Company: TNRSF
Filing Date: 2025-09-19
Form Type: SCHEDULE 13D/A
Source: 0001213900-25-089522
Chunk: 0

Company: TENARIS SA
Filing Date: 2025-09-19
Form: SCHEDULE 13D/A
Chunk 0
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INGS S.A R.L.                       
   Name/Title:  /s/ Fernando J. Mantilla / Attorney-in-fact   
   Date:        09/19/2025                                    |

| Comments accompanying signature:Pursuant to Rule 13d-1(k)(1), the undersigned joins in the filing of this Amendment No. 12 on his own behalf and on behalf of SAN FAUSTIN S.A. and TECHINT HOLDINGS S.A R.L.                     
 Pursuant to Rule 13d-1(k)(1), the undersigned joins in the filing of this Amendment No. 12 on his own behalf and on behalf of ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN and TECHINT HOLDINGS S.A R.L. 
 Pursuant to Rule 13d-1(k)(1), the undersigned joins in the filing of this Amendment No. 12 on his own behalf and on behalf of ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN and SAN FAUSTIN S.A.          |