Organon & Co.

To the Board of Directors and Stockholders of Organon & Co.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Organon & Co. and its subsidiaries (the "Company") as of December 31, 2023 and 2022, and the related consolidated statements of income, of comprehensive income, of stockholders' equity (deficit) and of cash flows for each of the three years in the period ended December 31, 2023, including the related notes (collectively referred to as the "consolidated financial statements"). We also have audited the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework(2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2023 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework(2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

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Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that (i) relate to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Income Taxes - Valuation of Certain Deferred Tax Assets in Switzerland

As described in Notes 3 and 10 to the consolidated financial statements, as of December 31, 2023, the Company has $863 million of net deferred tax assets, inclusive of valuation allowances totaling $309 million, of which $210 million of the valuation allowances relate to certain Switzerland deferred tax assets. In 2023, the Company recorded a $476 million tax benefit comprised of a gross benefit of $686 million, net of a $210 million valuation allowance, resulting from the termination of a tax arrangement in Switzerland. The valuation allowance was determined based on expected future income and the terms of the remaining Switzerland tax arrangement. Deferred taxes are recognized for the future tax effects of temporary differences between financial and income tax reporting based on enacted tax laws and rates. The Company establishes valuation allowances for its deferred tax assets when the amount of expected future income is not likely to support the use of the deduction or credit. Management assesses all available evidence to estimate whether a valuation allowance should be recorded against existing deferred tax assets.

The principal considerations for our determination that performing procedures relating to the valuation of certain deferred tax assets in Switzerland is a critical audit matter are (i) the significant judgment by management when determining whether these deferred tax assets are more likely than not to be realized in the future; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating audit evidence related to management’s significant assumption related to expected future income by year for Switzerland; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the realizability of the deferred tax assets, including controls over management’s assessment of expected future income for Switzerland. These procedures also included, among others, testing management process by (i) evaluating evidence available to support management’s assessment of the realizability of certain deferred tax assets in Switzerland; (ii) testing the completeness and accuracy of underlying data used in management’s assessment; (iii) evaluating the terms of the Company’s existing tax arrangement in Switzerland and the appropriateness of enacted tax rates; and (iv) evaluating the reasonableness of management’s significant assumption related to expected future income by year for Switzerland. Evaluating the reasonableness of expected future income by year for Switzerland involved considering (i) the current and past performance of the Switzerland entity and (ii) whether the assumption was consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in evaluating the reasonableness of certain inputs used by management in developing the significant assumption related to expected future income for Switzerland.

U.S. Rebate Accruals – Medicaid and Managed Care Rebates

As described in Note 3 to the consolidated financial statements, the Company records certain variable consideration including discounts, which are estimated at the time of sale generally using the expected value method. Amounts accrued, included in accrued and other current liabilities, for aggregate customer discounts as of December 31, 2023 in the United States was $417 million, of which the majority related to U.S. rebate accruals for Medicaid and Managed Care. These rebate accruals are evaluated on a quarterly basis through comparison of information provided by the wholesalers, health maintenance organizations, pharmacy benefit managers, federal and state agencies, and other customers to the amounts accrued. Certain of these discounts are in the form of rebates, which are amounts owed based upon definitive contractual agreements or legal requirements with private sector (Managed Care) and public sector (Medicaid and Medicare Part D) benefit providers, after the final dispensing of the product by a pharmacy to a benefit plan participant. The provision for rebates is based on expected patient usage, as well as inventory levels in the distribution channel to determine the contractual obligation to the benefit providers. Management uses historical customer segment utilization mix, sales, changes to product mix and price, inventory

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The principal considerations for our determination that performing procedures relating to U.S. rebate accruals for Medicaid and Managed Care is a critical audit matter are (i) the significant judgment by management when developing these rebate accruals; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions related to pricing information and historical customer segment utilization mix; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to provisions for U.S. Medicaid and Managed Care rebates. These procedures also included, among others (i) developing an independent estimate of the U.S. rebate accruals for Medicaid and Managed Care by utilizing third-party data on historical customer segment utilization mix in the U.S., pricing information, the terms of the specific rebate programs, and the historical trends of actual rebate claims paid; (ii) comparing the independent estimate to the U.S. rebate accruals for Medicaid and Managed Care recorded by management; and (iii) testing, on a sample basis, actual rebate claims paid for U.S. Medicaid and Managed Care, including evaluating those claims for consistency with the contractual terms of the Company's rebate agreements. Professionals with specialized skill and knowledge were used to assist in evaluating the reasonableness of the pricing information used in the Medicaid portion of the accrual.

/s/PricewaterhouseCoopers LLP

Florham Park, New Jersey

February 26, 2024

We have served as the Company's auditor since 2019.

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