SUBURBAN PROPANE PARTNERS LP New Standards Disclosure

Recently Issued Accounting Pronouncements. In December 2023, the FASB issued Accounting Standards Update (“ASU”) 2023-09, “Income Taxes: Improvements to Income Tax Disclosures” (“Topic 740”). This update requires disclosure of specific categories and disaggregation of information in the income tax rate reconciliation table. Topic 740 also requires disclosure of disaggregated information related to income taxes paid, income or loss from continuing operations before income tax expense or benefit, and income tax expense or benefit from continuing operations. The requirements of Topic 740 are effective for annual periods beginning after

December 15, 2024, which will be the Partnership’s fiscal 2026 annual report. Early adoption is permitted and the amendments should be applied on a prospective basis with retrospective application also being permitted. The Partnership is assessing the effect of this update on its consolidated financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, “Disaggregation of Income Statement Expenses” (“Subtopic 220-40”) and in January 2025, the FASB issued ASU 2025-01, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures.” These updates require enhanced disclosure of income statement expense categories to improve transparency and provide financial statement users with more detailed information about the nature, amount and timing of expenses impacting financial performance. Subtopic 220-40 may be applied either prospectively or retrospectively and, as clarified by ASU 2025-01, is effective for fiscal years beginning after December 15, 2026 and interim periods beginning after December 15, 2027. Subtopic 220-40 will first be effective for the Partnership’s 2028 annual report. The Partnership is assessing the effect of this update on its consolidated financial statements and related disclosures

Recently Adopted Accounting Pronouncements. On the first day of fiscal 2025, the Partnership adopted the guidance under ASU 2023-07, “Segment Reporting: Improvements to Reportable Segment Disclosures” (“Topic 280”). This update required public entities to disclose significant segment expenses that are regularly provided to the chief operating decision maker and included within segment profit and loss. Beginning with this Annual Report for fiscal 2025, the adoption of Topic 280 resulted in incremental segment reporting disclosures, most notably disclosure of cost of products sold and operating expenses for each reportable segment. See Note 18, "Segment Information" for more information.