WATTS WATER TECHNOLOGIES INC New Standards Disclosure

Recently Adopted Accounting Standards

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In December 2023, the Financial Accounting Standards Board (“FASB”) issued ASU 2023-09 "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for annual periods beginning January 1, 2025, with early adoption permitted. The Company adopted this standard, on a prospective basis, for its annual reporting beginning January 1, 2025 and has included the required additional disclosures in the Income Tax footnote of the consolidated financial statements for the year ended December 31, 2025.

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Accounting Standard Updates

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In November 2024, the FASB issued ASU 2024-03 "Income Statement - Reporting Comprehensive Income (Subtopic 220-40): Expense Disaggregation Disclosures" to expand the disclosure requirements of certain expense categories included in the income statement. ASU 2024-03 is effective for annual periods beginning January 1, 2027, with early adoption permitted. The Company is currently evaluating the potential effect that the updated standard will have on the Company’s consolidated financial statement disclosures.

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In July 2025, the FASB issued ASU No. 2025-05 “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets”. The amendments in this update provide a practical expedient permitting an entity to assume the conditions at the balance sheet date remain unchanged over the life of the asset when estimating expected credit losses for current classified accounts receivable and contract assets. ASU 2025-05 is effective for annual periods beginning after December 15, 2025, including interim periods within those fiscal years. Adoption of this ASU can be applied prospectively for reporting periods after its effective date. Early adoption is permitted. The Company is currently evaluating the provisions of ASU 2025-05 and does not expect it to have a material impact on our consolidated balance sheet, statement of operations and statement of cash flows.

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In September 2025, the FASB issued ASU No. 2025-06 “Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software”. ASU 2025-06 simplifies the capitalization guidance by removing all references to prescriptive and sequential software development stages (referred to as “project stages”) throughout ASC 350-40. ASU 2025-06 is effective for annual periods beginning after December 15, 2027, and interim periods within those fiscal years. Adoption of ASU 2025-06 can be applied prospectively for reporting periods after its effective date; or follow a modified transition approach that is based on the status of the respective projects and whether software costs were capitalized before the date of adoption; or retrospectively to any or all prior periods presented in the consolidated financial statements. Early adoption is permitted. The Company is evaluating the provisions of ASU 2025-06 and the potential effect it will have on the Company’s consolidated financial statements and disclosures.