HA Sustainable Infrastructure Capital, Inc. (HASI) adopted an Executive Protection Plan (Severance Plan) on March 25, 2026. The Severance Plan will become effective on May 1, 2026. The plan provides severance benefits to the Company's Chief Executive Officer (CEO) and certain management employees, categorized into three tiers. Tier A benefits are for the CEO, Tier B for named executive officers, and Tier C for other management employees as determined by the Compensation Committee. Severance benefits are triggered by a 'Qualifying Termination,' generally defined as termination by the Company without Cause or, for Tier A and B, resignation due to a 'Constructive Termination.' In a 'Change in Control Period' (one year following a Change in Control), Tier A employees receive 3.0 times annual base salary plus average bonus and 24 months of COBRA; Tier B receives 2.0 times and 18 months COBRA; Tier C receives 1.5 times and 12 months COBRA. For a 'Non-Change in Control Qualifying Termination,' Tier A employees receive 3.0 times annual base salary plus average bonus and 24 months of COBRA; Tier B receives 1.5 times and 18 months COBRA; Tier C receives 1.0 times and 12 months COBRA. Eligibility for benefits requires signing a participation agreement, executing a release of claims, and complying with restrictive covenants. Severance benefits are subject to reduction to avoid Section 4999 excise tax if it results in a greater after-tax benefit to the individual, and the plan does not provide tax gross-up payments.