YeSUN Tech (250930): Korean Materials stock

What the company does

YeSUN Tech makes functional adhesive materials, specialty bonding and protective tapes used in display panels, vehicles, and large-format rechargeable batteries.

Its products supply manufacturers across the display industry (both LCD and OLED panels), the automotive sector, and the energy storage market. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, the company operates its adhesive materials business through subsidiaries in China, Vietnam, and Indonesia in addition to its Korean parent.

Summary is AI-generated and may contain errors · figures from DART filings

Financials

Source: DART · FY ending Dec · latest FY2025

Revenue · FY2025

US$27.4M

▼ −13.2% YoY

Operating profit · FY2025

−US$589.5K

Loss narrowed

Net income · FY2025

−US$547.5K

Loss narrowed

Revenue, operating profit and net income by fiscal year (USD; KRW in parentheses).
Metric	FY2023	FY2024	FY2025
Revenue	US$32M(₩44.1B)	US$31.6M(₩43.6B)	US$27.4M(₩37.9B)
Operating profit	−US$6.4M(−₩8.8B)	−US$2.3M(−₩3.2B)	−US$589.5K(−₩813.4M)
Net income	−US$7.4M(−₩10.2B)	−US$4.3M(−₩6B)	−US$547.5K(−₩755.5M)

Revenue

FY2023US$32M
FY2024US$31.6M
FY2025US$27.4M

Operating profit

FY2023−US$6.4M
FY2024−US$2.3M
FY2025−US$589.5K

Net income

FY2023−US$7.4M
FY2024−US$4.3M
FY2025−US$547.5K

Key ratios (FY2025)

ROE

-4.9%

Debt/Eq

232.8%

Op. margin

-2.1%

Net margin

-2.0%

Rev. YoY

▼ −13.2%

Why it matters · Context, not a recommendation

The group is structured as a parent company with wholly operated subsidiaries, Guangzhou YeSUNTech, Suzhou YeSUNTech, Vietnam YeSUNTech, and Indonesia YeSUNTech, all engaged in the same core adhesive materials business.

Filings

All disclosures · English when translated

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