Enauta Participações S A : informs participation in Rio Oil & Gas Rio de

Enauta Participações S.A. | CNPJ/MF nº 11.669.021/0001-10 | Companhia Aberta

NOTICE TO THE MARKET

Enauta informs participation in Rio Oil & Gas

Rio de Janeiro, September 26th, 2022

Enauta Participações S.A. ("Enauta," "Company," B3:ENAT3"), in compliance with Circular Letter No. 7 / 2020- CVM/SEP and following the best corporate governance practices, informs its shareholders and the market in general the participation of the Company and its executives at the Rio Oil & Gas 2022 event, from September 26th to September 29th, at Boulevard Olímpico, Rio de Janeiro.

Event: Rio Oil & Gas 2022

Theme: Special Session - Mature offshore fields

Moderator: Carlos Mastrangelo - COO

Date: September 27th, 2022

Time: 10:50 am (Brasilia time)

Tema: Plenary - Energy Talks

Moderator: Décio Oddone - CEO

Date: September 27th, 2022

Time: 12:00 (Brasilia time)

Theme: Plenary - CEO Talks

Participant: Décio Oddone - CEO

Date: September 27th, 2022

Time: 2:30 pm (Brasilia time)

Theme: Studio - Enauta Vision and the Atlanta Project

Participants: Executive Officers and suppliers

Date: September 27th, 2022

Time: 6:30 pm (Brasilia time)

Additionally, Sustainability Manager, Rebeca Kiperman, will participate in the session "The untapped potential of the oceans for the decarbonization of the planet", on the 28th at 1:00 pm and will mediate the session "ESG KPIs: what do we really need to measure?", also on the 28th at 4:30 pm. Carlos Pedroso, Well Management, will be at the Upstream Works Technical Table, on the 27th at 8:30 am.

Registration available on the event's website.

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.

Telefone: 55 21 3509-5959 | E-mail: [e-mail] | www.enauta.com.br/ri