The Firm is representing Covanta, a portfolio company of EQT, in connection with it entering into a definitive agreement to acquire Circon Environmental, a portfolio company of Kinderhook Industries. The transaction, which marks Covanta’s largest single acquisition in two decades, is subject to customary regulatory approvals. Financial terms of the transaction were not disclosed.~~Covanta is a leader in sustainable materials management providing environmental services to businesses and communities. Through its network of facilities and state-of-the-art services, Covanta is a single-source partner in solving today's most complex environmental challenges.~~Circon is a sustainability-focused full-service provider of environmental services with a customer base across more than 20 waste facilities in the Midwest, Southeast and Gulf Coast. Circon offers a suite of circularity focused offerings in wastewater treatment, and non-hazardous and hazardous waste management.~~The Simpson Thacher team includes Michael T. Holick, Mark Myott, Shaneel Parikh, Robert Hausen and Christian Sheets (M&A); Eli Isak and Callie Robins (Credit); Jonathan Goldstein and Andrew L. Mandelbaum (Tax); David Rubinsky, Ryan Stott and Joshua E. Stephens (ECEB); Timothy K. Mulvihill, Noreen Lavan and Deepa Sarkar (Environmental); Jessica Cohen (IP); and Krista McManus (Property).