Ecovyst Inc.

Ecovyst is a leading sulfuric-acid regeneration/virgin-acid provider with strong margins and cash generation despite a GAAP net loss.

Strengths

• #1/#2 supply share on >95% of sales; ~90% of sales under quarterly price-adjustment contracts
• Strong operating margin (9%, 82nd pct), FCF margin (9.7%, 88th pct) and OCF margin (19%, 75th pct)

Risks

• GAAP net loss (net margin -9.8%) and negative ROE (-11.8%) after divestiture/one-off impacts
• Moderate leverage (D/E 0.65) and customer concentration (top-10 ~61% of sales)

Notable findings

• Debt accelerationRecent 8-K item 2.04 8-K ↗
• Exec changeRecent 8-K item 5.02 8-K ↗
• Net lossNet loss (net margin -9.8%)
• Customer concentration~90% of revenue from one customer/distributor — About 90% of our sales for the year ended December 31, 2025 were under contracts featuring quarterly price adjustments
• Buying back stockNet buyback — share count -3%/yr over 4y
• Strong balance sheetStrong balance sheet — $197M cash & investments
• China exposureOur operations require us to comply with anti-corruption laws, economic sanctions, export controls and similar laws and regulations of the U