Empresas CMPC S A : Material Fact - July 9, 2021

July 9th, 2021

Comisión para el Mercado Financiero

Santiago, Chile

Ref.: Material Fact

Empresas CMPC S.A.

Securities Registry Number Nº115

Dear Sirs:

Pursuant to what is laid down in articles 9 and 10, second paragraph of the Securities Market Law No. 18.045, I hereby inform you that in the ordinary session held today, the Board of Directors of Empresas CMPC S.A. ("the "Company") agreed to modify the Dividend Policy that was approved in the board meeting held on April 8, 2021 and reported to the Ordinary Shareholders' Meeting held on April 29, 2021.

Considering the positive evolution of the Company's businesses this year, explained by a greater dynamism in the pulp and paper markets, the good performance of its operations and the solid liquidity position it has, the Board of Directors agreed to (i) increase the amount to be distributed as dividends from 30% to 100% of the Distributable Net Income for 2021, (ii) incorporate the distribution of two additional provisional dividends to the Dividend Policy for 2021, the first being payable in July and the second in September, which shall be added to the provisional dividend payable in December 2021 or January 2022 and to the final dividend, which shall be agreed by the Ordinary Shareholders' Meeting; and (iii) pay the dividends in Chilean pesos or in United States dollars ("Dollars"), to those shareholders who require it.

Regarding the provisional dividend approved for July, the Board of Directors also agreed to distribute the amount of US $ 0.032 per share, from July 30, 2021, dividend No. 275 of the Company, and charged it to the Distributable Net Income for 2021.

The abovementioned provisional dividend shall be paid in Chilean pesos or in Dollars, at shareholders election, according to the following procedure:

1. Those shareholders who choose to receive the payment of the provisional dividend in Dollars, shall request it from the Company, clearly indicating whether the dividend should be paid to them by check in Dollars or by transfer to the requested bank account in Dollars. This request shall be received by the shares department of the Company, no later than the fifth business day prior to the date of the dividend´s payment, by email to [e-mail].

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It will be understood that those shareholders who do not request the payment of the dividend in Dollars in the manner and opportunity set forth herein, shall receive the payment of the dividend in Chilean pesos.

1. Those shareholders who have not requested the payment in Dollars, shall receive the payment according to its equivalent in Chilean pesos, at the dollar observed exchange rate published by the Central Bank on the fifth business day prior to the date of distribution of the dividend, which shall be informed by the Company through a publication that will be made that same day on its website www.cmpc.com. This payment shall be made by deposit in a bank checking account in pesos or by a nominative check, not crossed, payable to the owner of the shares, sent by mail to the address that the shareholder keeps informed in the Company's Register of Shareholders, at the shareholder´s election, which should be informed to the Company's shares department by email to [e-mail].

In the event that a shareholder has not informed the Company for any form of payment as stated above, the respective dividend shall be available in Chilean pesos from the date informed for the payment of the dividend. The shareholder shall contact the Company´s Register of Shareholders to inform the payment method according to letter b) above.

Sincerely,

Francisco Ruiz-Tagle Edwards

General Manager

EMPRESAS CMPC S.A.

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