Common Stock, par value $1.25 per share

ENVIRI Corp

TWO LOGAN SQUARE, PHILADELPHIA, PA, 19103

This statement is being filed by the following persons: Neuberger Berman Group LLC ("NB Group"), Neuberger Berman Investment Advisers Holdings LLC ("NBIA Holdings"), Neuberger Berman Investment Advisers LLC ("NBIA"), Neuberger Berman Canada Holdings LLC ("NBCH"), NB Acquisitionco ULC ("NBAU"), Neuberger Berman Canada ULC ("NBCU," and together with NB Group, NBIA Holdings, NBIA, NBCH, NBAU, and NBCU, the "Neuberger Entities"), Benjamin Nahum, Michael Greene, and Rand Gesing (the Neuberger Entities together with Mr. Nahum, Mr. Greene, and Mr. Gesing, collectively the "Reporting Persons"). NBCH, NBAU, NBCU are included in this filing due to the common ownership with NBIA.

The business address for each of the Reporting Persons is 1290 Avenue of Americas, New York, New York 10104. The business address for NBIA with respect to the matters relating to the Issuer and its Securities is 1290 Avenue of Americas, New York, NY 10104. The business address for NBCU with respect to the matters relating to the Issuer and its Securities is Brookfield Place, Bay Wellington Tower, 181 Bay Street, Toronto, Ontario M5J 2V1.

Each of NB Group, NBIA Holdings, NBIA, and NBCH is a Delaware limited liability company. NBAU and NBCU is registered in British Columbia as an Unlimited Liability Company. Each of Mr. Nahum and Mr. Greene is a senior portfolio manager and managing director of NBIA. Mr. Gesing is a senior research analyst of NBIA. NB Group is the parent company of multiple subsidiaries engaged in the investment advisory business. NBIA Holdings is a subsidiary of NB Group and the holding company of NBIA, and certain other subsidiaries engaged in the investment advisory business. NBCH is a subsidiary of NB Group and the holding company of NBAU. NBAU is a holding company of NBCU. NBIA and NBCU are investment advisers registered under the Investment Advisers Act of 1940 as amended (the "Advisers Act"). As a registered investment adviser ("RIA"), NBIA provides investment advisory services to institutions, endowments, employee benefit plans, foundations, private funds, offshore public funds (collectively, "Institutions") and investment companies ("Mutual Funds") registered under the Investment Company Act of 1940, as amended. As an RIA, NBIA provides discretionary investment advisory services to private investors. NBIA may be deemed to beneficially own the Securities in its various fiduciary capacities by virtue of the provisions of Rule 13d-3 under the Securities Exchange Act of 1934 as amended ("Exchange Act"). As an RIA, NBCU provides discretionary investment advisory services to its clients. NBCU may be deemed to beneficially own the Securities in its various fiduciary capacities by virtue of the provisions of Rule 13d-3 under the Exchange Act. This report is not an admission that any of the Neuberger Entities or other Reporting Persons is the beneficial owner of the Securities and each of NB Group, NBIA Holdings, and NBIA and certain affiliated persons disclaim beneficial ownership of the Securities held by them in their fiduciary capacity and covered by this statement pursuant to Exchange Act Rule 13d-4. The information required by instruction C to Schedule 13D with respect to the directors and executive officers of the Neuberger Entities is set forth below. Neuberger Berman Group LLC Directors Joseph Amato Sharon Bowen Robert D'Alelio Michele Docharty Steven Kandarian George Walker Richard Worley Executive Officers George Walker, Chief Executive Officer Joseph Amato, President Andrew Komaroff, Executive Vice President and Chief Operating Officer Heather Zuckerman, Executive Vice President, Chief of Staff and Secretary William Arnold, Executive Vice President and Chief Financial Officer Michael Chinni, Treasurer Leo Anthony Viola, Controller Neuberger Berman Investment Advisers LLC Directors Joseph Amato Ashok Bhatia Kenneth deRegt Douglas Kramer Stephen Wright Executive Officers Joseph Amato, President - Equities and Chief Investment Officer - Equities Bradley Tank, President - Fixed Income and Chief Investment Officer - Fixed Income Kenneth deRegt, Chief Operating Officer - Fixed Income and Managing Director Paul Lanks - Chief Operating Officer - PWM Douglas Kramer, Head of Institutional Equity and Multi-Asset and Managing Director Brian Kerrane, Head of Mutual Fund Administration and Managing Director Brad Cetron, Chief Compliance Officer, Head of Compliance and Managing Director Michael Chinni, Treasurer Leo Anthony Viola, Controller Neuberger Berman Canada ULC Directors Joseph Amato Heather Zuckerman Ray Carroll Chris Neira Executive Officers Kashif Khan Chief Executive Officer Raymond Carroll Chief Investment Officer - Breton Hill William Arnold Chief Financial Officer Leo Anthony Viola Controller Florence Lasry Head of Tax Viviana Beltrametti Walker Chief Compliance Officer Barry Giarraputo Chief Financial Officer - Alternatives Brian Kerrane Head of Fund Administration Robert Arancio Head of Trading Linda Sharaby Secretary Frank Maeba Managing Director Simon Griffiths Managing Director Gideon Schapiro Managing Director

None of the Reporting Persons, nor to the Reporting Persons' knowledge, any of the individuals referenced above, has been party to a civil proceeding or a judicial or administrative proceeding or subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws in the past five years.

All of the individuals referenced above are citizens of the United States.

The aggregate number of Securities to which this Schedule 13D relates is 5,424,568 shares, representing 6.77% of the 80,135,155 common shares reported outstanding as of October 24, 2024 in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on October 31, 2024. The Reporting Persons beneficially own the Securities as follows: Common Shares / Percentage of Common Shares Outstanding NB Group 4,752,917 common shares / 5.90% NBIA 4,595,070 common shares / 5.73% NBCU 157,747 common shares / 0.20% Ben Nahum 425,000 common shares / 0.53% Michael Greene 116,700 common shares / 0.15% Rand Gesing 129,951 common shares / 0.16% Due to NB Group's and NBIA Holdings' indirect and direct ownership of NBIA, each of NB Group and NBIA Holdings is deemed to beneficially own the Securities beneficially owned by NBIA. Due to NB Group, NBCH and NBAU's indirect and direct ownership of NBCU, each of NB Group, NBCH, and NBAU is deemed to beneficially own the Securities beneficially owned by NBCU.

NBIA has been granted discretionary voting and dispositive power with respect to 3,643,191 of the Securities reported herein as being beneficially owned by it, and with respect to such Securities, NBIA shares voting and dispositive power with its clients in whose accounts the Securities are held. In addition, NBIA has been granted discretionary dispositive power, but not voting power, with respect to the remaining 951,879 of the Securities reported herein as beneficially owned by it. NBIA shares only dispositive power with the clients in whose accounts such Securities are held. NBCU has been granted discretionary voting and dispositive power with respect to 75,992 of the Securities reported herein as being beneficially owned by it, and with respect to such Securities, NBIA shares voting and dispositive power with its clients in whose accounts the Securities are held. In addition, NBCU has been granted discretionary dispositive power, but not voting power, with respect to the remaining 81,755 of the Securities reported herein as beneficially owned by it. NBIA shares only dispositive power with the clients in whose accounts such Securities are held.

Transactions in the Securities by the Reporting Persons effected in the past sixty days are set forth on Exhibit 4 hereto, and such information is incorporated by reference herein

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