Item 4. CONTROLS AND PROCEDURES

As of March 31, 2022, with the participation of our management, our Chief Executive Officer (principal executive officer) and our Chief Financial Officer (principal financial and accounting officer) carried out an evaluation, pursuant to Rule 13a-15(b) of the Securities Exchange Act of 1934, as amended (the “Act”), of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) of the Act). Based upon that evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2022.

There have been no changes in our internal controls over financial reporting, as defined in Rule 13a-15(f) of the Act, in the period covered by this report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

Information regarding our litigation and legal proceedings can be found in Note 9 to the Consolidated Financial Statements, which is incorporated into this Item 1 by reference.

In September 2013, U.S. Environmental Protection Agency (“EPA”) Region V issued a Notice and Finding of Violation alleging violations at our Morris, Illinois facility related to flaring activity. The Notice generally alleges failures to monitor steam usage and improper flare operations. In the Fall of 2020, EPA referred the matter to the U.S. Department of Justice (“DOJ”) and EPA Headquarters for civil judicial enforcement. In March 2022, EPA and DOJ made a revised penalty demand of $324,000. We are currently engaged in discussions to finalize the terms of a settlement agreement.

Additional information about our environmental proceedings can be found in Part I, Item 3 of our 2021 Annual Report on Form 10-K, which is incorporated into this Item 1 by reference.