6-K

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

REPORTOF FOREIGN ISSUER

PURSUANTTO RULE 13a-16 OR 15b-16 OF

THESECURITIES EXCHANGE ACT OF 1934

Forthe month of March 2026

CommissionFile Number 001-35401

CEMENTOSPACASMAYO S.A.A.

(Exact name of registrant as specified in its charter)

PACASMAYOCEMENT CORPORATION

(Translation of registrant’s name into English)

Republicof Peru

(Jurisdiction of incorporation or organization)

CalleLa Colonia 150, Urbanización El Vivero

Surco,Lima

Peru

**(**Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☒      Form 40-F ☐

CEMENTOS PACASMAYO S.A.A.

The following exhibit is attached:

1

Signatures

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.

CEMENTOS PACASMAYO S.A.A.

2

Exhibit 99.1

Calle La Colonia N° 150

Urb. El Vivero - Santiago de Surco

Telf: 317-6000

Lima, March 21, 2026

To

Superintendency of the Securities Market – SMV

Lima.-

Reference: **** Disclosure of Material Event

Dear Sirs:

By means of this letter, and within the framework of the provisions of the Regulations on Material Events and Reserved Information, approved by SMV Resolution No. 005-2014-SMV/01, we hereby report the following:

As was timely communicated to the market via a material event notice dated December 16, 2025, the majority shareholders of Inversiones ASPI S.A. and Holcim Ltd. entered into a Share Purchase Agreement, subject to certain conditions precedent, for the sale of 99.99% of the shares of Inversiones Aspi S.A.—owner of 50.01% of the capital stock of Cementos Pacasmayo S.A.A.—to the Swiss corporation Holcim Ltd. (the “Transaction”).

In this regard, we have been informed today by our shareholder Inversiones Aspi S.A. that the Free Competition Commission of the National Institute for the Defense of Free Competition and the Protection of Intellectual Property (INDECOPI) has authorized the Transaction without conditions.

Likewise, Inversiones Aspi S.A. has informed us that the closing and execution of the Transaction remain subject to the fulfillment of the additional conditions agreed upon between the majority shareholders of Inversiones Aspi S.A. and Holcim Ltd.

With nothing further to add, we remain yours truly.

CEMENTOS PACASMAYO S.A.A.

Diego Roda Lynch

Stock Market Representative