Hechos Esenciales Emisores Chilenos Un proyecto no oficial. Para información oficial dirigirse a la CMF https://cmfchile.cl

CEMENTOS BIO BIO S.A. 2023-04-27 T-18:00

C

ESSENTIAL FACT
CEMENTOS BÍO BÍO S.A.

Registration of Securities Registry N%122

Santiago, April 27, 2023

Gentlemen
Financial Market Commission
Present

Dear Sirs,

Under the provisions of article 9 and paragraph 2 of article 10 of the Law
N*18.045, and in accordance with the provisions of Section Il of the Character Standard
General N*30 of the former Superintendency of Securities and Insurance, today Commission for the
Financial Market, in my capacity as Corporate General Manager of Cementos Bío Bío
S.A., and expressly empowered to do so, I come to inform you that at the Board
Ordinary Shareholders’ Meeting of Cementos Bío Bío S.A. held on April 27, 2023
It was agreed, inter alia, that:

1. Approve the report, the financial statements for the year 2022, as well as
as well as the report of the Company’s external auditors on the
financial statements indicated above;

2. To approve the distribution of a definitive dividend in the amount of $3,170,652,000,
corresponding to the amount of $12 (twelve pesos) per share, which is equivalent to 30.03%
of profits for the year ended December 31, 2022, payable on account
From May 23, 2023 to shareholders registered in the respective registry to
midnight on the fifth business day prior to the payment date. To this end,
annexed to Form N*1 of Circular N%660 of the former
Superintendency of Insurance and Securities, now the Financial Market Commission;

3. Realized the dividend distribution policy for the financial year 2023,
consisting of distributing at least the equivalent of 30% of the profit of the year, and
either through the distribution of one or more provisional dividends which will be paid
at the time determined by the Board of Directors, and/or through the distribution of a
final dividend agreed by the Ordinary Shareholders’ Meeting within the first
Four-month period of the following business year. All this provided that the utilities that
are obtained or other situations do not make it convenient or necessary to vary this policy
and without prejudice to the power of the Board of Directors to modify it, informing thereof
opportunely;

4. Approve the remuneration of the Board of Directors and the members of the Directors’ Committee, as well as
such as the latter’s operating expenditure budget;

5. Appoint the company PWC Consultores Auditores SpA as external auditors for
the financial year 2023;

6. Designate as risk classifiers of the Company for the year 2023 the
firms Rating firm Humphrey’s Limitada and International Credit Rating,
Limited Risk Rating Company;

7. Reported on the operations referred to in Title XVI of the Law
18.046; and

8. To designate the newspapers “El Sur” of Concepción, and the electronic newspaper “El Líbero”, as
the newspapers where future summonses to Shareholders’ Meetings should be published, and
Other social publications.

Without further ado, we greet you very sincerely,

CEMENTOS BIO-BIO S.A.

Enrique Elsaca Hirmas
Corporate General Manager

SUPERINTENDENCE OF
SECURITIES AND INSURANCE
CHILE

FORM NS [4] ISO INTERNAL -: OFFICE OF PARTIES S VS
DISTRIBUTION OF DIVIDENDS

0.01 Original Information SI__ (simo) 0.02 Submitted :_27-04-2023 (DDMMYA)

1._ IDENTIFICATION OF SOCIETY AND MOVEMENT
101 RUT 91.755.000-K 1.02 Date of submission

Form. original :_27-04- 2023 _ (DDMMYA)
1.03 Name of the Company CEMENTOS BIO-BIO S.A

A A A QA
1.04 N* Securities Registry 122 1.05 Series Affects

CEMENTS 1.07 Individualization of movement

2.__ACUERDO AND AMOUNT OF DIVIDEND
201 Date of agreement 27 – 04 – 2023 (DD MM AA)

2.02 Decision taken: 1 (1: General meeting of shareholders; 2: extraordinary meeting of shareholders;
3: Board session)

2.03 Dividend amount 3,170,652,000 2.04 Type of currency

3, SHARES AND ENTITLED SHAREHOLDERS

264.221.000 3.02 Deadline :_ 17-05-2023 (DOMMAA)

4__ CHARACTER OF THE DIVIDEND
4.01 Dividend rate 2 (1: Provisional; 2: Final minimum mandatory; 3: Final additional or eventual)
402 Year-end 31-12-2022 (DD MM AA)

4.03 Payment method + 1 (1: Money; 2. Optional in money or shares of the issue itself; 3: Optatvo in money
or shares of other Companies; 4: Other modality)

5.01 Payment in money ‘ 5.02 Type of currency

5.03 Payment date 23-05-2023 _ (DDMMYA)

( Continued reverse )

6___ DISTRIBUTION OF THE OPTIONAL DIVIDEND IN SHARES

6.01 Start Date option ll (DD MM AA)

6.02 Option End Date – f – 1 – (DDMMYA)
6.03 Delivery date titles – 1 – 1 – (DDMMYA)
6.04 Series to opt for
(Only if the option is about shares
6.05 aces. post movement of the emission itself)

(Only if the option is on shares of the
RUT. Issuing SOC which the company owns)

Stock Exchange Code
Shares factor: shares to receive x 1 acc. c/right

Acc share price Currency type

7, OBSERVATIONS

– The dividend will be paid from the profits of the year 2022

– Shareholders who have expressly requested it, will be deposited in their respective current accounts
Bank. Shareholders who have also requested it will be paid by cheque addressed to the address that the
shareholder has registered in the Company, by certified mail. For other shareholders, the dividend

will be at your disposal in our offices of Avenida Gran Bretaña N* 1725 of Talcahuano, and Avenida Andrés
Bello 2457, 18th floor, Providencia Santiago.

The notice will be published simultaneously in the newspapers “El Sur” of Concepción and “El Libero”, on May 04, 2023

– Cementos Bío-Bío S.A. is an Open Public Limited Company.

– This dividend is subject to complementary or additional Global Tax, is constitutive of Income and has credits
First Category tributaries.

” The 264,221,000 shares indicated in 3.01 are to date fully paid.

Statement: “The information contained in this form is the faithful expression of the
truth, so I assume the corresponding legal responsibility.”

NAME AND SIGNATURE LEGAL REPRESENTATIVE

Enrique Elsaca Hirmas

Link to the file in CMFChile: https://www.cmfchile.cl/sitio/aplic/serdoc/ver_sgd.php?s567=e784fda21131b084310987a095715d45VFdwQmVVMTZRVEJOUkVVMFRXcE5NMDVSUFQwPQ==&secuencia=-1&t=1682655001

Por Hechos Esenciales
Hechos Esenciales Emisores Chilenos Un proyecto no oficial. Para información oficial dirigirse a la CMF https://cmfchile.cl

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