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Seojin System

178320 · KOSDAQ · ₩178320 · 서진시스템

₩32,450▲ ₩2,450 (8.17%)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
−₩290B
Equity value
−₩1.6T
WACC
7.2%

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 ₩32,450, the model needs an operating margin of 22.1% every year (it uses 5.2%).
  • Margins ranged from 0.1% to 9.6% over the last 5 years, so this is a cyclical business. The model uses the average; the price may be set by where the cycle is now. Try the margin fade option.
  • In the projection, spending on equipment, software and working capital takes most or all of the after-tax operating profit, so free cash flow is thin. Companies that invest heavily often look like this until spending slows.

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
—

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 (5.2%).

Revenue growth

  • 10.6%

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

    Default: the last 3 years' revenue growth (10.6% a year, annual reports), fading to 3% by year 5.

  • 8.7%

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

    Default: the last 3 years' revenue growth (10.6% a year, annual reports), fading to 3% by year 5.

  • 6.8%

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

    Default: the last 3 years' revenue growth (10.6% a year, annual reports), fading to 3% by year 5.

  • 4.9%

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

    Default: the last 3 years' revenue growth (10.6% 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 (10.6% a year, annual reports), fading to 3% by year 5.

Business

  • 5.2%

    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.

  • 6.6%

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

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

  • 21.2%

    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).

  • 40%

    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.

  • 4.11%

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

    Default: Korea Treasury Bond 10-year yield on 2026-10-28.

  • 0.91

    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 0.86, 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.

  • 5.61%

    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)
₩1.2T
Net debt (borrowings and leases − cash and deposits)
₩1.3T
+ Stakes and investments
₩1.4B
Associates, long-term financial assets and deposits (book value)
− Minority interests
₩5B
Shares
63,723,489
Share price
₩32,450
Market cap
₩2.1T

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₩779B₩1.2T₩1.1T₩1.3T₩1.5T₩1.6T₩1.6T₩1.7T
Growth−1.1%55.9%−12.1%10.6%8.7%6.8%4.9%3.0%
EBIT₩49B₩109B₩1.1B₩70B₩76B₩81B₩85B₩88B
EBIT margin6.3%9.0%0.1%5.2%5.2%5.2%5.2%5.2%
After-tax EBIT₩36B₩79B₩831M₩51B₩55B₩59B₩62B₩64B
+ Depreciation₩78B₩1.3B₩105B₩89B₩97B₩103B₩108B₩111B
− Capital spending₩164B₩180B₩296B₩285B₩310B₩331B₩347B₩358B
− Working capital−₩218B₩599B₩38B₩52B₩47B₩40B₩31B₩20B
Free cash flow₩167B−₩698B−₩229B−₩197B−₩205B−₩209B−₩208B−₩202B
Discount factor———0.9330.8710.8120.7580.707
Present value———−₩184B−₩179B−₩170B−₩158B−₩143B

Terminal value ₩768B, worth ₩543B today: -187% 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 ₩15,481 a share)Now 2.10×₩25,7201.66×₩33,9872.20×₩59,1383.82×

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%
6.2%—————
6.7%—————
7.2%—————
7.7%—————
8.2%—————

Now (TTM)

Market cap
₩2.1T
Enterprise value
₩3.4T
P/E
—
P/B
2.1×
P/S
1.7×
EV/EBITDA
34.1×
Dividend yield
0.0%

Over time (at each year end)

20252024202320222021
Price₩25,300₩26,850₩18,140₩17,500₩21,628
Market cap₩1.6T₩1.7T₩1.2T₩1.1T₩1.4T
P/E—20.3×—692.1×35.7×
P/B2.2×2.0×2.3×2.1×3.8×
P/S1.5×1.4×1.5×1.4×2.3×
EV/EBITDA26.1×22.7×12.2×14.6×16.9×
Dividend yield0.0%————

Versus similar companies

CompanyP/EP/BP/SEV/EBITDADividend yield
Seojin System—2.1×1.7×34.1×0.0%
LS Electric63.5×11.6×4.3×39.3×0.0%
Hyosung Heavy Industries31.8×7.2×2.9×—0.4%
HD Hyundai Electric19.6×7.4×3.8×—0.0%
Gaon Cable117.0×14.2×2.6×61.1×0.0%
Sanil Electric27.9×7.6×8.5×—0.8%
Taihan Cable & Solution—2.3×1.0×—0.0%
Similar companies (median)31.8×7.5×3.4×50.2×0.0%

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

Also known as: Seojin System / 서진시스템 / 178320 / KRX:178320

Source: KRX statistical information