Company: TNRSF
Filing Date: 2025-04-07
Form Type: 6-K
Source: 0001171843-25-002038
Chunk: 7

Company: TENARIS SA
Filing Date: 2025-04-07
Form: 6-K
Chunk 7
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aris.com and fgbettiol@tenaris.com.

:

26, Boulevard Royal, 4 Floor,

L-2449 Luxembourg

Attn: Ana María Grandes Muñoz
and/or Lavinia Brege

:

c/o Dalmine S.p.A.

Piazza Caduti 6 luglio 1944 n. 1 24044

Dalmine (BG)

Attn: Marco Maria Domenico Tajana and/or Francesco
Giuseppe Bettiol

:

c/o Tubos de Acero de México, S.A.

Campos Elíseos 400-Piso 17

Col. Chapultepec Polanco

11560 Ciudad de México

Attn: Ulises Martínez Martínez
and/or Carol B. Clemente Bejarano

In the case of shares held through fungible
securities accounts in Mexico, the Certificate of Shareholding must be issued by S.D. Indeval Institución para el Depósito
de Valores S.A. de C.V. (Paseo de la Reforma #255, 3er. piso Col. Cuauhtémoc, Mexico City) in accordance with applicable regulation.

The AGMS/EGMS Proxy Form will only be valid if it includes the shareholder’s
name, registered office/address and signature and, in the event of shares owned by a corporation or any other legal entity, the name,
registered office/address and signature of the individual (s) representing such corporation or other legal entity. Incomplete or erroneous AGMS/EGMS Proxy Forms or AGMS/EGMS Proxy Forms THAT are not timely delivered or do not satisfy the required formalities will be discarded and the underlying shares WILL not be voted at the Meetings.

A shareholder’s proxy holder shall enjoy the same rights to speak
and ask questions at the Meetings as those afforded to the respective shareholder. Pursuant to the Shareholders’ Rights Law, irrespective of the number of shares held, a shareholder may appoint only one proxy holder to represent such shareholder at the Meetings,
except that:

| (i) | if a shareholder holds shares of the Company through more than one securities account, such shareholder 
 may appoint one proxy holder for each securities account; and                                           |

| (ii) | a shareholder acting professionally for the account of a natural person or legal entity may appoint such 
 natural person or legal entity, or any other third party designated by them, as proxy holder.            |

A person acting as shareholder’s proxy holder may represent one