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457190KOSPI

ISU Specialty Chemical

81,100
+2,700 (+3.44%)

Price chart

  • MA5
  • MA20
  • MA60

Adjusted prices rescale past bars with coefficients taken from the base prices the exchange itself published, correcting for corporate actions such as stock splits and reverse splits. Cash dividends are not reflected, and the risk measures on this page never use these adjusted figures.

Market capitalizationKRW 1T

Each day's close multiplied by the listed share count of this share class alone, sampled weekly. It is the figure for this issue only, not a combined total across common and preferred shares.

Overview

Summary

ISU Specialty Chemical was established on May 1, 2023, through a spin-off from ISU Chemical. The company is headquartered in Seoul and is listed on the KOSPI market.

The company operates in fine chemicals and all-solid-state battery materials. Its main products include TDM, NOM, NDM, IPA, special solvents, and lithium sulfide. It distributes these products through its plants in Ulsan, a Japanese subsidiary, and a representative office in Shanghai.

Business overview as filed

주식회사 이수스페셜티케미컬(이하 "당사")은 정밀화학 및 전고체전지소재 사업부문의 사업경쟁력 강화 및 전문화된 사업영역 역량 집중을 통한 경영효율성 증대 등을 목적으로 2023년 5월 1일을 분할기일로 하여 분할회사인 주식회사 이수화학으로부터 인적분할의 방법으로 설립되었습니다. TDM, NOM/NDM, IPA, Special Solvent 등 정밀화학제품의 생산 및 판매업과 전고체 배터리에 사용되는 고체전해질의 원료인 황화리튬(Li2S)을 생산, 판매하는 전고체전지소재 사업부문을 주요 영업으로 하고 있으며, 당기말 현재 울산지역 공장과 일본 해외법인, 상해대표처를 두고 있습니다. 또한, 정밀화학제품 등의 생산과 유통의 일원화를 통한 경영효율성 증대, 시너지 강화를 통한 시장 경쟁력 강화 등을 목적으로 2024년 4월 1일을 합병기일로 하여 (주)이수엑사켐의 정밀화학을 포함한 사업부문을 분할하여 당사에 흡수합병하는 소규모 분할합병을 완료했습니다.당사는 2023년 5월 설립 이후 2023년 매출액 1,175억원을 달성했고, 2024년 매출액 3,321억원 및 영업이익 142억원을, 2025년에는 매출액 4,115억원 및 영업이익 16억원을 기록했습니다. 향후에도 지속적인 제품개발 및 품질향상을 통한 고객만족 확대 등을 바탕으로 향후에도 사업경쟁력을 강화하고 글로벌 시장을 선도해 나갈 계획입니다.

Company overview

가. 연결대상 종속회사 개황

(1) 연결대상 종속회사 현황(요약)

주요 종속회사 판단기준 : 최근 사업연도말 자산총액 750억원 이상 또는 지배회사 자산총액의 10% 이상(2) 연결대상회사의 변동내용

나. 회사의 법적ㆍ상업적 명칭

당사의 명칭은 주식회사 이수스페셜티케미컬이라고 표기합니다. 또한 영문으로는 ISU SPECIALTY CHEMICAL CO., LTD.로 표기합니다. 단, 약식으로 표기할 경우에는 (주)이수스페셜티케미컬 또는 ISU SPECIALTY CHEMICAL CO., LTD.로 표기합니다.

다. 설립일자 및 존속기간

당사는 분할회사인 주식회사 이수화학에서 2022년 11월 29일에 개최된 이사회 결의와 2023년 3월 31일 개최된 정기주주총회의 결의에 따라 2023년 5월 1일을 분할기일로 인적분할하여 설립되었습니다. 당사는 2023년 5월 2일 주식회사 이수스페셜티케미컬로 신설법인 설립등기 하였으며, 2023년 5월 31일 한국거래소에 재상장되었습니다.

라. 본사의 주소, 전화번호, 홈페이지 주소

- 주 소 : 서울특별시 서초구 사평대로 84(반포동)- 전화번호 : 02-590-6880- 홈페이지 : http://www.isuspecialtychemical.com

마. 중소기업 등 해당 여부

바. 주요 사업의 내용 및 향후 추진하려는 신규사업

당사는 분할회사인 (주)이수화학에서 분할되어 신설되었으며, 정밀화학제품의 제조 및 판매, 전고체전지 소재 제조 및 판매 등의 사업을 영위하고 있습니다.당사는 전고체배터리에 사용되는 황화물계 고체전해질의 핵심 원료인 황화리튬(Li2S) 시제품 생산을 위해 2021년 11월 데모설비 구축을 시작, 2022년 11월 연산 20톤 규모의 데모 생산설비를 준공하였습니다. 또한, 황화리튬에 대한 선제적 수요 확보를 위해 2022년 4월 에코프로비엠, 6월 美Solid Power 및 8월에 희성촉매와의 업무협약(MOU)을 체결하였습니다. 그리고 2023년 4월 중 미국 기술엔지니어링 회사인 KBR(Kellogg Brown & Root, 켈로그브라운앤루트)과 전고체 배터리 소재 황화리튬(Li2S)의 상업공정 공동 개발 계약을 체결하였습니다. 2023년 11월에는 고객 수요 대응 목적으로 최적화 공법이 적용된 연산 20톤 규모의 추가 데모설비 투자를 개시하여, 2024년 5월 데모플랜트 증설을 완료하였습니다. 이어 2024년 2월에는 롯데에너지머티리얼즈, 10월에는 동화일렉트로라이트와 업무협약(MOU)을 체결하였습니다. 현재 데모플랜트에서 생산한 샘플 제품을 국내외 주요 고객사에 공급하고 있으며, 2025년 8월에는 황화리튬 사업의 본격적인 상업화를 위해 Mother Plant 구축 투자를 확정하고 플랜트 건설을 진행 중입니다. 해당 설비는 연산 500톤 규모의 기반설비와 초기 연산 150톤 규모의 생산설비입니다.

사. 신용평가에 관한 사항

당사는 인적분할되어 설립된 이후 공시대상기간 동안 신용평가회사로부터 신용평가를 받은 내역이 없습니다.

아. 회사의 주권상장(또는 등록ㆍ지정) 및 특례상장에 관한 사항

Transcribed verbatim from the sentences the filer wrote in the fiscal 2025 business report (received 2026.03.19), tables and figures omitted.

  • The summary is written separately from the filed text and is not the filer's wording, so it may phrase things differently from or omit parts of the original, which is shown alongside for checking.
  • The company introduction reproduces the sentences the filer wrote in its business report, with tables, figures and the sentences that point to other sections of the report omitted, and the accuracy of their content has not been separately verified.

VaR

5.36%
[3.25%, 8.78%] · As of 2026-09-29
VaR by window

The headline's measure for each of the three windows on one scale, the dot being the estimate and the bar its interval. The windows are nested and share their observations, so the three readings are not three independent measurements. The selected window is highlighted.

Daily return distribution

The issue's daily returns over the chosen window counted into equal-width bins. The vertical lines mark the VaR and cVaR above on the loss side. The published VaR sample applies exclusion rules for halts and first sessions that this raw daily series does not, so the bars and the marks can differ slightly at the edges.

Drawdown

Deepest drawdown 63.6% (2026-07-30). How far below its previous peak the issue stood each day over the chosen window, a description of the path already travelled.

If these numbers are unfamiliarThere is a guide that walks through VaR, cVaR and annualized volatility in plain language.Read the guide

Characteristic line

0.69
Beta [0.52, 0.86] · KOSPI200 · As of 2026-10-02
Intercept
+0.072%[-0.536%, +0.680%]
R squared
0.23
Observations
252
Trading-time corrected beta
0.70[0.42, 0.98]
252-day rolling beta

A 252-day window rolled one day at a time over the longest daily span of the characteristic line. It shows when the beta against the KOSPI200 and the annualized volatility of the issue's excess return rose and fell, and unlike the headline figures above it carries no interval.

252-day rolling annualized volatility

Each point is one period's index excess return and issue excess return, and the line is the regression fitted to those points. The risk-free rate is the certificate of deposit rate.

Financials

2023Separate basis2024Separate basis2025Consolidated basisTTMConsolidated basis
RevenueKRW 100M1,1753,3214,1154,295
Revenue growth%—182.54——
Operating incomeKRW 100M-6114216114
Net incomeKRW 100M-62105866
Attributable to ownersNot applicableNot applicableNot applicableNot applicable
Attributable to minoritiesNot applicableNot applicableNot applicableNot applicable
Operating margin%-5.214.280.392.65
Net margin%-5.283.170.191.54
ROENot applicableNot applicableNot applicableNot applicable
ROA%-2.853.510.211.59
Debt ratio%129.46146.23175.80201.07
Current ratio%75.8385.9269.3467.39
Quick ratio%27.5945.7437.8036.11
Reserve ratio%219.18284.06302.59320.80
Free cash flowKRW 100M182395-445—
FCF margin%15.4711.88-10.81—
OCF conversion%—100.77603.15—
Capex to revenue%-5.29-8.6911.93—
Inventory daysdays—77.8——
EPSKRW-1,12435826—
PERx—87.852,276.92—
BPSKRW——4,3984,583
PBRx——13.4615.60
Dividend per shareNot applicableNot applicableNot applicableNot applicable

Profit flowKRW 100M

This fiscal year shows a loss at gross profit, operating income, profit before tax or net income, so it is left to the table rather than drawn as a flow.

This diagram traces where revenue goes at each step on its way to net income, using the filed amounts as they are. The non-operating result is taken as the difference between profit before tax and operating income and is shown as income or expense by its sign, and whatever a step's items leave unexplained is shown separately as other.

Revenue compositionKRW 100M

Margins%

Cash flow by activityKRW 100M

Balance sheet compositionKRW 100M

Debt ratio%

The left bar splits assets into current and non-current and the right bar splits the financing of those assets into liabilities and equity, so the two bars stand at the same height.

Quarterly resultsKRW 100M

Each quarterly bar is that quarter's three months and is never mixed with an annual figure. The growth rate is computed only where the same quarter a year earlier is also shown here, and is left blank when the base was a loss.

Free cash flow breakdownKRW 100M

Free cash flow is cash from operating activities less spending on property, plant and equipment, and all three bars keep the sign as filed.

Owners' net margin%

Asset turnoverx

Financial leveragex

ROE%

ROE is the product of the owners' net margin, asset turnover and financial leverage. All three use period-end balances as denominators, and profit and equity are on the owners' basis, so the product matches the ROE in the table.

Financial statements

Balance sheet

202320242025
2,1802,9953,664
1,2301,7792,336
9501,2171,329

Income statement

202320242025
1,1753,3214,115
-6114216
-9374-41
-621058
Basic earnings per shareKRW-1,124*35826
Diluted earnings per shareKRW-1,124*35125
-779011

Cash flow statement

202320242025
Net incomefrom the income statement-621058
Total adjustments to operating cash flowcomputed182139
12010646
-192316-689
53-261609
Cash at beginning of periodKRW 100M145124300
124300263
Net change in cash and cash equivalentsKRW 100MNot applicableNot applicableNot applicable

In the latest fiscal year operating and financing activities brought cash in while investing activities spent it.

A year whose own filing is absent is filled from the restated comparative in the following filing, and is marked as such. Operating indicators outside the statements, such as order backlogs, and audit opinions are not covered here, and per-share figures follow the filed values without retroactive adjustment for share splits.

Transcribed verbatim from the sentences the filer wrote in the fiscal {year} business report (received {date}), with tables, figures and cross-references to other sections omitted.

The newest annual filing shown was received on 2026.03.19.

Audit opinion

Fiscal yearOpinionAuditorFiscal year end
2025적정의견Term 3삼정회계법인2025-12-31
2024적정의견Term 2삼정회계법인2025-12-31
2023적정의견Term 1삼정회계법인2025-12-31

The auditor's name and the opinion are transcribed verbatim from the filed audit report, and the wording follows the filer. A fiscal year shown twice means the filing carried two entries that the source does not distinguish.

Korean audit opinions come in four kinds, where an unqualified opinion (적정) finds the statements fairly presented, a qualified opinion (한정) does so except for a stated matter, an adverse opinion (부적정) finds them not fairly presented, and a disclaimer of opinion (의견거절) means the auditor could not obtain enough evidence to form a view.

Valuation

Valuation multiplesx

PER and PBR divide each period's closing price by the per-share figure filed for that same period, and a loss period is left blank. The quarterly view is a multiple of quarterly EPS.

Valuation models

Five models priced under one set of assumptions, set beside the current price, with how each has moved by fiscal year.

Assumptions

Risk-free rate10-year treasury yield · 2026-10-024.37%
BetaDaily 1Y0.69
%
%
Cost of equity7.83%
Weighted average cost of capital—
Initial growth2.0%
Effective tax rate0.0%
Base fiscal year2025
Current priceKRW81,100

The risk premium and the terminal growth rate are adjustable assumptions, and the rest follow from the data and the formulas.

ModelModel priceKRWVersus current price
Gordon growth modelNo dividend
Dividend discount model DDMNo dividend
Discounted cash flow FCFFBase-year cash flow not positive
Discounted cash flow FCFEBase-year cash flow not positive
Residual income model RIMNo book value or return on equity
The table prices the newest fiscal year's accounts at today's treasury yield and the current price.

Dividend and residual income familyKRW

Discounted cash flow familyKRW

Each fiscal year's figures use that year's accounts and the treasury yield at its period end, with beta held at its current value, and splits or par changes are restated to the current share basis.

How the figures are calculated

Each model's formula is shown in symbols and then with this issue's own numbers substituted, step by step. Changing a value in the assumptions panel changes the numbers here too. Firm-level amounts are in hundred million won and per-share values in won.

Cost of equity

r=rf+β×ERPr = r_f + \beta \times \mathit{ERP}

r = 4.37% + 0.69 × 5.00% = 7.83%

Initial growth

g1=max⁡{ROE×(1−payout), 0},gt=g1+(gT−g1) t−1N−1g_1 = \max\{\mathit{ROE} \times (1 - \text{payout}),\,0\},\qquad g_t = g_1 + (g_T - g_1)\,\frac{t-1}{N-1}

g_1 = g_T = 2.00%

The cost of equity is the risk-free rate plus beta times the equity risk premium. Initial growth is the newest fiscal year's return on equity times its retention ratio, floored at zero, and falls by equal steps from that value in the first year to the terminal rate in the fifth. Only the Gordon model grows at the terminal rate from the start. Discounted cash flow starts from operating cash flow less capital expenditure, where FCFF adds after-tax interest paid and discounts at the weighted average cost of capital, and FCFE adds net borrowing and discounts at the cost of equity. The residual income model adds to book value per share the present value of earnings above the equity charge.

Other issues on the same market

Neighbours in the market capitalisation order.

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