Company: AOS
Filing Date: 2025-06-30
Form Type: 11-K
Source: 0000091142-25-000086
Chunk: 6

Company: SMITH A O CORP
Filing Date: 2025-06-30
Form: 11-K
Chunk 6
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 who are employed on such date or who terminated during the year on or after attainment of age 65 or reaching retirement eligibility under their defined benefit plan, death, total and permanent disability, or termination resulting directly from job abolishment.

Also, effective January 1, 2010, all participants who are not eligible to accrue a benefit under any of the Company’s qualified defined benefit pension plans will be eligible for an annual non-elective employer contribution equal to 3% of the participant’s total compensation for the plan year, and will be eligible for a discretionary annual non-elective employer contribution in an amount determined by the Company, if any. In order to receive a non-elective employer contribution for a plan year, an eligible participant must be employed in a full-time equivalent position for the plan year or complete 1,000 hours of service during a plan year and be employed on the last day of the plan year or terminate employment during the plan year as a result of death, disability, retirement, or termination resulting from job abolishment. This non-elective contribution will vest after three years of vesting service.

Effective January 1, 2024, the Plan was amended to merge Water Tec Corporation Profit Sharing Plan (the “Water Tec Plan”) into the Plan. The related participants of the Water Tec Plan were transferred to the Plan effective January 2024.

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1. Description of Plan and Significant Accounting Policies (continued)

#### Contributions
The Plan is a defined contribution plan to which participants may make contributions of not less than 1% and up to 100% of their earnings in any combination of before-tax and after-tax (Roth) contributions. Before-tax contributions are excluded from the participant’s current wages for federal income tax purposes and included for Roth contributions. The Internal Revenue Code has set a maximum of $23,000 for tax-deferred contributions that may be excluded for any individual participant in 2024 and $22,500 in 2023.

The Internal Revenue Code also allows additional catch-up contributions for participants age fifty or older. The maximum additional contribution allowed was $7,500 in 2024 and $7,500 in 2023. The Plan also provides for Company contributions in the form of matching contributions and non-elective contributions.

No federal income tax is paid on the pre-tax participant deferrals and Company contributions and growth thereon until the participant withdraws them from the Plan.

Contributions from participants are recorded when the Company makes payroll deductions from Plan participants