Companhia Siderúrgica Nacional S A : MATERIAL FACT - Form 6-K

MATERIAL FACT

Companhia Siderúrgica Nacional ("CSN " or "Company"), informs its shareholders and the market in general the guidance updates, as follows:

(i)	Replacement of Consolidated CAPEX from BRL 4.1 billion to BRL 3.0 billion in 2022;

(ii)	Projection of producing a total iron ore volume plus purchases from third parties of 34,000 kton until the end of 2022; and

(iii)

Replacement of the leverage projection, measured by the Net Debt/Adjusted EBITDA index from 1.0x in 2022 to a level between 1.75x and 1.95x between the closings of the annual balance sheets for 2022 and 2023.

Such projections will be included in section 11 of the Company's Reference Form and will be available on the CVM's website in http://www.cvm.gov.br/ and on the Company's website in http://ri.csn.com.br/en , within the legal deadline.

CSN clarifies that the information disclosed in this document represents an estimate and involves market factors beyond the Company's control. Therefore, it does not constitute a promise of performance on the part of the Company and/or its directors and, thus, may undergo further changes.

São Paulo, October 31, 2022.

Marcelo Cunha Ribeiro

CFO and Investor Relations Officer