Marl

The Marl chemical park is located in the Northern Ruhr area of Germany.

The Marl Chemical Park is the third largest integrated industrial site in Germany and hosts eighteen different companies. At Marl, INEOS Cumene operates a 750,000 te/a cumene plant on behalf of INEOS Phenol. Production of cumene first started in 2022. The raw materials for the plant (benzene, propylene) are shipped to the site via pipeline, barge and railcar. Our Marl operations comply with the current versions of the international standards ISO 14001 and ISO 50001.

INEOS Solvents Marl GmbH is also located at the Marl Chemical Park.

In 1993 the old acetylene plant from 1939 was put out of service, and a new, state-of-the-art acetylene plant was put into operation. In 2007 a new plant for the production of 2-Butenediol (B2D) with a capacity of a 3,500 metric tons per year was put into operation.

The plant was running at capacity already in the first year of operation. In the midst of the global financial and economic crisis in 2009, the 2,000,000th metric ton butanediol was produced. ISP Inc. was acquired by Ashland Inc. (ASH) in August 2011. In 2014 a new formaldehyde plant with a capacity of 54,000 metric tons per year was opened at ISP Marl GmbH with the aim to secure the supply of raw materials.

In November 2018, INEOS Enterprises announced the completion of the acquisition of the entire composites business of Ashland Global Holdings Inc., including the Ashland production facilities at Marl Chemical Park. Since 1st September the former ISP MARL GmbH is now operating as INEOS Solvents Marl GmbH.

INEOS Enterprises completed the sale of its composites business to KPS Capital Partners in March 2025.

INEOS Solvent is currently producing at the Marl Plant: