Equity interests (%)
Companies	12/31/2020	Jurisdiction of incorporation	Core business
Direct interest in subsidiaries: full consolidation
CSN Islands VII Corp.	100.00	Cayman Islands	Financial transactions
CSN Inova Ventures(1)	100.00	Cayman Islands	Financial transactions
CSN Islands XII Corp.	100.00	Cayman Islands	Financial transactions
CSN Steel S.L.U.	100.00	Spain	Equity interests and financial transactions
TdBB S.A.(*)	100.00	Panamá	Equity interests
Sepetiba Tecon S.A.	99.99	Brazil	Port services
Minérios Nacional S.A.	99.99	Brazil	Mining and equity interests
Companhia Florestal do Brasil	99.99	Brazil	Reforestation
Estanho de Rondônia S.A.	99.99	Brazil	Tin mining
Companhia Metalúrgica Prada	99.99	Brazil	Manufacture of containers and distribution of steel products
CSN Mineração S.A.	87.52	Brazil	Mining
CSN Energia S.A.	99.99	Brazil	Sale of electric power
FTL - Ferrovia Transnordestina Logística S.A.	92.38	Brazil	Railroad logistics
Nordeste Logística S.A.	99.99	Brazil	Port services
CSN Inova Ltd.	100.00	Israel	Advisory and implementation of new development projects
CBSI - Companhia Brasileira de Serviços de Infraestrutura	99.99	Brazil	Equity interests and product sales and iron ore
CSN Cimentos S.A.(3)	90.00	Brazil	Manufacturing and sale of cement
Indirect interest in subsidiaries: full consolidation
Lusosider Projectos Siderúrgicos S.A.	100.00	Portugal	Equity interests and product sales
Lusosider Aços Planos, S.A.	99.99	Portugal	Steel and equity interests
CSN Resources S.A.	100.00	Luxembourg	Financial transactions and equity interests
Companhia Brasileira de Latas	99.99	Brazil	Sale of cans and containers in general and equity interests
Companhia de Embalagens Metálicas MMSA	99.67	Brazil	Production and sale of cans and related activities
Companhia de Embalagens Metálicas - MTM	99.67	Brazil	Production and sale of cans and related activities
CSN Steel Holdings 1, S.L.U.	100.00	Spain	Financial transactions, product sales and equity interests
CSN Productos Siderúrgicos S.L.	100.00	Spain	Financial transactions, product sales and equity interests
Stalhwerk Thüringen GmbH	100.00	Germany	Production and sale of long steel and related activities
CSN Steel Sections Polska Sp.Z.o.o	100.00	Poland	Financial transactions, product sales and equity interests
CSN Mining Holding, S.L	87.52	Spain	Financial transactions, product sales and equity interests
CSN Mining GmbH	87.52	Austria	Financial transactions, product sales and equity interests
CSN Mining Asia Limited	87.52	Hong Kong	Commercial representation
Lusosider Ibérica S.A.	100.00	Portugal	Steel, commercial and industrial activities and equity interests
CSN Mining Portugal, Unipessoal Lda.	87.52	Portugal	Commercial and representation of products
Companhia Siderúrgica Nacional, LLC	100.00	United States	Import and distribution/resale of products
CSN Cimentos S.A.(2)	100.00	Brazil	Manufacturing and sale of cement
(*) Dormant companies. 1. Formerly CSN Islands XI Corp. 2. Acquired on October 2, 2020.