Blog

DEEP RESEARCH · FOOSUNG

Foosung: A Materials-Cycle Turning Point in a Fragmenting Supply Chain

A review of LiPF6 electrolyte, semiconductor specialty gases, and Hantech chemical-equipment earnings defense.

Published: 2025-12-04 · Battery and semiconductor materials turnaround analysis · Naver Blog source

Investment decisions are your responsibility. This material is research and is not a recommendation to buy or sell.

0. Bottom line first

The key question is whether Foosung is moving beyond the 2023-2024 materials slump into a synchronized phase of LiPF6 price recovery, non-China supply-chain premium, semiconductor-gas expansion, and Hantech earnings support.

Official fact: The source describes Foosung as Korea's only LiPF6 electrolyte producer and a supplier of semiconductor specialty gases including C4F6 and WF6.

Interpretation: This is better viewed as a fluorine-chemistry portfolio spanning batteries, semiconductors, refrigerants, and chemical equipment, not only as a battery-cycle company.

Foosung's fluorine-chemistry portfolioWhere cycle recovery and supply-chain premium may combine
LiPF6Electrolyte and additives
Special GasC4F6 180 tons, WF6 400 tons
RefrigerantK-22 and stable cash flow
HantechChemical equipment and profit buffer
When chemical markets weaken, Hantech can buffer consolidated earnings.

1. Business structure

Battery

LiPF6 and additives

LiPF6 is the core salt in electrolyte. As Korea's only mass producer, Foosung is highly sensitive to raw-material and ASP spread changes.

Semi

C4F6 and WF6

C4F6 is used for 3D NAND oxide etching, while WF6 is used for contact and interconnect deposition. Ultra-high purity above 99.999% and customer qualification are entry barriers.

Refrigerant

Quota-based cash cow

Refrigerants such as K-22 benefit from limited new entry under environmental regulation and generate stable revenue within quotas.

Hantech

Consolidated earnings buffer

Hantech manufactures heat exchangers, reactors, and cryogenic tanks and has specialty non-ferrous metal processing capabilities.

2. Market change and competition

Official fact: The source states that Chinese producers had about 70-80% of the global LiPF6 market and pricing power.

  • Chinese competitors cited are Tinci Materials and Do-Fluoride New Materials.
  • Japanese competitors cited are Morita Chemical and Stella Chemifa, whose conservative expansion stance is seen as opening room for Foosung in North America.
  • The source's core price argument is that LiPF6 fell below RMB 70,000 per ton during China's 2023-2024 involution cycle, then rose 195% from late September to RMB 180,000 per ton in 2H25 as anti-involution policies and utilization cuts tightened supply.

Interpretation: The key is whether this is a temporary price rebound or a structural decoupling between Chinese domestic pricing and FEOC/IRA-qualified U.S. market pricing.

3. Earnings and investment projects

ItemSource figureMeaning
Cumulative 3Q25 revenueKRW 352.3BRevenue defended during a downturn
Cumulative 3Q25 operating profitKRW 20.5BTurned profitable from KRW -9.6B YoY
Hantech operating profitKRW 29.1BUp more than 73% YoY, offsetting chemical losses
Basic chemicals operating lossKRW -8.5BLoss narrowed from KRW -26.3B YoY
2026 estimateRevenue KRW 579.5B, OP KRW 41.7BAssumes LiPF6 ASP and semiconductor-materials recovery

The Central Glass JV is a project to build semiconductor-grade high-purity electrolyte and specialty-gas facilities in Ulsan. The source expects completion in 4Q25, mass production in 1H26, and semiconductor specialty gases to expand toward the mid-to-high 30% range of revenue.

4. Valuation and risks

  • From an SOTP perspective, Hantech is discussed as an asset capable of more than KRW 40B annual operating profit and worth roughly KRW 300B-400B under conservative assumptions.
  • After excluding Hantech value from Foosung's market cap, the source frames the core chemicals business as trading around 23x 2026E PER.
  • Main risks are renewed Chinese volume pressure, a falling KRW/USD rate, and rising fluorspar or lithium costs.

5. My conclusion

Foosung is a turnaround name where the end of crisis still needs confirmation. I would track LiPF6 price durability, the ramp speed of the Central Glass JV in Ulsan, Hantech earnings stability, and when long-term North American supply contracts convert into revenue.

Sources

Naver original