ISU Chemical

005950 · KOSPI · ₩005950 · 이수화학

₩9,390▲ ₩240 (2.62%)End-of-day · Oct 28, 2026 · End-of-day prices.
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Valuation model · Discounted cash flow (DCF)

We use a 5-year discounted cash flow: the value of the cash the business is expected to produce, in today's money.

Fair value per share

With these assumptions the model gives no positive value.

Enterprise value
₩206B
Equity value
−₩313B
WACC
6.0%

Model estimate based on the assumptions shown. Not a price target and not a buy or sell signal. This is not financial advice.

Why the model and the price differ

The model gives no positive value at these assumptions. What we can see:

  • To match today's price of ₩9,390, the model needs an operating margin of 2.7% every year (it uses 1.0%).

Treat the model as a starting point: change the assumptions to the story you believe, and compare with the multiples check below.

Bear / Base / Bull

Bear
—
Base
—
Bull
₩29,406
+213.2%

Bear: revenue growth 3 points lower every year, EBIT margin 2 points lower, WACC 1 point higher. Bull: the opposite.

Assumptions

Sign in to change the assumptions and see the results update. Sign in

Cycle options

Margin path

Every year uses the cycle-average margin (1.0%).

Revenue growth

  • -9.1%

    How much sales grow that year, compared with the year before.

    Default: the last 3 years' revenue growth (-9.1% a year, annual reports), fading to 3% by year 5.

  • -6.1%

    How much sales grow that year, compared with the year before.

    Default: the last 3 years' revenue growth (-9.1% a year, annual reports), fading to 3% by year 5.

  • -3%

    How much sales grow that year, compared with the year before.

    Default: the last 3 years' revenue growth (-9.1% a year, annual reports), fading to 3% by year 5.

  • -0%

    How much sales grow that year, compared with the year before.

    Default: the last 3 years' revenue growth (-9.1% a year, annual reports), fading to 3% by year 5.

  • 3%

    How much sales grow that year, compared with the year before.

    Default: the last 3 years' revenue growth (-9.1% a year, annual reports), fading to 3% by year 5.

Business

  • 1%

    Operating profit as a share of revenue.

    Default: through-the-cycle average of the last 12 months and the last 5 annual reports' operating margins.

  • 27.5%

    Share of operating profit paid as corporate tax.

    Default: Korea's top corporate tax rate (25%) plus 10% local income tax.

  • 1.4%

    The non-cash cost of wearing out equipment, added back to cash flow (% of revenue).

    Default: not in the statements, so 80% of capital spending (most spending replaces equipment that wears out).

  • 1.7%

    Money spent on factories, equipment, software and other long-term assets (% of revenue).

    Default: average of the last 3 annual reports (cash flow statements; equipment and intangibles).

  • 11.4%

    Stock and unpaid customer bills, less unpaid supplier bills, as a % of revenue. Each year's extra revenue ties up this much more cash.

    Default: working capital (current assets less cash and deposits, minus current liabilities other than borrowings) as a share of revenue, averaged over the last 3 years.

Discount rate

  • 2%

    How fast cash flows keep growing every year after year 5.

    Default: about Korea's long-run inflation plus real growth.

  • 4.08%

    Yield on Korea's 10-year government bond: the return with almost no risk.

    Default: Korea Treasury Bond 10-year yield on 2026-10-29.

  • 0.76

    How much the share moves when the market moves: 1 means just like the market.

    Default: 105 weeks of weekly returns against KOSPI (official index); raw beta 0.65, adjusted toward 1 and kept between 0.6 and 2.0.

  • 5.5%

    The extra return investors want for owning shares instead of bonds.

    Default: a typical premium for Korean shares.

  • 5.58%

    The interest rate the company would pay to borrow.

    Default: the 10-year yield plus a 1.5% credit spread.

Starting point

Revenue (TTM to H1 2026)
₩2.3T
Net debt (borrowings and leases − cash and deposits)
₩294B
+ Stakes and investments
₩4.6B
Associates, long-term financial assets and deposits (book value)
− Minority interests
₩229B
Shares
26,294,169
Share price
₩9,390
Market cap
₩247B

TTM = trailing 12 months: the last four reported quarters added together. "TTM to H1 2026" is the 12 months up to the latest quarterly or half-year report (H1 = to the end of June). Year 1 grows from there.

Past years and projection

Grey columns are reported results from the annual reports (after-tax EBIT at the model's tax rate), so you can check the growth and margin assumptions against the past. Years 1–5 are the model.

FY2023FY2024FY2025Year 1Year 2Year 3Year 4Year 5
Revenue₩2T₩1.9T₩1.7T₩2.1T₩2T₩1.9T₩1.9T₩2T
Growth−9.6%−4.0%−13.4%−9.1%−6.1%−3.0%0.0%3.0%
EBIT−₩56B−₩51B₩6.9B₩21B₩20B₩19B₩19B₩20B
EBIT margin−2.8%−2.7%0.4%1.0%1.0%1.0%1.0%1.0%
After-tax EBIT−₩41B−₩37B₩5B₩15B₩14B₩14B₩14B₩14B
+ Depreciation———₩29B₩27B₩27B₩27B₩27B
− Capital spending₩42B₩27B₩28B₩36B₩33B₩32B₩32B₩33B
− Working capital−₩6.3B−₩39B−₩2.7B−₩24B−₩15B−₩6.7B₩0₩6.5B
Free cash flow———₩33B₩23B₩15B₩8.1B₩1.8B
Discount factor———0.9440.8910.8400.7930.748
Present value———₩31B₩20B₩12B₩6.4B₩1.4B

Terminal value ₩180B, worth ₩135B today: 65% of enterprise value. It assumes spending settles at 110% of depreciation once growth slows to the terminal rate.

Cross-check: what the market has paid before

For cyclical businesses, analysts check a DCF against the multiples the stock has traded at through past cycles. Price / book is the usual anchor for them: P/E looks highest at the bottom of a cycle, when earnings are smallest, and lowest at the top. The price each band would give today:

LowTypicalHigh
Price / book (book value ₩7,173 a share)Now 1.31×₩5,1010.71×₩10,8691.52×₩20,1002.80×

Low, typical and high are the 10th percentile, middle and 90th percentile of month-end multiples since 2021, each against the latest report out by then, per share at today's share count; loss years and P/E above 100 are left out. Run-rate earnings are one quarter × 4, not a forecast. Model estimate based on the assumptions shown. Not a price target and not a buy or sell signal.

Sensitivity

Fair value per share as two inputs change; the middle is the current case.

WACC ↓ · Terminal growth →1.0%1.5%2.0%2.5%3.0%
5.0%—————
5.5%—————
6.0%—————
6.5%—————
7.0%—————

Now (TTM)

Market cap
₩247B
Enterprise value
₩521B
P/E
2.9×
P/B
1.3×
P/S
0.1×
EV/EBITDA
—
Dividend yield
0.0%

Over time (at each year end)

20252024202320222021
Price₩8,260₩6,100₩13,670₩9,100₩7,275
Market cap₩217B₩160B₩359B₩239B₩191B
P/E———8.6×2.0×
P/B2.3×1.5×2.3×0.8×0.7×
P/S0.1×0.1×0.2×0.1×0.1×
EV/EBITDA—————
Dividend yield0.0%————

Versus similar companies

CompanyP/EP/BP/SEV/EBITDADividend yield
ISU Chemical2.9×1.3×0.1×—0.0%
LG Chem—0.5×0.3×—0.8%
Hanwha Solutions—0.6×0.4×—0.0%
Hanwha6.3×0.4×0.1×—1.4%
SKC—2.1×2.0×—0.0%
KCC0.9×0.3×0.5×8.9×0.0%
Kumho Petro Chemical5.3×0.4×0.4×—1.6%
Similar companies (median)5.3×0.4×0.4×8.9×0.4%

Calculated from end-of-day prices and filed financial statements. Not a recommendation. This is not financial advice.

Also known as: ISU Chemical / 이수화학 / 005950 / KRX:005950

Source: KRX statistical information