Company: TNRSF
Filing Date: 2025-08-01
Form Type: 6-K
Source: 0001171843-25-004943
Chunk: 32

Company: TENARIS SA
Filing Date: 2025-08-01
Form: 6-K
Chunk 32
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. Potential outcomes of an adverse CGU decision include a declaration of ineligibility for contracting with the Brazilian
state for up to six years. Confab received notice in February 2025 and believes that the CGU’s allegations do not address either
the defense arguments or the evidence available to the plaintiffs in Brazil and presented in other jurisdictions. On April 7, 2025, Confab
filed its defense and contested the allegations. At this stage, the Company, based on the advice of legal counsel, cannot predict the
outcome of these administrative proceedings.

§Administrative proceeding concerning Brazilian tax credits

Confab is a party to an administrative proceeding concerning the recognition
and transfer of tax credits for an amount allegedly exceeding the amount that Confab would have been entitled to recognize and / or transfer.
The proceeding resulted in the imposition of a fine against Confab representing approximately 75% of the allegedly undue credits, which
was appealed by Confab. On January 21, 2019, Confab was notified of an administrative decision denying Confab’s appeal, thereby
upholding the tax determination and the fine against Confab. On January 28, 2019, Confab challenged such decision. Special appeals were
filed by Confab in July 2023 and by the Brazilian General Tax Attorney in September 2023. The parties are currently awaiting a resolution.
In case of an unfavorable resolution, Confab may appeal before the courts. The estimated amount of this claim is BRL64.4
million (approximately $11.8 million). At this stage, the Company cannot predict the outcome of this
claim.

§U.S. patent infringement litigation

Tenaris Coiled Tubes, LLC (“TCT”), a U.S. subsidiary of the
Company, was sued in 2017 by its competitor Global Tubing, alleging defamatory conduct by TCT and seeking a declaration that certain Global
Tubing products do not infringe patents held by TCT. TCT counterclaimed that certain Global Tubing products did infringe patents held
by TCT, and Global Tubing has since sought to invalidate such patents. On December 13, 2019, Global Tubing filed an amended complaint
(including the Company as defendant), alleging, among other things, that TCT and the Company had misled the patent office. On March 20,
2023, the judge granted summary judgment in favor of Global Tubing, concluding that the patents at issue are unenforceable due to