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                              December 7, 2023

       Marcelo Cunha Ribeiro
       Chief Financial Officer
       National Steel Company
       Av.Brigadeiro Faria Lima, 3400 - 20th floor
       Sao Paulo-SP, Brazil 04538-132

                                                        Re: National Steel 
Company
                                                            Form 20-F for the 
Year Ended December 31, 2022
                                                            File No. 001-14732

       Dear Marcelo Cunha Ribeiro:

              We have limited our review of your filing to the financial 
statements and related
       disclosures and have the following comments.

              Please respond to this letter within ten business days by 
providing the requested
       information or advise us as soon as possible when you will respond. If 
you do not believe a
       comments apply to your facts and circumstances, please tell us why in 
your response.

                                                        After reviewing your 
responses to this letter, we may have additional comments.

       Form 20-F

       Casa de Pedra Mine, page 32

   1.                                                   We note your individual 
material property disclosure beginning in this section. Please
                                                        locate each of your 
material properties within 1 mile, using an easily recognizable
                                                        coordinate system to 
comply with Item 1304(b)(1)(i) of Regulation S-K.
       Our Mining Segment, page 32

   2.                                                   We note that you have 
identified multiple mining properties in your filing without
                                                        differentiating between 
material and non-material properties and without providing or
                                                        distinguishing between 
the summary and individual property disclosures. Please modify
                                                        your disclosure, as 
necessary, to identify each of the mining properties as being either
                                                        material or not 
material and include all the information prescribed for summary
                                                        disclosures in Item 
1303(b) of Regulation S-K. Please include an overview, and a
                                                        summary tabulation of 
resources and reserves. The summary disclosures should be
                                                        clearly identified and 
positioned in advance of the individual property disclosures required
                                                        by Item 1304(b) of 
Regulation S-K. In addition, please provide the criteria that you
 Marcelo Cunha Ribeiro
FirstName  LastNameMarcelo  Cunha Ribeiro
National Steel Company
Comapany7,
December   NameNational
             2023        Steel Company
December
Page 2    7, 2023 Page 2
FirstName LastName
         considered in identifying properties as material.
Mineral Resources, page 33

3.       We understand that all mineral reserves and mineral resources are 
presented on a 100%
         ownership basis, though you only own 78.2% of CSN Minera    o. Please 
modify your
         filing and report all your resources and reserves that are 
attributable to your ownership
         interest as of December 31, 2022. See Item 1303(b)(3)(iii) of 
Regulation S-K.
4.       Please disclose all your mineral resource summaries exclusive of 
reserves at the end of the
         most recently completed fiscal year (December 31, 2022), as required 
by Item
         1303(b)(3)(ii) of Regulation S-K.
5.       Please include the commodity price used, metallurgical recovery, and 
the cutoff grade
         with all your resource and reserve disclosures as required by Item 
1303(b)(3) of
         Regulation S-K.
Mineral Reserves, page 36

6.       Please modify your filing and provide an updated reconciliation with 
depletion due to
         mining activities for your resources/reserves as reported this year 
compared to last year, as
         required by Item 1304(e) of Regulation S-K.
7.       Please state the resources and reserves for both the Engenho and 
Fernandinho mines.
Elizabeth Mines, page 45

8.       Please revise your filing to report each individual property   s 
production by product such
         as iron ore or limestone, etc. as required by Item 1303(b)(2)(i) of 
Regulation S-K.
Pitimbu Mine, page 47

9.       We note your resources in this section and elsewhere in your filing, 
are disclosed as the
         sum of your measured and indicated resources. Please revise your 
filing and disclose all
         your attributable resources into the three separate classes, measured, 
indicated, and/or
         inferred for the most recently completed fiscal year (December 31, 
2022) as required by
         Item 1303(b)(3) of Regulation S-K.
Technical and Economic Use, page 48

10.      Please correct the nomenclature for the Pitimbu mine   s indicated 
reserve.
Resources, Mineral Reserves and Mine Life, page 50

11.      Your disclosure of the Barroso and Pedro Leopoldo plants beginning on 
page 48 indicates
         the same mines, the Capoeira Grande and Mata do Ribeirao supply both 
plants but have
         different resources/reserves. Please review and correct this 
discrepancy.
Exhibit 96.1 Arcos
 Marcelo Cunha Ribeiro
FirstName  LastNameMarcelo  Cunha Ribeiro
National Steel Company
Comapany7,
December   NameNational
             2023        Steel Company
December
Page 3    7, 2023 Page 3
FirstName LastName
Local Geology, page 41, page EA-41

12.      Please modify your filing and insure you have provided at least one 
cross-section of the
         local geology as required by Item 601(b)(96)(iii)(B)(6)(iii) of 
Regulation S-K.
Exhibit 96.1 Arcos - A
QA/QC, page 54, page EA-54

13.      Please modify your filing and provide the opinion of the qualified 
person regarding the
         adequacy of the sample preparation, security, and analytical 
procedures as required by
         Item 601(b)(96)(iii)(B)(8)(iv) of Regulation S-K.
Exhibit 96.1 Arcos - A
Data Validation, page 55, page EA-55

14.      Please modify your filing and provide the qualified person   s opinion 
regarding the
         adequacy of the data and verification procedures for the purposes of 
the technical report
         summary as required the by Item 601(b)(96)(iii)(B)(9)(iii) of 
Regulation S-K.
Exhibit 96.1 Arcos - A
Cutoff, page 85, page EA-85

15.      Please modify your filing and disclose the cutoff grade for your 
reserve estimates along
         with all the parameters used to prepare this calculation. See Item
         601(b)(96)(iii)(B)(12)(iii) of Regulation S-K.
Exhibit 96.1 Arcos - A
Market Study, page 114, page EA-114

16.      Please modify your filing to describe your individual salable product 
specifications and
         present the 5-year historic prices with your forecast pricing as used 
in your cash flow
         analysis. See Item 601(b)(96)(iii)(B)(16)(i) of Regulation S-K.
Exhibit 96.1 Arcos - A
Mine Closure Plan, page 116, page EA-116

17.      We reviewed the Environmental Studies, Permitting, And Plans, 
Negotiations, Or
         Agreements with Local Individuals or Groups section of your technical 
report summary.
         Please modify your filing and include the QP   s opinion as to the 
adequacy of current plans
         for environmental compliance, permitting, and addressing issues with 
local individuals or
         groups required by Item 601(b)(96)(iii)(B)(17)(vi) of Regulation S-K.
Exhibit 96.1 Arcos - A
Capital Costs, page 117, page EA-117

18.      We note your capital for Mobile Equipment is different from the amount 
used in your
 Marcelo Cunha Ribeiro
FirstName  LastNameMarcelo  Cunha Ribeiro
National Steel Company
Comapany7,
December   NameNational
             2023        Steel Company
December
Page 4    7, 2023 Page 4
FirstName LastName
         economic analysis. Please review and modify your filing and define the 
accuracy of your
         capital and operating costs estimates as required by Item 
601(b)(96)(iii)(B)(18)(i) of
         Regulation S-K.
Exhibit 96.2 Casa de Pedra
Property location, page 32, page EB-32

19.      Please review and correct the property coordinates for the Casa de 
Pedra mining complex.
Exhibit 96.2 Casa de Pedra
Mineral Resources as of 31 December 2021, page 87, page EB-87

20.      Please provide all the parameters for the pit optimization that 
demonstrated reasonable
         prospects of economic extraction and provide an example. See Item
         601(b)(96)(iii)(B)(11)(iii) of Regulation S-K.
Exhibit 96.2 Casa de Pedra
Metallurgical Recovery, pasge 96, page EB-96

21.      Please provide the overall metallurgical recoveries for your salable 
products.
Exhibit 96.2 Casa de Pedra - A
Cost assumptions, page 97, page EB-97

22.      Please explain the significant variance between your cost assumptions 
and the estimated
         operating costs found in Section 18 and your economic analysis.
Exhibit 96.2 Casa de Pedra - A
Cutoff grades, page 98, page EB-98

23.      Please provide all the parameters for your cutoff grade and provide an 
example. Please
         clarify whether this is a breakeven or marginal cutoff grade. See Item
         601(b)(96)(iii)(B)(12)(iii) of Regulation S-K.
Exhibit 96.2 Casa de Pedra - A
Mineral reserve as of 31 December 2021, page 101, page EB-101

24.      Please modify your filing and disclose the cutoff grade and 
metallurgical recovery for
         your reserve estimates along with all the parameters used to prepare 
this calculation. See
         Item 601(b)(96)(iii)(B)(12)(iii) of Regulation S-K.
Exhibit 96.2 Casa de Pedra - A
Mine Schedule, page 105, page EB-105

25.      Please provide annual numerical values for your life of mine 
production schedule. This
         would include annual processed ore with associated grades for the life 
of mine. See Item
         601(b)(96)(iii)(B)(13) of Regulation S-K.
 Marcelo Cunha Ribeiro
National Steel Company
December 7, 2023
Page 5
Exhibit 96.2 Casa de Pedra - A
Economic Analysis, page 155, page EB-155

26.      We note you provided a cash flow summary for your mining project   s 
reserves. Please
         provide an annual cash flow based on your annual production schedule 
for the life of your
         project   s reserves and provide appropriate line items, such as 
revenues, operating costs,
         capital expenditures, royalties, taxes, and other line items necessary 
to define your after-
         tax cash flow. See Item 601(b)(96)(iii)(B)(19)(ii) of Regulation S-K.
       In closing, we remind you that the company and its management are 
responsible for the
accuracy and adequacy of their disclosures, notwithstanding any review, 
comments, action or
absence of action by the staff.

      If you have any questions regarding mining comments, please contact Ken 
Schuler, Mine
Engineer at (202) 551-3718 or Craig Arakawa at (202) 551-3650. Please contact 
Melissa
Gilmore at 202-551-3777 or Kevin Woody at 202-551-3629 with any other 
questions.



FirstName LastNameMarcelo Cunha Ribeiro                        Sincerely,
Comapany NameNational Steel Company
                                                               Division of 
Corporation Finance
December 7, 2023 Page 5                                        Office of 
Manufacturing
FirstName LastName