IRB Brasil Resseguros S A : Notice to the Market - Periodic Information Form

IRB-BRASIL RESSEGUROS S.A.

Corporate Taxpayer's ID (CNPJ): 33.376.989/0001-91

Company Registry (NIRE): 333.0030917-9

Publicly-held Company

NOTICE TO THE MARKET

Rio de Janeiro, January 23, 2023 - IRB-Brasil Resseguros S.A. (B3: IRBR3) ("IRB Brasil RE" or "Company"), pursuant to CVM Resolution No. 44/2021, informs its shareholders and the market in general, that it filed the monthly periodic report to Brazil´s Insurance Regulator - SUSEP, through the FIP - Periodic Information Form. For better understanding, given that the FIP form meets the requirements of accounts demanded by the regulator, the Company has disclosed on its website, a spreadsheet with financial data for November 2022, which reconciles the SUSEP information with the Business Vision model.

The highlights of November 2022 and the first eleven months of the year are found as follows (unaudited data):

Written premium:

In the first eleven months of 2022, written premium reached the amount of R$7,186.4 million, with a reduction of 9.6% compared to the same period of 2021. In Brazil, there was an increase of 1.4%, reaching R$4,922.8 million, while abroad there was a reduction of 26.8% compared to the same period of 2021, with R$2,263.7 million.

In November 2022, written premium totaled R$542.4 million, a decrease of 23.2% compared to November 2021. Premium in Brazil fell 6.9% in the month, to R$402.8 million, while premiums abroad fell 49.0% to R$139.6 million.

Claim expenses:

In the first eleven months of 2022, claims expenses totaled R$4,692.8 million, 9.0% lower when compared to the same period of the previous year. In the YTD 11M22, claims ratio was 104.7%, compared to 98.1% in the same period of 2021. As widely reported, claims in 11M22 were impacted in the Agriculture segment by atypical weather events in the Center- South of Brazil and in the Life segment due to Covid-19.

In November 2022, the claim expense was R$384.6 million, with a claim ratio of 96.0%. Claim expense in November 2021 was R$413.3 million, with a claim ratio of 108.4%.

Net income:

In the first eleven months of 2022, the accumulated net loss was R$633.7 million, compared to a net loss in the same period of 2021 of R$510.4 million.

The net loss for the month of November 2022 was R$48.5 million, compared to a loss of R$113.8 million in November 2021.

It is important to highlight that, by nature, the Company´s activity is subject to fluctuations in results and, therefore, shorter observation periods (monthly or quarterly) may not represent a good basis for future forecast.

Details and further explanation of the Company's results will be presented at the time of the financial statements disclosure, scheduled for Feb 27, 2023.

The spreadsheet with more detailed historical data can be accessed at Interactive Spreadsheets / Historical Data

• IRB Brasil (irbre.com).The full report submitted to SUSEP, from which the data in this press release are derived, can be accessed at: http://www2.susep.gov.br/menuestatistica/SES/principal.aspx.It should be noted that these data are preliminary and subject to changes because of the conclusion of the audit process of the Company's financial statements.

Willy Otto Jordan Neto

Chief Financial and Investor Relations Officer

Investor Relations |[e-mail]