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Employee Retirement Plans
12 Months Ended
Dec. 31, 2020
Employee Retirement Plans  
Employee Retirement Plans

(7) Employee Retirement Plans

The Company has a contributory retirement (401(k)) savings plans for non-union employees and for union employees of Arkansas Lime Company, Carthage Crushed Limestone, and Texas Lime Company. Company contributions to these plans were $282, $259 and $251 in 2020, 2019 and 2018, respectively.