NOTE 11—EARNINGS (LOSS) PER SHARE

The computation of basic and diluted earnings per share (“EPS”) is shown on the following page:

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Unvested restricted stock awards have the right to receive nonforfeitable dividends on the same basis as common shares; therefore, unvested restricted stock is considered a participating security to calculate EPS. Under the two-class method, the Company reports separately the net earnings allocated away from holders of Class A and Class B common stock to holders of unvested restricted stock awards.

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For accounting purposes, Class B’s participation rights in net earnings are, in substance, discretionary based on the power of the Company’s Board of Directors to add or modify expense allocation policies, redefine CORE assets, and redetermine CORE’s per-ton usage fees at any time, in its sole discretion, without shareholder approval. Therefore, no amount of the Company’s net earnings shall be allocated to Class B to calculate EPS other than actual dividends declared during the period for the tracking stock. However, during the three months ended March 31, 2026, dividends declared by the Company were more than consolidated net income (loss) for the period, which resulted in an undistributed net loss for reporting purposes. The resulting undistributed net loss was allocated proportionately between outstanding Class A and Class B common stock based on the rights to residual net assets upon liquidation being equal between holders of Class A and Class B common stock. See Note 7 for more information on dividends declared during the period.

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Diluted EPS is calculated using the treasury stock method for stock options and restricted stock units. For performance stock units, the awards are first evaluated under the contingently issuable shares guidance, which requires a determination as to whether shares would be issuable if the end of the reporting period were the end of the contingency period. For shares determined to be issuable under performance stock unit awards, the treasury stock method is then applied to determine the dilutive impact of the awards, if any. Unvested restricted stock awards are considered potential common shares as well as participating securities, as discussed previously, and are included in diluted EPS using the more dilutive of the treasury stock method or the two-class method. Since these awards share in dividends on a 1:1 basis with common shares, applying the treasury stock method is antidilutive compared to the basic EPS calculation that allocates earnings to participating securities under the two-class method discussed previously.

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Antidilutive shares excluded from the dilutive EPS calculation are presented below:

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