Tenaris S.A.

Major Shareholding Notification • Mar 30, 2023

Informazione Regolamentata n. 0602-4-2023		Data/Ora Ricezione 30 Marzo 2023 09:10:52	Euronext Milan
Societa'	:	TENARIS
Identificativo Informazione Regolamentata	:	174372
Nome utilizzatore	:	TENARISN02 - Sardagna
Tipologia	:	REGEM
Data/Ora Ricezione	:	30 Marzo 2023 09:10:52
Data/Ora Inizio Diffusione presunta	:	30 Marzo 2023 09:10:53
Oggetto	:	Tenaris to increase its participation in Usiminas Control Group
Testo del comunicato

Vedi allegato.

Giovanni Sardagna Tenaris 1-888-300-5432 www.tenaris.com

Tenaris to Increase its Participation in Usiminas Control Group

Luxembourg, March 30, 2023 – Tenaris S.A. (NYSE and Mexico: TS and EXM Italy: TEN) announced today that its Brazilian subsidiary Confab Industrial S.A., together with its affiliates Ternium Investments and Ternium Argentina, all of which compose the T/T group within Usiminas control group, have entered into a share purchase agreement to acquire from Nippon Steel Corporation, Mitsubishi and MetalOne (the "NSC group"), pro rata to their current participations in the T/T group, 68.7 million ordinary shares of Usinas Siderúrgicas de Minas Gerais S.A. – USIMINAS ("Usiminas") at a price of BRL10 per ordinary share. Pursuant to the transaction, Tenaris would pay BRL 110 million (approximately USD21 million) in cash for 11.0 million ordinary shares, increasing its participation in the Usiminas control group to 9.8%. The transaction is subject to approval by Brazil's antitrust authorities and will be financed with cash on hand.

The Usiminas control group holds the majority of Usiminas' voting rights and manages the company based on mutual trust. Upon the closing of this transaction, the T/T group will hold an aggregate participation of 61.3% in the control group, with the NSC group and Previdência Usiminas (Usiminas employees' pension fund) holding 31.7% and 7.1%, respectively.

The Usiminas control group members have also agreed a new governance structure in the best interest of Usiminas. The T/T group will nominate a majority of the Usiminas board of directors, the CEO and four other members of Usiminas board of officers, and ordinary decisions may be approved with a 55% majority of the control group shares.

At any time after the second anniversary of the closing of the transaction, the T/T group will have the right to buy the NSC group's remaining interest in the Usiminas control group (153.1 million ordinary shares) at the higher of BRL10 per share and the 40-trading day average price per share immediately prior to the date of exercising the option. In addition, the NSC group will have the right, at any time after the closing of the transaction, to withdraw its remaining shares from the control group and sell them in the open market after giving the T/T group the opportunity to buy them at the 40-trading day average price per share immediately prior to the NSC group's notice of withdrawal, as well as the right, at any time after the second anniversary of the closing, to sell such shares to the T/T group at BRL10 per share.

Some of the statements contained in this press release are "forward-looking statements." Forwardlooking statements are based on management's current views and assumptions and involve known and unknown risks that could cause actual results, performance or events to differ materially from those expressed or implied by those statements.

Tenaris is a leading global supplier of steel tubes and related services for the world's energy industry and certain other industrial applications.