Columbus McKinnon Corporation CMCO Duff Norton Group — Goodwill

Goodwill and indefinite lived trademarks are not amortized but are tested for impairment at least annually, in accordance with the provisions of ASC Topic 350-20-35-1. Goodwill impairment is deemed to exist if the net book value of a reporting unit exceeds its estimated fair value. The fair value of a reporting unit is determined using a discounted cash flow methodology. The Company’s reporting units are determined based upon whether discrete financial information is available and reviewed regularly, whether those units constitute a business, and the extent of economic similarities between those reporting units for purposes of aggregation. The Company’s reporting units identified under ASC Topic 350-20-35-33 are at the component level, or one level below the operating segment level as defined under ASC Topic 280-10-50-10 “Segment Reporting - Disclosure.” The Company has three reporting units as of December 31, 2025 and March 31, 2025. The Linear Motion Products reporting unit (which designs, manufactures and sources mechanical and electromechanical actuators and rotary unions) had goodwill of $9,699,000 at December 31, 2025 and March 31, 2025. The Rest of Products reporting unit (representing the hoist, chain, forgings, digital power, motion control, manufacturing, and distribution businesses) had goodwill of $320,083,000 and $305,110,000 at December 31, 2025 and March 31, 2025, respectively. The Precision Conveyance reporting unit (which represents high-precision conveying systems) had goodwill of $401,764,000 and $395,998,000 at December 31, 2025 and March 31, 2025, respectively.