IRB Brasil Resseguros S A : Notice to the Market - Monthly Periodic Report January 2021

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, March 22nd, 2021 - IRB-Brasil Resseguros SA (B3: IRBR3) ("IRB Brasil RE" or "Company"), for the purposes of CVM Instruction 358/02, informs its shareholders and the market in general, that it filed a 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 January 2021, which reconciles the SUSEP information with the Business Vision model. It should be noted that these data are subject to change and have not been audited.

Noting the results improvement trend for the current year, find below some highlights of January 2021 information:

Written Premium: In January 2021, totaled R$813.6 million, an increase of 29.9% in relation to January 2020, being R$463.8 million in Brazil and R$349.8 million abroad. With growth of 110.7% in Brazil compared to January 2020 and a reduction of -13.9% abroad in the same concept, this reduction is in line with the strategy of focusing on businesses, lines and markets that can add value.

Earned Premium: The earned premium totaled R$410.9 million with an increase of 20.9% in relation to the earned premium of January 2020.

Loss Ratio (Claim Expenses/Earned Premiums) of 70.6% in the period, equivalent to claim expenses of R$290.1 million, already in line with the loss ratio expected by the Company.

Results before taxes was positive in R$30.0 million, an improvement in relation to January 2020, which presented a negative result of R$190.2 million.

Net income of R$17.9 million compared to a net loss in January 2020 of R$132.0 million.

During the presented period, no one-off events were observed that deserve to be highlighted. The results of the continued and/or discontinued businesses will only be reported quarterly when the Quarterly Financial Statements are released.

The spreadsheet with more detailed historical data can be accessed athttps://ri.irbre.com/en/financial-information/interactive-spreadsheets-historical-data/.The full report submitted to SUSEP, from which all data in this press release is derived, can be accessed at:http://www2.susep.gov.br/menuestatistica/SES/principal.aspx.

Werner Romera Süffert

Chief Financial and Investor Relations Officer

Investor Relations |[e-mail] | [phone]/0211/0209