KPMG Professional Services Company Zahran Business Center Prince Sultan Street P. O. Box 55078 Jeddah 21534 Kingdom of Saudi Arabia Commercial Registration No 4030290792 Headquarters in Riyadh

To the Shareholders of Saudi Aramco Base Oil Company – Luberef

Opinion

We have audited the financial statements of Saudi Aramco Base Oil Company – Luberef (“the Company”), which comprise the statement of financial position as at December 31, 2025, the statements of profit or loss and other comprehensive income, changes in equity and cash flows for the year then ended, and notes to the financial statements, comprising material accounting policies and other explanatory information.

In our opinion, the accompanying financial statements present fairly, in all material respects, the financial position of the Company as at December 31, 2025, and its financial performance and its cash flows for the year then ended in accordance with International Financial Reporting Standards (IFRS) that are endorsed in the Kingdom of Saudi Arabia and other standards and pronouncements issued by the Saudi Organization for Chartered and Professional Accountants (SOCPA).

Basis for Opinion

We conducted our audit in accordance with International Standards on Auditing that are endorsed in the Kingdom of Saudi Arabia. Our responsibilities under those standards are further described in the Auditor’s Responsibilities for the Audit of the Financial Statements section of our report. We are independent of the Company in accordance with the International Code of Ethics for Professional Accountants (including International Independence Standards), that is endorsed in the Kingdom of Saudi Arabia, as applicable to audits of the financial statements of public interest entities. We have also fulfilled our other ethical responsibilities in accordance with the Code’s requirements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.

© 2026 KPMG Professional Services Company, a professional closed joint stock company registered in the Kingdom of Saudi Arabia with a paid-up capital of SAR110,000,000 and a non-partner member firm of the KPMG global organization of independent member firms affiliated with KPMG International Limited, a private English company limited by guarantee. All rights reserved.

Key Audit Matters

Key audit matters are those matters that, in our professional judgment, were of most significance in our audit of the financial statements of the current period. These matters were addressed in the context of our audit of the financial statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on these matters.

Revenue recognition

Refer to Notes 3 and 4.19 for the accounting estimate, accounting policy relating to revenue recognition and Note 25 for the related disclosures in the accompanying financial statements.

Revenue recognition — key audit matter

Revenue recognition — key audit matter
The key audit matterHow the matter was addressed in our audit
During the year ended 31 December 2025, the Company recognised revenue amounting to Saudi Riyals 8,103 million from the sale of base oil, byproducts and freight services to domestic and international customers. Revenue recognition requires the identification of performance obligations under contracts with customers and the determination of the appropriate timing of revenue recognition in accordance with International Financial Reporting Standard 15 Revenue from Contracts with Customers (“IFRS 15”). Revenue from the sale of goods is recognised at a point in time when control of the goods is transferred to customers, while revenue from freight services is recognised over time as the related shipping services are rendered. Revenue recognition also requires an assessment of whether the Company acts as a principal or an agent in certain customer arrangements, which affects whether revenue is recognised on a gross or net basis. Revenue is a key performance indicator for the Company and, due to the significance of revenue, the volume of transactions and the complexity of revenue recognition, there is an inherent risk of material misstatement. Accordingly, revenue recognition was considered a key audit matter.We performed the following audit procedures to address the key audit matter:
  • • Evaluated the appropriateness of accounting policies for revenue recognition against requirements of relevant accounting standards;
  • • Evaluated the design and implementation of the Company’s key controls over revenue recognition;
  • • Examined contractual terms by inspecting relevant documentation and agreements with customers on a sample basis to confirm the appropriateness of identification of performance obligations and whether the Company acted as a principal or an agent;
  • • Tested a sample of sales transactions recorded during the year and inspected the supporting documentation to assess the adequacy of timing of revenue recognition;
  • • Performed cut-off testing on a sample of sales transactions before and after year-end to ensure revenue recognition in the correct accounting period; and
  • • Assessed the adequacy of the relevant disclosures in accordance with the requirements of applicable financial reporting framework included in the financial statements.

Revenue recognition — key audit matter

Revenue recognition — key audit matter
The key audit matterHow the matter was addressed in our audit
During the year ended 31 December 2025, the Company recognised revenue amounting to Saudi Riyals 8,103 million from the sale of base oil, byproducts and freight services to domestic and international customers. Revenue recognition requires the identification of performance obligations under contracts with customers and the determination of the appropriate timing of revenue recognition in accordance with International Financial Reporting Standard 15 Revenue from Contracts with Customers (“IFRS 15”). Revenue from the sale of goods is recognised at a point in time when control of the goods is transferred to customers, while revenue from freight services is recognised over time as the related shipping services are rendered. Revenue recognition also requires an assessment of whether the Company acts as a principal or an agent in certain customer arrangements, which affects whether revenue is recognised on a gross or net basis. Revenue is a key performance indicator for the Company and, due to the significance of revenue, the volume of transactions and the complexity of revenue recognition, there is an inherent risk of material misstatement. Accordingly, revenue recognition was considered a key audit matter.We performed the following audit procedures to address the key audit matter:
  • • Evaluated the appropriateness of accounting policies for revenue recognition against requirements of relevant accounting standards;
  • • Evaluated the design and implementation of the Company’s key controls over revenue recognition;
  • • Examined contractual terms by inspecting relevant documentation and agreements with customers on a sample basis to confirm the appropriateness of identification of performance obligations and whether the Company acted as a principal or an agent;
  • • Tested a sample of sales transactions recorded during the year and inspected the supporting documentation to assess the adequacy of timing of revenue recognition;
  • • Performed cut-off testing on a sample of sales transactions before and after year-end to ensure revenue recognition in the correct accounting period; and
  • • Assessed the adequacy of the relevant disclosures in accordance with the requirements of applicable financial reporting framework included in the financial statements.

Other Matter Relating to Comparative Information

The financial statements of the Company as at and for the year ended December 31, 2024 were audited by another auditor who expressed an unmodified opinion on those financial statements on February 24, 2025.

Other Information

Management is responsible for the other information. The other information comprises the information included in the annual report, but does not include the financial statements and our auditor’s report thereon.

Our opinion on the financial statements does not cover the other information and we do not express any form of assurance conclusion thereon.

In connection with our audit of the financial statements, our responsibility is to read the other information and, in doing so, consider whether the other information is materially inconsistent with the financial statements or our knowledge obtained in the audit, or otherwise appears to be materially misstated. If, based on the work we have performed, we conclude that there is a material misstatement of this other information, we are required to report that fact. We have nothing to report in this regard.

Responsibilities of Management and Those Charged with Governance for the Financial Statements

Management is responsible for the preparation and fair presentation of the financial statements in accordance with IFRS that are endorsed in the Kingdom of Saudi Arabia and other standards and pronouncements issued by SOCPA, the applicable requirements of the Regulations for Companies and Company’s By-laws and for such internal control as management determines is necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud or error.

In preparing the financial statements, management is responsible for assessing the Company’s ability to continue as a going concern, disclosing, as applicable, matters related to going concern and using the going concern basis of accounting unless management either intends to liquidate the Company or to cease operations, or has no realistic alternative but to do so.

Those charged with governance, Board of Directors, are responsible for overseeing the Company’s financial reporting process.

Auditor’s Responsibilities for the Audit of the Financial Statements

Our objectives are to obtain reasonable assurance about whether the financial statements as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditor’s report that includes our opinion. ‘Reasonable assurance’ is a high level of assurance, but is not a guarantee that an audit conducted in accordance with International Standards on Auditing that are endorsed in the Kingdom of Saudi Arabia, will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these financial statements.

As part of an audit in accordance with International Standards on Auditing that are endorsed in the Kingdom of Saudi Arabia, we exercise professional judgement and maintain professional scepticism throughout the audit. We also:

  • Identify and assess the risks of material misstatement of the financial statements, whether due to fraud or error, design and perform audit procedures responsive to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations or the override of internal control.
  • Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control.
  • Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and related disclosures made by management.
  • Conclude on the appropriateness of management’s use of the going concern basis of accounting and, based on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Company’s ability to continue as a going concern. If we conclude that a material uncertainty exists, then we are required to draw attention in our auditor’s report to the related disclosures in the financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditor’s report. However, future events or conditions may cause the Company to cease to continue as a going concern.
  • Evaluate the overall presentation, structure and content of the financial statements, including the disclosures, and whether the financial statements represent the underlying transactions and events in a manner that achieves fair presentation.

We communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal control that we identify during our audit of Saudi Aramco Base Oil Company – Luberef (“the Company”).

We also provide those charged with governance with a statement that we have complied with relevant ethical requirements regarding independence, and communicate with them all relationships and other matters that may reasonably be thought to bear on our independence and where applicable, actions taken to eliminate threats or safeguards applied.

From the matters communicated with those charged with governance, we determine those matters that were of most significance in the audit of the financial statements of the current period and are therefore the key audit matters. We describe these matters in our auditor’s report unless law or regulation precludes public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication.

KPMG Professional Services Company

Abdullah Oudah Althagafi

License No. 455

Jeddah, February 15, 2026

Corresponding to Shaban 27, 1447H