Enauta Participações S A : Update on Reserves Statement

Enauta Participações S.A. | CNPJ/MF nº 11.669.021/0001-10 | Publicly-held Company

MATERIAL FACT

Update on Reserves Statement

Rio de Janeiro, January 19th, 2023

Enauta Participações S.A. ("Company," "Enauta," B3:ENAT3) in line with the best corporate governance practices, informs its shareholders and the market in general, the update on the Atlanta and Manati Field reserves, with base date as of December 31st, 2022, issued by independent advisory firm, Gaffney, Cline & Associates (GaffneyCline).

When compared to the reserves also certified by GaffneyCline for June 30th, 2022, after approval by the Brazilian National Agency of Petroleum, Natural Gas and Biofuels (ANP) of the new Field Development Plan (and consequent extension of the concession term until 2044), Atlanta's reserves increased by 2.1%.The production was 3.4 million barrels from January to December 2022.

The scenario for the Atlanta Field remains unchanged in relation to the report issued in June 2022, keeping the start-up date for the Full Development System (FDS), considering the extension of the concession contract for another 11 years, the production through six wells after the start of FDS operations in 2024and the drilling of four additional wells by the end of the decade.

For Manati, the revision of reserves in relation to the report issued on December 31st, 2021 is basically dueto the average daily production of 2.5 MM m³ of gas in 2022.

Below, the amounts reported with the base date as of December 31st, 2022:

	Atlanta Field	Volume	NPV10 before tax
	(100% Enauta)	(million bbl)	(US$ million)*
	1P	93.2	2,148
	2P	158.9	3,289
	3P	181.2	3,938

Manati Field	Volume	NPV10 before tax
(45% Enauta)	(million boe)	(US$ million)*
1P	7.8	121.6
2P	9.1	152.8
3P	10.4	178.3

* Net present value before taxes.

The Company now holds 2P reserves of 168.0 million barrels of oil equivalent (boe) based on the new report of the Atlanta and Manati fields, as shown in the table below, with an increase of 50.3 million boe in reserves compared to December 31st, 2021.

Volume	Atlanta Field	Manati Field
(million boe)	(100% Enauta)	(45% Enauta)

Total Enauta

1P	93.2	7.8	101.0
2P	158.9	9.1	168.0
3P	181.2	10.4	191.6

Phone: [phone] | E-mail: [e-mail] | www.enauta.com.br/ri

Enauta Participações S.A. | CNPJ/MF nº 11.669.021/0001-10 | Publicly-held Company

Manati gas reserves were converted to oil equivalent volumes using a conversion factor of 1,000 standardcubic meter equals to one cubic meter of oil equivalent.

The net present values (NPVs) contained in the tables above do not represent a GaffneyCline opinion asto the market value of the subject assets, nor any interest in them.

Full reports of Atlanta and Manati Fields can be accessed on the Company's website:

https://www.enauta.com.br/en/our-location/report/.

For further information, please contact the Investor Relations area.

ABOUT ENAUTA

Enauta is one of the leading private companies in the exploration and production sector in Brazil. The Company has a balanced asset portfolio spread through the Brazilian coast and two producing assets: its 45%-owned Manati Field, one of the main suppliers of gas to the Northeast region of Brazil, and the Atlanta Field, located in the deep waters of the Santos Basin, where it is the operator, with a 100% ownership stake. Listed on the Novo Mercado of B3 since 2011, under the ticker symbol ENAT3, Enauta is committed to the sustainability of its operations, having invested heavily in improving good governance and compliance practices. For more information, visit us at www.enauta.com.br.

Phone: [phone] | E-mail: [e-mail] | www.enauta.com.br/ri