Sangbo
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
SANGBOCo makes coated films, thin plastic sheets applied to car and building windows to block heat, infrared and ultraviolet light, and to hold glass together if it shatters.
It also supplies paint-protection film (PPF), a clear layer applied to vehicle surfaces to guard against scratches and contamination. Listed on KOSDAQ, Korea's tech and small-cap board, the company draws the majority of its revenue from these window and protection films, split between domestic and export markets. It is also developing barrier films used in quantum-dot displays and electronic shelf-label technology as a newer business line.
Summary is AI-generated and may contain errors · figures from DART filings
Sangbo in five facts
What does Sangbo do?
SANGBOCo makes coated films, thin plastic sheets applied to car and building windows to block heat, infrared and ultraviolet light, and to hold glass together if it shatters.
Where is Sangbo listed and in which sector?
Sangbo (Korean name: 상보) trades under KRX code 027580 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Materials sector, Chemicals.
How large is Sangbo?
Its market capitalisation was US$15.1M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were Sangbo's latest annual revenue and operating profit?
For fiscal year 2025, Sangbo reported revenue of US$37.8M, an operating loss of US$6.7M and a net loss of US$9.9M, per its annual report on DART (data retrieved from DART on 2026-09-08). Revenue was down 6.9% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-08
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- Executives/major shareholders' securities trading planOct 12
- Report on large shareholdings (5% rule) (standard)Oct 12
- Report on securities held by executives/major shareholdersOct 12
- Report on securities held by executives/major shareholdersOct 6
- Report on large shareholdings (5% rule) (standard)Sep 29
- Report on securities held by executives/major shareholdersSep 29
- Report on large shareholdings (5% rule) (standard)Sep 22
- Report on securities held by executives/major shareholdersSep 22
- Report on securities held by executives/major shareholdersSep 17
- Report on securities held by executives/major shareholdersSep 3
- Report on large shareholdings (5% rule) (standard)Sep 2
- Change of largest shareholder
Sangbo's largest shareholder changed from Kim Sang-geun and 3 others to Rayno Korea Co., Ltd. and the same 3 others, after a share transfer agreement between Kim Sang-geun and Rayno Korea covering 1,947,092 shares (16.45%); Rayno Korea financed US$1.83M of the acquisition by borrowing from Rayno Sector 1.
Ownership change · Aug 5 - Share transfer agreement that will change the largest shareholder
Sangbo's controlling stake is set to change hands from an individual to Rayno Korea Co., Ltd., in a deal worth US$1.78M.
Ownership change · Aug 3 - Trading suspension (share consolidation/split registration)M&A · Apr 22