Simpson Thacher is representing Harsco Corporation in connection with its definitive agreement to acquire the parent of Clean Earth, Inc. from Compass Group Diversified Holdings for $625 million. The transaction is expected to close in the next few months, subject to customary closing conditions, including regulatory approval.~~Harsco Corporation is a diversified industrial company providing a range of onsite services and engineered products to the global steel, aluminum, energy and railway sectors.~~Clean Earth, Inc. is one of the largest specialty waste processing companies in the U.S. providing processing and beneficial reuse solutions for hazardous wastes, contaminated materials and dredged volumes.~~The Simpson Thacher team for the transaction includes Mario Ponce, Johanna Mayer, Michael Chao, Sara Park, Christopher Scavone and Joshua Harris (M&A); Andrew Blau, Caitlin Lucey and Aria Mahboubi (Employee Benefits); John Creed and Sophie Staples (Tax); Lori Lesser and Alysha Sekhon (Intellectual Property); Steve DeLott (Insurance); Mike Isby and Timothy Mulvihill (Environmental); Sara Razi, Peter Thomas and Joshua Hazan (Antitrust); and Krista McManus and Timothy Gallagher (Real Estate).