Amid controversy over compatibility filter quality, an opportunity: Clean & Science to add overseas sales to domestic base
Predicted impact: Low
Overseas sales expansion idea is vague; no size or contract figures given.
Clean & Science크린앤사이언스
045520 · KOSDAQ · ₩045520 · 크린앤사이언스
₩2,510▼ ₩60 (2.33%)End-of-day · Oct 29, 2026 · End-of-day prices.
Price · 1Y −33.07%
- Market cap
- ₩16B
- Enterprise value
- ₩44B
- P/E
- —
- P/B
- 0.9×
- Dividend yield
- 0.0%
- ROE
- −11.1%
- Net margin
- −2.4%
Trailing 12 months from filed financial statements, as of H1 2026. Dividend yield: the 2025 dividend per share from the annual report ÷ today's price.
52-week range−47.0% from the high
₩2,110Today: ₩2,445 – ₩2,610₩4,740
Returns
- 1W−21.6%
- 1M−28.1%
- 3M+11.6%
- 6M−25.2%
- YTD−27.7%
- 1Y−33.1%
- Volume today
- 21,794
- 1.2× the 20-day average
- Traded today
- ₩55M
- Listed shares
- 6,500,000
- EPS (12 months)
- −₩310
- Earnings yield −12.3%
AI researchResearch being writtenOur AI is writing a report on this company from filed data, prices and news. Check back soon.
Upcoming dates
Full calendar →🎁 Gift this stock
Send a friend ₩100,000 of paper money in this stock. They get it when they join.
Signals
Normal- BuzzNormalBuzz 45 of 100 (50 is a normal day for this stock).
- SentimentMixedNews: Quality controversy is weighed against a possible overseas growth opportunity. Community: 0 bullish, 0 bearish posts this week.
- MomentumWeak-28% over the last month; the price is below its 20-day average.
- News impactLow2 news items and filings in two weeks; 0 rated high impact, 0 medium.
Signals describe activity, not recommendations. Not financial advice.
Clean & Science stock overview
Clean & Science (크린앤사이언스, KRX: 045520) is listed on KOSDAQ, in the Machinery sector. Keen & Science (Chrin & Science) is a South Korean filtration company founded in 1979 that specializes in producing automotive and industrial filter media and finished filters. Its shares closed at ₩2,510 on Oct 29, 2026, down 2.33% on the day, giving it a market value of ₩16B.
Key facts
- Market cap
- ₩16B
- Sector
- Machinery
- Latest price change
- −2.33%
- As of
- Oct 29, 2026
- Main business
- Keen & Science (Chrin & Science) is a South Korean filtration company founded in 1979 that specializes in producing automotive and industrial filter media and finished filters.
Quick answers about Clean & Science
- What does Clean & Science do?
- Keen & Science (Chrin & Science) is a South Korean filtration company founded in 1979 that specializes in producing automotive and industrial filter media and finished filters. Its main products include thermoplastic and thermosetting filter paper for automotive oil, fuel and air filters, filters for home appliances such as air purifiers, industrial filters for gas turbines and machine tools, and melt-blown media used in HVAC and medical applications. The company operates a production site in Jeongeup, North Jeolla Province, and has overseas subsidiaries in the United States, China and Thailand, and a branch in Japan, with sales to automakers and export customers in Southeast Asia and other markets.
- What is the market cap of Clean & Science?
- The market capitalisation of Clean & Science was ₩16B at the close on Oct 29, 2026.
- Who are the largest shareholders of Clean & Science?
- According to the latest official filings, the largest reported holders are Choi Jae-won (14.34%, as of Sep 23, 2026); Delta PDS (12.78%, as of Oct 2, 2026); Choi Jae-ho (8.04%, as of Oct 23, 2026).
- When is the next earnings report from Clean & Science?
- Korean companies rarely announce results dates in advance. Based on when Clean & Science filed the same report in past years, its next 3q results is expected around Nov 14, 2026.
- Does the National Pension Service own Clean & Science?
- Yes. The National Pension Service held 0.05% of Clean & Science shares as of Dec 31, 2021.
Company profile
Keen & Science (Chrin & Science) is a South Korean filtration company founded in 1979 that specializes in producing automotive and industrial filter media and finished filters. Its main products include thermoplastic and thermosetting filter paper for automotive oil, fuel and air filters, filters for home appliances such as air purifiers, industrial filters for gas turbines and machine tools, and melt-blown media used in HVAC and medical applications. The company operates a production site in Jeongeup, North Jeolla Province, and has overseas subsidiaries in the United States, China and Thailand, and a branch in Japan, with sales to automakers and export customers in Southeast Asia and other markets.
Written by AI from the company's latest annual report.
- Korean name
- 크린앤사이언스
- Sector
- Machinery
- Themes
- —
- CEO
- 곽규범
- Founded
- Dec 1979
- Listed
- Dec 2000
- Listed shares
- 6,500,000
- Fiscal year ends
- Month 12
- Website
- www.cands.co.kr
Similar companies
- Doosan Enerbility034020 · ₩36T₩56,700−7.65%
- Hanmi Semiconductor042700 · ₩19T₩196,900−3.24%
- Jusung Engineering036930 · ₩8.2T₩177,000−4.58%
- Rainbow Robotics277810 · ₩7.3T₩378,000−6.55%
- EO Technics039030 · ₩5.1T₩415,000−0.84%
- Doosan Bobcat241560 · ₩4.7T₩49,150−0.61%
- Wonik IPS240810 · ₩4.7T₩95,900−3.62%
- PSK Holdings031980 · ₩4.2T₩194,200+0.62%
Recent news
Recent filings
See all- Insider shareholding reportOct 23, 2026
- Insider shareholding reportOct 16, 2026
- Other Market NoticeOct 7, 2026
- Insider shareholding reportOct 2, 2026
- Trading Plan Report for Executives and Major Shareholders' Specific SecuritiesOct 1, 2026
Titles in Korean until English translations are added.
Also known as: Clean & Science / 크린앤사이언스 / 045520 / KRX:045520
Source: KRX statistical information