São Paulo, March 8, 2023 - Companhia Siderúrgica Nacional ("CSN") (B3: CSNA3) (NYSE: SID) discloses its fourth quarter of 2022 (4Q22) and 2022 yearly financial results in Brazilian Reais, with all financial statements consolidated in accordance with accounting practices adopted in Brazil issued by the Accounting Pronouncements Committee ("CPC"), approved by the Brazilian Securities and Exchange Commission ("CVM") and the Federal Accounting Council ("CFC") and in accordance with international financial reporting standards (“IFRS”), issued by the International Accounting Standards Board (“IASB”).

The comments address the Company's consolidated results in the fourth quarter of 2022 (4Q22) and the compared are for the third quarter of 2022 (3Q22), the fourth quarter of 2021 (4Q21) and the year 2021. The price of the dollar was BRL 5.58 at 12/31/2021; BRL 5.41 on September 30, 2022, and BRL 5.22 on 12/31/2022.

2022 and 4Q22 FINANCIAL RESULT

Consolidated Table - Highlights

¹ Adjusted EBITDA is calculated from net income (loss), plus depreciation and amortization, taxes on income, net financial result, income from investment participation, income from other operating income/expenses and includes a proportional participation of 37.27% of the EBITDA of the joint subsidiary MRS Logística.

² Adjusted Ebitda Margin is calculated from Adjusted Ebitda divided by Management Net Revenue.

³ Adjusted Net Debt and Adjusted Cash/Availability consider 37.27% of MRS, in addition to not considering Forfaiting and Cashed Risk transactions.

Consolidated Results

2022 and 4Q22 FINANCIAL RESULT

·        The equity result was positive at R$ 71 million in 4Q22, a reduction of 24% compared to the last quarter, as a consequence of seasonality with a weaker performance of MRS, caused by the constant rains recorded in the quarter. In 2022, equity reached R$ 238 million, an annual increase of 30% due to MRS's solid operating performance throughout the year.

·        In 4Q22, CSN recorded a Net Income of BRL 197 million, even considering the greater impacts with financial expenses and exchange variation verified in the period. In 2022, net income was R$ 2.2 billion, a reduction of 84% compared to 2021, a period marked by the Company's historical record of profitability and by the effect of CSN Mineração's IPO.

Adjusted EBITDA

*The Company discloses its adjusted EBITDA excluding participation in investments and other operating income (expenses) because it understands that it should not be considered in the calculation of recurring operating cash generation.

2022 and 4Q22 FINANCIAL RESULT

Adjusted EBITDA (BRL MM) and Adjusted EBITDA Margin¹ (%)

¹ Adjusted EBITDA Margin is calculated from the division between Adjusted EBITDA and Adjusted Net Revenue, which considers the 100% stakes in CSN Mineração's consolidation and 37.27% in MRS.

Adjusted Cash Flow¹

Adjusted Cash Flow in 4Q22 was negative in BRL 146 million, affected mainly by the higher volumes of Capex and financial expenses, in addition to the increase in taxes paid in the period.

Adjusted Cash Flow¹ on 4Q22 (BRL MM)

¹ The concept of adjusted cash flow is calculated from adjusted Ebitda, subtracting Ebitda from Jointly Controlled Companies, CAPEX, IT, Financial Results and Changes in Assets and Liabilities², excluding the effect of the Glencore advance.

² Adjusted Working Capital is composed by the change in Net Working Capital, plus the change in accounts of long-term assets and liabilities and disregarding the net change in IT and SC

Indebtedness

As of December 31, 2022, consolidated net debt reached BRL 30,471 million, with the leverage indicator measured by the Net Debt/EBITDA ratio reaching 2.2x. This increase on leverage is a consequence of a series of disbursements made through the period, mainly those related to the acquisition of CEEE-G like the disbursement of BRL 2.0 billion regarding the concession payment, in addition to distribution of dividends. However, when considering the resources with prepayment of iron ore obtained in January in the debt at the end of the year, the leverage would be 2.0x and within the guidance disclosed by CSN, which reinforces the transitory and exceptional effect of this leverage above the ceiling. Additionally, even with the largest volume of financial disbursements, CSN maintained its policy of carrying a high cash, which in this quarter reached the level of BRL 12 billion.

2022 and 4Q22 FINANCIAL RESULT

¹ Net Debt / EBITDA: To calculate the debt considers the final dollar of each period and for net debt and EBITDA the average dollar of the period.

The Company remains active in its goal of extending the amortization period, focusing on long-term operations and the local capital market. Among the main movements of 4Q22, the 12th and 13th debentures were issued, in the amount of BRL 1.9 billion, with maturities in 2027, in addition, the conclusion of the 1^st issue of debentures from the Company’s subsidiary Prada in the amount of BRL 130 million maturing in 2024 and the 1^st debenture issue of the State Electric Power Generation Company - CEEE-G, in the amount of BRL 1.9 billion. also maturing in 2024.

Amortization Schedule (BRL Bi)

¹ IFRS: does not consider participation in MRS (37.27%) .

² Gross Debt/Management Net considers participation in MRS (37.27%) and gross interest.

³ Medium term after completion of the Liability Management Plan.

Foreign Exchange Exposure

The accumulated net foreign exchange exposure in the 2022 balance was USD 779 million, as shown in the table below, resulted from the increase in the Hedge Accounting operations and in line with the company's policy of minimizing the impacts of exchange rate volatility on the result.

The Hedge Accounting adopted by CSN correlates the projected flow of dollar exports with future debt maturities in the same currency. Thus, the exchange variation of the dollar debt is temporarily recorded in the equity, being brought to the result when the dollar revenues from said exports occur.

2022 and 4Q22 FINANCIAL RESULT

Investments

A total of BRL 1,036 million were invested in 4Q22, a performance 23% higher than the amount invested on last quarter, as a consequence of the acquisition of large equipment’s for cement operations and the incorporation of current investments on the operations of Cimentos Brasil. In the year, BRL 3,413 million were invested, an increase of 16% compared to 2021, mainly impacted by the Cimentos Brail incorporation and the acceleration of Capex at the end of the year.

Net Working Capital

The Net Working Capital (NWC) applied to the business totaled BRL 2,480 million in 4Q22, an increase of 85% when compared to 3Q22 as a consequence of the punctual increase in inventories and accounts receivable, partially offset by the increase with suppliers. Compared to the same period last year, the Company's NWC was 66% higher, mainly impacted by the increase in receivables due to longer receipt times.

The calculation of the Net Working Capital applied to the business does not take glencore's advance, as shown in the following table:

2022 and 4Q22 FINANCIAL RESULT

¹ Other CCL Assets: Considers advance employees and other accounts receivable.

² Other CCL Liabilities: Considers other accounts payable, dividends payable, installment taxes and other provisions.

³ Inventories: Does not consider the effect of the provision for inventory losses. For the calculation of the SME are not considered the balances of warehouse stocks.

Dividends

As disclosed on the Material Fact published on November 21, 2022, through the Asset Restructuring Agreement entered into between Rio Purus Participações S.A. and CFL Participações S.A. (“CFL”), the shareholders committed to vote in favor of the distribution of dividends of up to BRL 2.3 billion at the 2023 Annual General Meeting. Therefore, the proposal for the allocation of results for the year 2022 reflects this amount, already considering the R$ 700 million declared as interest on equity on December 23, 2022.

Closing of the CEEE-G

On October 21, 2022, the Company concluded the acquisition process of 66.23% of the shares issued by the State Companhia Estadual de Geração de Energia Elétrica – CEEE-G for the total price of BRL 928 million. The process also included the disbursement of more BRL 2.0 billion for the grant bonus. Additionally, on December 22, 2022, CSN acquired another 32.74% stake of CEEE-G, for the transfer of shares held by Centrais Elétricas Brasileiras S/A, in the amount of BRL 367 million. As a result, CSN now holds 99.0% of CEEE-G, adding 910Mw of Installed Capacity, with 15 own assets, 11 minority interests and 3 wind projects.

2022 and 4Q22 FINANCIAL RESULT

Results by Business Segments

2022 and 4Q22 FINANCIAL RESULT

Steel Result

According to the World Steel Association (WSA), global crude steel production accrued 1,831.5 million tons (Mt) in 2022, representing a 4.3% decline compared to 2021, also reflecting the effects of the conflict between Russia and Ukraine and its developments in the European market. In 2022, the European Union reduced its production by 10.5% due to the closure of several steel plants as a consequence of the energy restriction verified after the conflict began. In the year, only the Middle East showed increased production due to the announcement of major real estate and infrastructure projects in the region. In turn, China produced 55.3% of the global volume (1,013 Mt), which corresponds to a retraction of 2.1 p.p. in relation to the same period and 2021, mainly resulting from the direct impact of production interruptions due to covid's zero policy and heat wave, which increased energy rationing in the country. However, the outlook for 2023 is positive as we see several stimuli being announced to resume China's economic growth, apart from the easing of policies against Covid. Brazil produced 36.1Mt in 2022, which corresponds to an annual decline of 5.8%, mainly impacted by the cost pressures faced throughout the year, in addition to a more difficult basis for comparison due to the strong volumes verified in the previous year.

Steel Production (thousand tons)

In the case of CSN, plate production in 4Q22 totaled 959,000 tons, a performance 6.5% lower than in the previous quarter. In turn, the production of flat laminates, our main operation market, reached 873 kton, which represents a 1.4% reduction compared to 3Q22, in line with the operational seasonality. In 2022, plate production reached 3,774,000 tons, down 7.3% from the previous year, due to scheduled stoppages and pressures on production costs and on the supply chain, due to the conflict between Russia and Ukraine.

2022 and 4Q22 FINANCIAL RESULT

Sales Volume (Kton) - Steel

Total sales reached 1,008 thousand tons in the fourth quarter of 2022, a volume 1.6% lower than in the same period of 2021. When analyzing the behavior in the different markets, it is perceived that the domestic market sales were the main responsible for the contraction, adding up to 740 thousand tons of sold steel products, which represents a reduction of 14% when compared to 3Q22, as a result of the seasonality that was even more pronounced at the end of this year due to the World Cup and uncertainties related to the political environment. In the foreign market, 4Q22 sales totaled 269 thousand tons and were 11% lower than those in 3Q22, considering a lower sales volume verified in the European market. In the quarter, 8,000 tons were exported directly and 261,000 tons were sold by subsidiaries abroad, of which 39,000 tons by LLC, 154,000 tons by SWT and 69,000 tons by Lusosider.

Regarding 2022, the total sold volume was 4,392 thousand tons, a 4.6% lower level than in 2021, with 3,077 thousand tons being sold from the domestic market and 1,315 thousand tons abroad. Of this total, the foreign market showed the greatest retraction (-7.8% p.a.) explained by the energy instability and lower growth rates in the European market.

In relation to the total sales volume in 4Q22, all segments showed a retraction compared to the previous quarter, with Industry (-25.7%) and Distribution (-9.4%) appearing among the main highlights. In the annual comparison, the year was positive, with an increase in sales volume in most sectors, with Distribution (+29.6%) and Construction (+20%) being the main beneficiaries and were partially offset by Home Appliances (-42.6%) and Packaging (-14.3%) segments.

2022 and 4Q22 FINANCIAL RESULT

2022 and 4Q22 FINANCIAL RESULT

Mining Result

2022 was marked by a series of challenges for the mining sector. The high volume of rainfall in Brazil, the war between Russia and Ukraine and the uncertainties related to the Chinese economy were elements that brought instability to the transoceanic iron ore market throughout the year. Additionally, regarding China, the restrictive policies put in place last year by the Government as ways to curb Covid's waves in the country, the housing market crisis and energy rationing generated by the heat wave, in the third quarter, impacted industrial production and had a direct impact on the price of iron ore. On the other hand, since the end of last year, several policies of economic stimulus and easing in health rules have been observed, especially after the re-election of Xi Jinping for his third term, which has improved not only the expectations of the iron ore market, but also the estimates of Chinese GDP growth for the year 2023. In the midst of this context and despite reaching values below USD 80.0/ton, the price of iron ore ended the quarter with a price above USD 115.0/ton, with an average of USD 99.00/dmt (Platts, Fe62%, N. China) in 4Q22, 4.17 % lower than 3Q22 (USD 103.31/dmt) and 9.68% below 4Q21 (USD 109.61/dmt).

In relation to sea freight, the Route BCI-C3 (Tubarão-Qingdao) presented an average of USD 20.58/wmt in 4Q22, which represents a significant reduction of 14.4% in relation to the shipping cost from the previous quarter, as a reflection of a bigger offer of ships in the transoceanic market, in addition to the lower pressure on fuel costs.

2022 and 4Q22 FINANCIAL RESULT

·        Adjusted EBITDA reached BRL 1,779 million in 4Q22, with quarterly EBITDA margin of 50.4% or 14.2 p.p. higher than that recorded in 3Q22. The increase in realized prices combined with the increase in sales were the main drivers of the result that made the margin of the quarter exceed the mark of 50%. In the year, Adjusted EBITDA reached BRL 6,072 million, a reduction of 43.4% compared to the previous year's record result, reflecting not only the lowest production recorded though year, but also the lowest average price practiced in the period.

Cement Result

Despite the challenges that the rise in interest rates has brought to the real estate segment, the cement market has shown some resilience, with infrastructure projects and structured construction helping to compensate for the smaller launch of new housing units and fall of informal construction. And according to the National Union of the Cement Industry (SNIC), cement sales reached 63,052 Mton in 2022, down less than 3% compared to the previous year. For 2023, the expectation of the syndicate is that the segment will grow by 1%, driven by the increase in infrastructure projects, such as road and sanitary. In addition, the new government has shown interest in strengthening housing programs for low incomes, which can result in even greater dynamism for the sector. On the other hand, the Industrial Entrepreneur Confidence Index (ICEI), measured by the Brazilian Chamber of the Construction Industry (CBIC), presented a deceleration in the values and presented an average of 50.8, still a positive level, but that shows greater uncertainty of the entrepreneurs in relation to the future perspectives. 

In the case of CSN Cimentos, the Company consolidated the operating and financial results of Cimentos Brasil (formerly Lafarge Holcim Brasil) and intends to advance in the process of capturing synergies. Sales in the 4Q22 totaled 2,897 kton, a result 53.3% higher than the previous quarter, as a result of the increase in the participation of Cimentos Brasil's operations. In 2022, the volume sold was 7,243 kton, an increase of 53.8% compared to the previous year, also reflecting the integration of Cimentos Brasil, even considering only 4 months of operation in the year's results.

2022 and 4Q22 FINANCIAL RESULT

* LafargeHolcim's operations were integrated in September 2022.

Energy Result 

The year of 2022 was a historic year for the Energy operations segment of the Company, with acquisitions of four operations that increased installed capacity by 1,066.3 MW, in addition to adding another 356MW in minority interests. With this, the Company, in addition to becoming self-sufficient, began to have an energy surplus that will later be sold in the free market, making the segment a true business unit for CSN. Additionally, the benefit of self-production will allow a reduction of approximately 60% in energy costs, bringing significant impacts on the profitability of the segments. 

In 4Q22, the traded energy volume generated a net revenue of BRL 154 million, an increase of 221% over the last quarter, recovering operating results with a positive adjusted EBITDA of BRL 27 million and EBITDA margin of 17.8%. In 2022, energy operations achieved revenues of BRL 293 million, with an EBTDA of BRL 3 million and EBITDA margin of 1.1%, representing only one quarter of incorporation of CEEE-G.

Logistics Result 

Railway Logistics: In 4Q22, net revenue reached BRL 608 million, with adjusted EBITDA of BRL 270 million and adjusted EBITDA margin of 44.5%. Compared to 3Q22, net revenue decreased 7% due to the seasonality of the operation, with a reduction in transported goods. In the same comparison line, adjusted EBITDA was 17.3% lower. In the year, net revenue reached BRL 2,312 million in 2022, an annual increase of 25.7%, while Adjusted EBITDA grew 25%, reaching BRL 1,104 million and with an EBITDA margin of 47.8%.

2022 and 4Q22 FINANCIAL RESULT

Port Logistics: In the 4Q22, 335,000 tons of steel products were shipped by Sepetiba Tecon, in addition to 15,000 containers, 3,000 tons of general cargo and 281,000 tons of bulk. Compared to the previous quarter, the Company had a change in its shipment mix, returning the relevance of the volume of grains, with a quarterly increase of 4.9%, against an 89% reduction in overall cargo volume. As a result, the net revenue of the port segment was 25.8% higher than in the last quarter, reaching BRL 86 million in 4Q22 and positively impacting the adjusted EBITDA of the period, which achieved BRL 30 million in the quarter, with an EBITDA margin of 34.8%. In 2022, the segment recorded net revenue of BRL 308 million and EBITDA of BRL 90 million, with a margin of 29.3%, levels practically stable compared to 2021. Were shipped in 2022 by Tecon, 1,322,000 tons of steel products, in addition to 62,000 containers, 42,000 tons of general cargo and 918,000 tons of bulk.

2022 and 4Q22 FINANCIAL RESULT

ESG - Environmental, Social & Governance

ESG COMMITMENTS - CSN GROUP

2022 and 4Q22 FINANCIAL RESULT

ESG PERFORMANCE - CSN GROUP

The Company continues following the model of reporting its ESG results aligned with relevance and materiality for all stakeholders, in order to offer greater transparency and access to the main results and indicators, enabling its monitoring in an agile and effective way.

Quantitative indicators are presented in comparison with the previous annual period, for better monitoring. Some metrics are compared with the same period of the previous year, and others with the average of the previous period, ensuring a comparison based on seasonality and periodicity.

More detailed historical data on CSN's performance and initiatives can be verified in Integrated Report 2021. The Integrated Report follows internationally recognized guidelines and frameworks, such as GRI (Global Reporting Initiative), IIRC (International Integrate Reporting Council), SASB (Sustainability Accounting Standards Board) and TCFD (Task Force on Climate Related Financial Disclosures) and are presented with due correlation with the SDGs (Sustainable Development Goals) and principles of the UN Global Compact. The assurance of ESG indicators and targets occurs annually for the closing of the Integrated Report, so the information contained in the quarterly releases is subject to adjustments resulting from this process. The next Integrated Report, for the period 2022, is expected to be published in April 2023, in which details regarding the status and performance of all goals and indicators will be presented.

It is also possible to monitor CSN's ESG performance in an agile and transparent manner, on our website, through the following e-mail address: ESG.csn.com.br

ESG RATING

External recognitions in indexes and ratings shows that the Company is evolving in transparency and reporting of the main ESG actions and indicators, and in line with sustainable development.

The year 2022 provided an evolution in three important ESG ratings. CSN received a new rating from Sustainalytics, reducing the score related to ESG risks from 39.1 to 26.0. Of the 155 steel and mining companies evaluated globally, CSN achieved the 4th best score in the industry.

CSN was also the only Brazilian company in the steel, mining and construction sector named in the S&P Global Sustainability Yearbook 2023, being classified as the company in the steel industry that has advanced the most in ESG practices in the world, receiving the stamp of "Industry Mover". And also, in the rating of the MSCI, CSN went from the score "CCC" to "B".

Additionally, in response to external requests from investors and other stakeholders, the Company reports to CDP (Disclosure Insight Action) the guidelines followed in relation to Climate Changes and Water Safety. In 2022, CSN Mineração's score, company controlled by CSN, evolved on Climate Changes from "B -" to "B" and from "C" to "B" in Water Safety. The CSN Group, despite the even more restrictive changes in methodology, maintained the scores achieved in 2021, respectively B for Climate Change and B- for Water Safety.

2022 and 4Q22 FINANCIAL RESULT

PERFORMANCE OF THE MAIN ESG TARGETS

	Indicators¹	Unit	Indicator Base Year	2022	Status	Goal	Year
Environmental	Steel Emission Intensity (WSA)2	tCO2and/t raw steel	2.10 (Base year 2018)	1.99		1.68	2035
	Intensity of Emission Cements (CSI)3	kgCO2and/t cement	519 (Base year2020)	481		374	2030
	Mining Emission Intensity (GHG)4 and 5	kgCO2and ore /t	5.77 (Base year 2019)	7.24		4.04	2035
Social	Frequency Rate6	CAF+SAF	2.46 (Base year 2020)	1.79		1.72	2030
Governance	Diversity (in the functional women framework)	%	14% (Base year2020)	20.5		28%	2025

¹ The units acquired in 2022 by CSN Cimentos and CSN Energia were not incorporated for this report.

² Considers emissions according to WSA methodology and production of UPV and SWT units.

³ In 2022, the CSN Cimentos Alhandra unit began to be considered in the data management of CSN Cimentos.

⁴ Considers the emissions of scopes 1 and 2 divided per ton of iron ore produced at CSN Mineração, according to the methodology of the Brazilian GHG Protocol Program.

⁵ Considers the emissions only of the mobile combustion category of Scope 1 of CSN Mineração that represent 95% of the scope 1 emissions of CSN Mineração, emphasizing that the emission of scope 2 is zero due to the electrical consumption coming from 100% of renewable sources. The data reported in the Company's Integrated Report 2021 considers the total emissions of csn mining, scopes 1 and 2.

⁶ The rate considers accidents with and without removal of own employees and third parties/1 million hours worked.

2022 and 4Q22 FINANCIAL RESULT

CLIMATE CHANGE

In the last quarter of 2022, during CSN Day, CSN announced its ambition to provide society with essential carbon neutral emission materials by 2050. In addition, the MAC curve (marginal abatement cost curve) of the Steel industry was updated, with assumptions of reduction of emissions and cost of detailed projects, in which were also incorporated the projects of emission reduction of SWT in the Blue phase, which extends until 2030. The Mining MAC curve was also reviewed, considering the projects to reduce pre-defined emissions in the construction of the goal of reducing GHG emissions by 2035 and neutrality by 2044. In 2023, the MAC curve of CSN Cimentos Brasil will be revised and updated with the entry of the new Brazilian plants acquired (Cimentos Brasil and Alhandra).

Also, in 4Q22, CSN finalized the quantitative assessment of climate risks for all business segments and its first study of climate scenarios. These two fronts allow Company’s managers to consider factors related to climate change in strategic decision-making. The study will be made available in greater detail in the Integrated Report 2022, scheduled for publication in April 2023.

In 2022, there was a reduction of 5% on intensity of the Steel industry in relation to the base year. The reduction is justified by the better performance of the Presidente Vargas Plant (RJ) and the use of renewable energy at SWT in Germany.

In cement operations, the Alhandra (PB) unit began to make up the annual report. This unit has an average emission intensity higher than other CSN plants (625 kgCO2e/t cement). However, even with the entry of Alhandra, there was a 7% reduction in GHG emissions compared to 2020. This is justified by the entry of the co-processing project in the Arcos unit, increasing the rate of alternative fuels, contributing to the decarbonization journey.

The year 2022 was also marked by heavy rains in the first quarter in the state of Minas Gerais that substantially damaged the operation and production at CSN Mineração. As a consequence of these factors, a specific mobile combustion emission (>95% of CSN Mineração's Scope 1 emissions) of 7.24 kgCO2e/ton of ore was recorded, 15% higher than 2021. New projects are expected to enter and decarbonization is expected to be more intense only in 2024.

ENVIRONMENTAL MANAGEMENT

NATURAL CAPITAL - ENVIRONMENTAL INDICATORS

¹ Considers all steel units and cement units in the CSN Group.

² Considers all csn group producing units in Brazil and abroad

² Considers all csn group producing units in Brazil and abroad

2022 and 4Q22 FINANCIAL RESULT

² Considers all csn group producing units in Brazil and abroad

³Considers waste intended for co-processing, recycling, refining and area recovery

DAM MANAGEMENT

In 2022, all dams of CSN Mineração – a company controlled by CSN – were at zero emergency level, that is, with stability guaranteed according to current national legislation. In continuity with the decharacterization schedule of the dams, the decharacterization of the Vigia and B5 Auxiliary Dams were completed, and the decharacterization process of Barragem do Vigia is ongoing, which will be completed in the first half of 2023, in addition to B4, with completion scheduled for 2028, as scheduled:

The stabilization works of the B2A Dam, belonging to Minérios Nacional, a company of the CSN Group, are also underway and which in 2022 was classified as emergency level 02. Due to advances in the works and the constant evolution in safety factors, the framework of the structure at level 1 and the continuity of the decharacterization process are expected to finish at the first quarter of 2023, the decharacterization is expected to be completed in 2026.

SOCIAL DIMENSION

HEALTH AND SAFETY AT WORK

The health and safety of people is the Company's top priority and, in 2022, the lowest historical level of the frequency rate (CAF+SAF: accidents with and without removal of own employees and third parties) was recorded. There were 1.79 accidents/million man-hours worked, a decrease of about 25% compared to 2021, which is the best indicator in the last 8 years, and the largest percentage of reduction since the beginning of the compilation of data from the units in 2014, establishing a new milestone for the CSN group. In addition, the year was marked by the absence of accidents with the removal of own employees in the following units: Cements (VR), Alhandra (PB), Ores Nacional (Fernandinho), Porto Real and Prada Distribuição.

¹ Considers all csn group units in Brazil.

2022 and 4Q22 FINANCIAL RESULT

PEOPLE MANAGEMENT

Diversity among people is a lever for CSN's innovation and business growth, which promotes a transformation of our society. Initiatives and actions related to the evolution of talent recruitment, evaluation and recognition processes reflect in practice mechanisms that promote gender representativeness and equality, people with disabilities (PCDs) and minority groups in operational positions and leadership positions. In 2020, the goal of doubling the female workforce at CSN was set by 2025, from 14% to 28%. As a result, the result of the representation of women in the CSN Group increased from 17.5% in December 2021 to 20.5% in December 2022, an increase of 17% in the period.

¹ Data consider employees allocated in Brazil, CLT, Apprentice, Internship and Program - Empower

² Data does not consider employees "Non-CLT" and "Internship Program".

VALUE CHAIN

In 2022, 538 suppliers were evaluated in social and environmental criteria considering the chain of all units in Brazil. Additionally, in 4Q22, CSN developed a specific ESG Risk Assessment questionnaire for 100 suppliers indicated as critical for the Company that addresses topics such as: health and safety management, community engagement, diversity and inclusion, whistleblowing channel, code of ethics, certifications, climate risk management, water scarcity and biodiversity.

The diagnosis will help CSN assess and manage potential socio-environmental and imaging risks, as well as influence its supply chain in the adoption of best market practices.

¹ Considers CSN Group in Brazil.

² Percentage over total suppliers in each category. Those suppliers who are in the same state (federative unit) of the evaluated operational unit are considered "local" as "local" as "local" as "local" of the operational unit evaluated.

SOCIAL RESPONSIBILITY

In 2022, 4,643 young people were directly benefited and 246,916 people were impacted by the projects developed or supported by the CSN Foundation. BRL 26 million were invested in social responsibility, reaching more than BRL 200 million in the last three years for social projects. Among them, the Garoto Cidadão program stands out, a sociocultural project that serves 2,533 children and adolescents in the main cities where the company is inserted. In the last quarter of 2022, two new units were inaugurated, one in the urban area of Coxim/MS and the other in Heliopolis/SP. In total, more than 10,000 young people have already passed through the project.

2022 and 4Q22 FINANCIAL RESULT

¹ Young people benefited by the projects Citizen Boy, Empower, Young Apprentice, Internship, Steel Drums and Football.

² Public present in the public presentations, carried out by the projects: Citizen Boy, Truck, Steel Drums, Cultural Center and Stories That Stay.

In continuity with the legacy built by the CSN Fundação, the Company implemented in 2022 a new instrument to integrate its strategic planning of social-private investment: the Theory of Change of the CSN Group (access here). Focusing on improving the economic, social and environmental conditions of local communities, this new tool determines a strategic positioning of territorial development based on contemporary models of Corporate Social Investment (CSI). The theory is based on three strategic pillars: urban entrepreneurism, urban jobs, and rural productive inclusion. More details on the process of building and developing the Theory of Change will be made available in the Integrated Report 2022, scheduled to be published in April 2023.

Additionally, in compliance with the commitment signed in 2021, CSN Mineração and CSN Fundação began in 4Q22 the development of a due diligence on human rights in the municipality of Congonhas/MG. In partnership with the Center for Human Rights and Companies of the Getúlio Vargas Foundation, a research was initiated focusing on the internal evaluation of processes, systems and people, regarding the identification and management of Adverse Risks to Human Rights in the communities close to the operation of the Casa de Pedra mine, based on the UN Guiding Principles framework for Business & Human Rights. The completion of the process and its developments are planned for the first half of 2023.

For more information, visit the website: www.fundaçaocsn.org.br.

2022 and 4Q22 FINANCIAL RESULT

Capital Markets

In the fourth quarter of 2022, CSN's shares appreciated by 14.4%, while the Ibovespa index declined by 0.3%. In 2022, CSN shares fell by 41.8% while the Ibovespa rose by 4.7%. The average daily value (CSNA3) traded on B3, was BRL 185.21 million in 4Q22 and BRL 223.51 million in 2022. On the New York Stock Exchange (NYSE), American Depositary Receipts (ADRs) of the Company appreciated by 16.0% in dollars, while the Dow Jones index rose by 15.4%. The average daily trading volume of ADRs (SID) on the NYSE in 4Q22 was US$ 10.9 million.

Result Conference Call:

Some of the statements contained herein are future perspectives that express or imply expected results, performance, or events. These perspectives include future results that may be influenced by historical results and statements made in 'Perspectives'. Current results, performance and events may differ significantly from hypotheses and perspectives and involve risks such as: general and economic conditions in Brazil and other countries; interest rate and exchange rate levels, protectionist measures in the U.S., Brazil and other countries, changes in laws and regulations, and general competitive factors (globally, regionally, or nationally)

2022 and 4Q22 FINANCIAL RESULT

INCOME STATEMENT

CONSOLIDATED - Corporate Law - In Thousands of Reais

2022 and 4Q22 FINANCIAL RESULT

BALANCE SHEET

CONSOLIDATED - Corporate Law - In Thousands of Reais

2022 and 4Q22 FINANCIAL RESULT

CASH FLOW

CONSOLIDATED - Corporate Law - In Thousands of Reais

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.