Pursuant to the requirements of the Securities Exchange Act
of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Exhibit 99.1
Calle La Colonia N° 150,
Urb. El Vivero - Santiago de Surco
Tel: 317-6000
Lima, November 9, 2026
Sirs
Superintendencia del Mercado De
Valores – SMV
Lima.-
Reference: Material Event
In accordance with Article 30 of the
Consolidated Text of the Securities Market Law and the Regulations on Material Events and Reserved Information, approved by SMV Resolution
No. 005-2014-SMV/01, we hereby report the following:
We have received a copy of Official
Letter No. 5715-2026-SMV/11.1 (the “Official Letter”), whereby the Superintendencia del Mercado de Valores has notified Inversiones
Aspi S.A. (“Aspi”) of certain additional observations regarding the documentation and information submitted by Aspi in connection
with the commencement of the Mandatory Tender Offer launched by Aspi for the common voting shares representing the share capital of Cementos
Pacasmayo S.A.A.
A copy of the Official Letter is attached
as an annex to this communication.
We remain at your disposal should you
require any further information.
Sincerely,
CEMENTOS PACASMAYO S.A.A.
José Félix Villafuerte
Mendoza
Stock Exchange Representative

San Isidro, November 6, 2026
OFFICIAL LETTER Nº 5715-2026-SMV/11.1
Sirs
Norberto Germán Ledea
Wilter
Fernando Vera Franco
Representatives
Inversiones ASPI S.A.
Calle La Colonia No. 150, Urbanización
El Vivero
Santiago de Surco, Lima.-
Ref.: File Nº 2026046722
We are writing
in connection with the submission filed on November 2, 2026, whereby Inversiones ASPI S.A. (hereinafter, “ASPI” or the “Offeror”)
responded to the observations set forth in Official Letter No. 5476-2026-SMV/11.1, issued by the General Office of Conduct Supervision
(Intendencia General de Supervisión de Conductas – IGSC), in connection with the Subsequent Tender Offer (Oferta Pública
de Adquisición Posterior – OPA) launched by ASPI to acquire a maximum of 211,882,902 (two hundred eleven million eight hundred
eighty-two thousand nine hundred two) common voting shares representing the share capital of Cementos Pacasmayo S.A.A. (hereinafter, “Pacasmayo”),
equivalent to 49.99% of Pacasmayo’s common shares.
In this regard,
following the review of the documentation and information submitted by ASPI, and pursuant to Article 16 of the Regulations on Tender Offers
and Purchases of Securities upon Delisting, approved by CONASEV Resolution No. 009-2006-EF/94.10, as amended¹ (hereinafter, the “Tender
Offer Regulations”), we hereby inform you of the following observations:
| |
1. | Considering the response provided by your company to the request set forth in Section 2.1.3 of Official
Letter No. 5476-2026-SMV/11.1, regarding the confidential nature of the information contained in the due diligence summaries, you are
required to submit a legal expert opinion supporting such confidentiality. The opinion must precisely identify the information or documentation
for which confidentiality is claimed, the applicable legal provisions supporting its confidential nature, the legal grounds on which disclosure
would not be required in connection with the Tender Offer, and the name of the attorney signing such opinion. |
| |
2. | In the List of Annexes to the Information Prospectus, the reference to Annex VI must be corrected, given
that the unaudited interim separate financial statements of ASPI attached thereto relate to the period ended September 30, 2026. |
| 1 | It should be noted that, pursuant to paragraph 1 of the Sole
Supplementary Transitional Provision and the Second Supplementary Repealing Provision of SMV Resolution No. 008-2026-SMV/01 (hereinafter,
the “Resolution”), this Subsequent Tender Offer is governed by the Regulations on Tender Offers and Purchases of Securities
upon Delisting, approved by CONASEV Resolution No. 009-2006-EF/94.10, and by the Rules approved by Management Resolution No. 025-2006-EF/94.45,
as in effect prior to the amendments introduced by the Resolution, since the obligation to launch the Subsequent Tender Offer arose before
the Resolution entered into force, and Holcim Ltd. notified the SMV of its decision not to be subject to the regulatory framework established
by said Resolution. |
| |
3. | In Item 4, «Entities Comprising the Economic
Group, » under Subsection B, “INFORMATION ON THE ECONOMIC GROUP,” of Section III, “INFORMATION ON THE OFFEROR,”
of the Information Prospectus, the information contained in the table regarding entities with securities registered in the Public Securities
Market Registry (Registro Público del Mercado de Valores – RPMV) must be corrected, since Holcim Perú Agregados S.A.
(formerly Cia Minera Agregados Calcareos S.A.) and ASPI currently do not have securities registered in said registry. |
| | |
| |
4. | In the table under Item II.a, “Entities Comprising the Economic Group,” of Annex II, “Economic
Group Information,” of the Information Prospectus, the market in which Holcim has listed securities must be specified, considering
that, according to the information provided in the Information Prospectus, said company is listed on the Swiss Stock Exchange (SIX Swiss
Exchange). |
| | |
| |
5. | In Subsection H, “FORMALITIES TO BE COMPLETED FOR ACCEPTANCE OF THE TENDER OFFER,” of Section
IV, “INFORMATION ON THE OFFER,” of the Information Prospectus, the email addresses of the Brokerage Agent to which the Letter
of Acceptance must be sent must be specified, as this information has not been included (page 47, last paragraph). |
| | |
| |
6. | In Subsection Q, “RELEVANT INFORMATION CONTAINED IN THE U.S. OFFER PROSPECTUS,” the information
regarding the effects of the Offers must be updated, considering that the example provided in said section² for calculating the Offeror’s
share of the net book value and net income attributable to the owners of the Target Company has been modified in the document entitled
“Amended and Restated Offer to Purchase, dated November 3, 2026,” corresponding to the tender offer in the United States of
America (hereinafter, the “U.S. Offer”)³, using the information from Pacasmayo’s unaudited interim consolidated financial
statements as of September 30, 2026 for such calculation. |
| 2 | Information Prospectus prepared as of November 2, 2026. Pages
64 and 65: |
| | |
| 3 | Link: |
| | https://www.sec.gov/Archives/edgar/data/1221029/000114036126041643/ny20084690x1_exa1a.htm#t
PPR |
«EFFECTS OF THE OFFERS AND
SUBSEQUENT PLANS REGARDING THE TARGET COMPANY:
(…)
For example, according to the Target
Company’s unaudited interim consolidated financial statements as of June 30, 2026 and for the six-month period ended on that date, filed
with the SEC on Form 6-K on July 20, 2026 (the “2026 Semiannual Report”), as of June 30, 2026, the Target Company’s net book
value, calculated as total assets less total liabilities, amounted to approximately S/1,351.1 million, and net income attributable to
the owners of the Target Company for the six-month period ended June 30, 2026 amounted to approximately S/159.2 million.
Assuming the Offeror’s current ownership
of 211,985,547 Shares, or approximately 50.01% of the outstanding Shares (49.52% of the 428,106,846 outstanding Shares and investment
shares, excluding investment shares held by the Target Company), as of June 30, 2026, the Offeror’s share of the net book value and net
income attributable to the owners of the Target Company as of June 30, 2026 and for the six-month period ended on that date would have
amounted to approximately S/669.0 million and S/78.8 million, respectively.
Assuming that all outstanding Shares
(other than Shares owned by the Offeror) are tendered in the Offers and that the Offers are completed, the Offeror’s share of these amounts
would increase to approximately S/1,337.8 million and S/157.6 million, respectively (99.01%), and the Offeror would be entitled to all
other benefits arising from its ownership of 423,868,449 Shares, including income generated by the Target Company’s operations and any
future increase in the value of the Target Company.
(…)»

The aforementioned
observations must be addressed within a period not exceeding three (3) business days, calculated from the business day following notification
of this Official Letter. It should be noted that any correction made to any Tender Offer document must also be reflected in the other
offering documents, as applicable, and that all information submitted by the Offeror in connection with the Tender Offer, including financial
information, must remain up to date until the observations have been duly addressed.
Furthermore, in accordance with the express
indication in your application, as well as Articles 20, paragraph 20.4, and 113, paragraph 5, of the Consolidated Text of the
General Administrative Procedure Law, Law No. 27444, approved by Supreme Decree No. 006-2026-JUS, this Official Letter will be
notified to the following email addresses: «contactobbvasab.group@bbva.com», «jvelez@munizlaw.com»,
«carata@munizlaw.com» y «rizquierdo@munizlaw.com».
Finally, it
should be noted that the aforementioned observations have been made based on the information prepared and submitted by the Offeror in
connection with the corresponding administrative proceeding. Accordingly, no administrative verification or audit procedures have been
performed with respect to such information. The aforementioned legal provisions and the applicable administrative procedures have been
taken as references, which does not constitute or imply any examination or assessment of the completeness and accuracy of such information
or of the Offeror’s economic and financial condition.
Yours sincerely,
/s/ Alix Godos
Alix Godos
Intendente General
Office of Conduct
Supervision
Intendencia General de Supervisión de
Conductas
JVB/MAD
BMP/JCG
CC:
Holcim Ltd.
BBVA Bolsa Sociedad Agente de Bolsa
S.A.
Muñiz, Olaya, Meléndez, Castro & Ono Abogados
Bolsa de Valores de Lima S.A.
Cementos Pacasmayo S.A.A.