Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by theannual report: As of December 31, 2025 423,868,449 common shares4,238,397 non-voting investment shares* *Excluding 36,040,497 non-voting investment shares held in treasury. Note - Checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities ExchangeAct of 1934 from their obligations under those Sections. Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Actof 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to suchfiling requirements for the past 90 days. Yes☒No☐ Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted and postedpursuant to Rule 405 of Regulation S-T (§ 203.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant wasrequired to submit such files).Yes☒No☐ Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or an emerging growthcompany. See definition of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Checkone): Large accelerated filer☐Accelerated filer☒Non-accelerated filer☐Emerging growth company☐ If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registranthas elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section13(a) of the Exchange Act.☐ †The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its AccountingStandards Codification after April 5, 2012. Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of itsinternal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firmthat prepared or issued its audit report.☒ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the Registrantincluded in the filing reflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-basedcompensation received by any of the Registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark which basis of accounting the Registrant has used to prepare the financial statements included in this filing: International Financial Reporting Standards as issued by the InternationalAccounting Standards Board☒ If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the Registrant haselected to follow. Item 17☐Item 18☐ If this is an annual report, indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒ TABLE OF CONTENTS Certain Definitions All references to “we,” “us,” “our,” “our company,” “Pacasmayo,” and “Cementos Pacasmayo” in this annual report on Form 20-F are toCementos Pacasmayo S.A.A., a publicly held corporation (sociedad anónima abierta) organized under the laws of Peru, and, unless the context requiresotherwise, its consolidated subsidiaries. References to “our controlling shareholder” are to Inversiones ASPI S.A. The term “U.S. Dollar” or “U.S.Dollars” and the symbol “US$” refer to the legal currency of the United States; and the term “Sol” or “Soles” and the symbol “S/” refer to the legalcurrency of Peru. Financial Information Our consolidated financial statements included in this annual report on Form 20-F have been prepared inSolesand in accordance withInternational Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”) and audited in accordancewith the standards of the Public Company Accounting Oversight Board (United States). We have translated some of theSolesamounts appearing in this annual report on Form 20-F into U.S. Dollars for convenience purposes only.Unless the context otherwise requires, the rate used to translateSolesamounts to U.S. Dollars was S/3.363 to US$1.00 as of December 31, 2025, whichwas the average accounting exchange rate (tipo de cambio contable) reported on December 31, 2025, by the Peruvian Superintendence of Banks,Insurance and Private Pension Fund Administrators (Super