FY2022.

Growth Quality 91/100
Revenue is growing, but margins or cash flow do not fully confirm the trend.
Latest Revenue (FY 2025)
474M THB
Latest YoY
+168.6%
Avg. growth/yr (3Y) Measures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump.
+60.6%
Revenue +60.6%/yr
FY22 115M THB
FY23 279M THB
FY24 177M THB
FY25 474M THB
Net income +84.9%/yr
FY22 21.4M THB
FY23 72.2M THB
FY24 59.1M THB
FY25 135M THB

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Cite: Fair Value Calculator (2026). "Interroyal Engineering Public Company Fair Value". https://www.fairvalue-calculator.com/stock/IROYAL

Peer Group

Specialty Industrial Machinery · 808 stocks

How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.

Quality Score 72 · Top 25%
Fair Value upside +119% · Top 25%
Return on equity (TTM) 27% · Top 25%
Return on assets 16% · Top 25%
Net margin (TTM) 29% · Top 25%
Operating margin (TTM) 37% · Top 25%
Revenue growth 147% · Top 25%
Dividend yield (TTM) 8.9% · Top 25%

Valuation Multiples vs Specialty Industrial Machinery median · lower = cheaper

P/E (TTM) 7.0× · Cheaper than 75% of peers
P/B 1.77× · Cheaper than median
P/S (TTM) 2.04× · Pricier than median
P/FCF 0.6× · Cheaper than 75% of peers
EV/EBITDA 5.2× · Cheaper than 75% of peers

Snowflake

Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.

VALUE 100 · sector 0
FUTURE 100 · sector 23
PAST 100 · sector 28
HEALTH 0 · sector 96
DIVIDEND 100 · sector 24

Insider activity: 45/100

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.

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Zhejiang Sanhua Intelligent Controls Co 002050 ¥43.20 ¥22.68 -48%
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Frequently asked questions

Is Interroyal Engineering Public Company (IROYAL) overvalued or undervalued?
As of Jul 16, 2026, our model estimates a fair value of 10.03 THB versus a price of 4.58 THB, about +119% (undervalued).
What is the fair value of IROYAL?
Our model-based fair value for Interroyal Engineering Public Company is 10.03 THB (as of Jul 16, 2026), built from audited fundamentals. The current price is 4.58 THB.
What is the quality score of IROYAL?
Interroyal Engineering Public Company has a Quality Score of 72/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the revenue of Interroyal Engineering Public Company (IROYAL)?
Interroyal Engineering Public Company reported trailing-twelve-month revenue of about 551M THB (latest available figure, as of Jul 16, 2026).
What is the net profit margin of IROYAL?
The net profit margin of Interroyal Engineering Public Company is about 28.7%, meaning it keeps roughly 28.7% of revenue as net income. Based on the latest reported figures.
Does Interroyal Engineering Public Company pay a dividend?
Interroyal Engineering Public Company currently shows a dividend yield of about 9.51% relative to its recent price (as of Jul 16, 2026).

How we calculate Fair Value

Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.

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