Enviri Corporation Watch

from SCHEDULE 13D 3 pages In Accordance With Rule 13d-1(k)(1)(iii) Under the Securities Exchange Act of 1934, as Amended, Each of the Undersigned Hereby Agrees That the Schedule 13d Filed Herewith Is Filed Jointly. This Agreement May Be Executed in Any Number of Counterparts All of Which When Taken Together Shall Constitute One and the Same Instrument. in Witness Whereof, the Undersigned Hereby Execute This Agreement This 30th Day of December 2024. Neuberger Berman Group LLC /S/ Joseph Amato By: Joseph Amato President Neuberger Berman Investment Advisers Holdings LLC /S/ Heather Zuckerman By: Heather Zuckerman Executive Vice President Neuberger Berman Investment Advisers LLC /S/ Joseph Amato By: Joseph Amato President - Equities Neuberger Berman Canada Holdings LLC /S/ Raymond Carroll By: Raymond Carroll Chief Investment Officer Nb Acquisitionco Ulc /S/ Raymond Carroll By: Raymond Carroll Chief Investment Officer Neuberger Berman Canada Ulc /S/ Raymond Carroll By: Raymond Carroll Chief Investment Officer /S/Benjamin Nahum Benjamin Nahum /S/Michael Greene Michael Greene /S/Rand Gesing Rand Gesing

from 8-K 35 pages Dated September 15, 2010 Underwriting Agreement Relating to US$ 250,000,000 Harsco Corporation 2.700% Senior Notes Due 2015

from 8-K 34 pages Dated May 12, 2008 Underwriting Agreement Relating to US$450,000,000 Harsco Corporation 5.75% Senior Notes Due 2018

from 8-K 34 pages Harsco Corporation 5.125% Senior Notes Due September 15, 2013 Underwriting Agreement

from 11-K 1 page Exhibit 1 Consent of Independent Accountants We Consent to the Incorporation by Reference in Post Effective Amendment No. 2 to Form S-8 Registration Statement (Registration No. 33-5300) of Our Report Dated July 13, 1995, on Our Audits of the Net Assets Available for Benefits of the Harsco Corporation Savings Plan as of December 31, 1994 and 1993, and the Changes in Net Assets Available for Benefits for the Year Ended December 31, 1994. Our Report, Which Includes (A) an Emphasis of a Matter Paragraph Regarding (I) the Merger of the Harsco Corporation Savings Plan II Into the Harsco Corporation Savings Plan, the Merger of the Sherwood Selpac Corporation Profit Sharing Thrift Plan Into the Harsco Corporation Savings Plan and the Transfer of Bmy-Combat Systems Division Participants Out of the Harsco Corporation Savings Plan (And Their Respective Account Balances), and (B) Explanatory Paragraphs Regarding (I) Supplemental Schedules and Fund Information and (II) Information Provided by the Trustee and Presented in the Schedules of Investments and Reportable Transactions Does Not Disclose the Historical Cost of Certain Plan Assets, and (III) a Change in Method of Accounting for Participant Withdrawals in 1993 Appears in This Annual Report on Form 11-K. Coopers & Lybrand L.L.P. Philadelphia, Pennsylvania July 13, 1995

from S-3 ~20 pages Underwriting agreement