This document relates to an offer to purchase your ADSs (as defined below) for cash, dated October 22, 2026 (together with any amendments or supplements thereto, the “Offer to Purchase”) by Inversiones ASPI S.A., a Peruvian sociedad anónima (“Purchaser” or “ASPI”), a direct, majority-owned subsidiary of Holcim Ltd, a Swiss limited company (“Holcim”). Purchaser is offering to purchase any and all of the outstanding common shares, par value S/ 1.00 per share (each, a “Common Share,” and collectively, the “Common Shares”) (other than Common Shares owned by Holcim and its affiliates), of Cementos Pacasmayo S.A.A., a publicly-held corporation (sociedad anónima abierta) organized under the laws of Peru (the “Company”), including Common Shares represented by American Depositary Shares (each of which represents five Common Shares) (each, an “ADS,” and collectively, the “ADSs”), delivered by JPMorgan Chase Bank, N.A., acting as depositary (“ADS Depositary”), pursuant to that certain Deposit Agreement, dated as of February 7, 2012, and amended on each of February 21, 2017 and December 4, 2020, among the Company, the ADS Depositary and the holders from time to time of ADSs issued thereunder, through concurrent tender offers in Peru and in the United States.

Purchaser is offering to purchase Common Shares from U.S. holders (within the meaning of Rule 14d-1(d) under the U.S. Securities Exchange Act of 1934, as amended, which defines a U.S. holder as “any security holder resident in the United States”), and ADSs from all holders, wherever located, for S/ 8.93 per Common Share and S/ 44.65 per ADS, in each case, payable to the seller in cash, without interest, less any withholding taxes that may be applicable (see “The U.S. Offer - Terms of the U.S. Offer - Material Terms - Consideration and Payment” of the Offer to Purchase), upon the terms and subject to the conditions set forth in the Offer to Purchase and this American Depositary Share Letter of Transmittal (together with any amendments or supplements thereto, the “ADS Letter of Transmittal,” and together with the Offer to Purchase and other related materials, as each may be amended or supplemented from time to time, the “U.S. Offer”).

Capitalized terms used in this ADS Letter of Transmittal and not otherwise defined herein have the meanings ascribed to them in the Offer to Purchase.

THIS ADS LETTER OF TRANSMITTAL MAY BE USED BY REGISTERED HOLDERS OF ADSs TO TENDER ADSs AND BY U.S. HOLDERS OF COMMON SHARES TO TENDER INTO THE U.S. OFFER.

You should use this ADS Letter of Transmittal if you are a registered holder of American Depositary Receipts evidencing ADSs or uncertificated ADSs on the books of the ADS Depositary pursuant to the procedures set forth in the Offer to Purchase (see “The U.S. Offer - Procedures for Tendering into the U.S. Offer - Tender of ADSs” of the Offer to Purchase).

U.S. holders of Common Shares that wish to participate in the U.S. Offer may, pursuant to the instructions contained in the Offer to Purchase, deposit their Common Shares for issuance of ADSs that will be tendered into the U.S. Offer. U.S. holders of Common Shares who hold such shares through a broker, dealer, commercial bank, trust company, custodian or other nominee should contact their broker, dealer, commercial bank, trust company, custodian or other nominee in order to tender their Common Shares in the U.S. Offer (see “The U.S. Offer - Procedures for Tendering into the U.S. Offer - Tender of Common Shares” of the Offer to Purchase). Note that local custodians and securities intermediaries are likely to establish cut-off times and dates that are earlier than 4:00 p.m., New York City time, on November 20, 2026, or the latest time and date at which the U.S. Offer will expire if the U.S. Offer is extended (the “Expiration Date”) for receipt of instructions to tender Common Shares and may charge a transaction or service fee. You should consult your local custodian or securities intermediary to determine the cut-off time and date applicable to you, and whether you will be charged any transaction or service fee.

U.S. holders of Common Shares will not be responsible for any fees relating to the deposit of Common Shares with the ADS Depositary for issuance of ADSs to be tendered into the U.S. Offer or any fees relating to the subsequent cancellation of the ADSs purchased pursuant to the U.S. Offer.

The instructions set forth in the Offer to Purchase and this ADS Letter of Transmittal should be read carefully before this ADS Letter of Transmittal is completed.

Purchaser is not providing for guaranteed delivery procedures. Therefore, you may not accept the U.S. Offer by delivery of a notice of guaranteed delivery. The only methods for accepting the U.S. Offer are the procedures set forth in the Offer to Purchase (see “The U.S. Offer - Procedures for Tendering into the U.S. Offer” of the Offer to Purchase).

This tender of ADSs (including Common Shares deposited for issuance of ADSs as described above) is made subject to all the terms and conditions of the U.S. Offer, and the undersigned hereby makes, for itself, and, if it is

tendering on behalf of a customer, on behalf of its customer, all the representations, warranties and undertakings of tendering holders that are set forth in the Offer to Purchase, which the undersigned acknowledges it has received and, if it is tendering on behalf of a customer, has delivered to or made available to its customer.

THE U.S. OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 4:00 P.M., NEW YORK CITY TIME, ON NOVEMBER 20, 2026, UNLESS THE U.S. OFFER IS EXTENDED.

To the extent Purchaser does not accept for payment your Common Shares tendered in the U.S. Offer, please supply the following information about your local custodian or securities intermediary in Peru for delivery of any Common Shares which have not been accepted for payment by Purchaser.

Delivery of ADS Letter of Transmittal: This ADS Letter of Transmittal must be mailed or delivered by overnight courier to the U.S. Tender Agent. The method of delivery to the U.S. Tender Agent at one of the addresses listed below is at the option and risk of the tendering holders of such ADSs. Delivery by overnight courier, properly insured, is recommended. Delivery will be deemed effective only when received by the U.S. Tender Agent. For your convenience, a return envelope is enclosed.

Authorization and Registration: The signer(s) will, upon request, execute and deliver any additional documents reasonably deemed by the U.S. Tender Agent to be appropriate or necessary to complete the tender. The signer(s) hereby irrevocably appoints the U.S. Tender Agent as lawful agent and attorney in-fact of the signer(s) to effect the tender (such power of attorney being deemed coupled with an interest). By providing the information required by this ADS Letter of Transmittal, the signer confirms that the registered holder has consented to the provision of such information, including any personal data contained therein, to the U.S. Tender Agent and the further transfer by the U.S. Tender Agent of that information and personal data (if applicable) for the purpose of the tender. All authority conferred or agreed to be conferred in this form shall be binding upon the successors, assigns, heirs, executors, administrators and legal representatives of the signer(s) and shall not be affected by, and shall survive, the death and incapacity of the signer(s). The signer(s) understands that tender will not be deemed to have been made in acceptable form until receipt by the U.S. Tender Agent of this ADS Letter of Transmittal, duly completed and manually signed, and all accompanying evidences of authority. The signer(s) agrees that all questions as to validity, form and eligibility of any tender of ADSs hereunder will be determined by Purchaser and that such determination will be final and binding. The signer(s) acknowledges that until Purchaser accepts the tendered ADSs, the signer(s) will not receive any cash in exchange for the ADSs. The signer(s) further agrees that no interest will accrue on the cash payment.

Form W-9: Under U.S. federal income tax law, a U.S. holder (as defined in “The U.S. Offer - Tax Considerations - Material U.S. Federal Income Tax Consequences” of the Offer to Purchase) is required to provide the U.S. Tender Agent with such holder’s correct taxpayer identification number. If your taxpayer identification number is not certified on our records, we have enclosed a Form W-9 for you to complete and return. Failure to provide the information on the form may subject you to backup withholding on any reportable payment. If you are not a U.S. holder, you must complete and submit Form W-8BEN or other appropriate Form W-8 (which may be obtained from the website of the U.S. Internal Revenue Service on http://www.irs.gov or from Georgeson LLC, which has been appointed as information agent) to the U.S. Tender Agent.