M&A Deal Summary

Ecovyst Acquires Cornerstone Chemical - Sulfuric Acid Assets

On March 18, 2025, Ecovyst acquired chemicals company Cornerstone Chemical - Sulfuric Acid Assets from Cornerstone Chemical

Acquisition Highlights
  • This is Ecovyst’s 1st transaction in the Chemicals sector.
  • This is Ecovyst’s 1st transaction in the United States.
  • This is Ecovyst’s 1st transaction in Louisiana.

M&A Deal Summary

Date 2025-03-18
Target Cornerstone Chemical - Sulfuric Acid Assets
Sector Chemicals
Buyer(s) Ecovyst
Sellers(s) Cornerstone Chemical
Deal Type Divestiture

Target

Cornerstone Chemical - Sulfuric Acid Assets

Waggaman, Louisiana, United States
Cornerstone Chemical's Sulfuric Acid Assets include facilities for the production of virgin sulfuric acid, which is a critical industrial chemical used in refining, mining, and chemical manufacturing. Cornerstone Chemical's Sulfuric Acid Assets is based in Waggaman, Louisiana.

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Buyer(S) 1

Buyer

Ecovyst

Malvern, Pennsylvania, United States

Category Company
Founded 1831
Sector Chemicals
Employees920
Revenue 704M USD (2024)
DESCRIPTION

Ecovyst is a worldwide producer of specialty inorganic performance chemicals, high-end catalysts and engineered glass beads for the consumer, oil & gas, transportation safety, specialty plastics and industrial markets. Ecovyst was founded in 1831 and is based in Malvern, Pennsylvania.


DEAL STATS #
Overall 1 of 1
Sector (Chemicals) 1 of 1
Type (Divestiture) 1 of 1
State (Louisiana) 1 of 1
Country (United States) 1 of 1
Year (2025) 1 of 1
PREVIOUS DEAL
DATE TARGET DEAL TYPE VALUE
2021-03-01 PQ Performance Chemicals

Malvern, Pennsylvania, United States

PQ Performance Chemicals is a global supplier of silicate and derivative products that serve as environmentally friendly substitutes for materials used in a variety of applications. These include end uses such as matting agents in surface coatings, clarifying agents for edible oils and beverages, additives to paints and coatings for thermal insulation, and sensory particles in personal care products to improve feel attributes.

Sell $1.1B

Seller(S) 1

SELLER

Cornerstone Chemical

Waggaman, Louisiana, United States

Category Company
Founded 1952
Sector Chemicals
Employees460
DESCRIPTION

Cornerstone Chemicals is a producer of a group of high-value intermediate chemicals, including acrylonitrile, melamine, sulfuric acid and diesel exhaust fluid. The company manufactures its products in multiple plants on its owned and highly-integrated 800-acre chemical complex. Cornerstone Chemical was established in 1952 and is headquartered in Waggaman, Louisiana.


DEAL STATS #
Overall 1 of 1
Sector (Chemicals) 1 of 1
Type (Divestiture) 1 of 1
State (Louisiana) 1 of 1
Country (United States) 1 of 1
Year (2025) 1 of 1