# Filing Detail

Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)]:
SEC Accession No. 0001554855-26-000490
Filing Date
2026-03-31
Accepted
2026-03-31 16:27:57
Documents
250
Period of Report
2025-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 20-F | ts-20251231.htm iXBRL | 20-F | 10216964
7 | EXHIBIT 1.1 | ex11_1.htm | EX-1.1 | 15455
8 | EXHIBIT 2.2 | ex22_2.htm | EX-2.2 | 39573
9 | EXHIBIT 8.1 | ex81_3.htm | EX-8.1 | 60497
10 | EXHIBIT 11.1 | ex111_4.htm | EX-11.1 | 552423
11 | EXHIBIT 12.1 | ex121_5.htm | EX-12.1 | 11370
12 | EXHIBIT 12.2 | ex122_6.htm | EX-12.2 | 11437
13 | EXHIBIT 13.1 | ex131_7.htm | EX-13.1 | 11044
14 | EXHIBIT 13.2 | ex132_8.htm | EX-13.2 | 11229
15 | EXHIBIT 15.1 | ex151_9.htm | EX-15.1 | 31359
16 | EXHIBIT 15.2 | ex152_10.htm | EX-15.2 | 44898
17 | GRAPHIC | c017b0294d47525e6b80.jpg | GRAPHIC | 44249
18 | GRAPHIC | c0ce01d68b2835523cae.jpg | GRAPHIC | 68307
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69 | GRAPHIC | cfbc432ed4c3eb4cd13a.jpg | GRAPHIC | 437221
70 | GRAPHIC | c4ce34143d869e622c3c.jpg | GRAPHIC | 8788
| Complete submission text file | 0001554855-26-000490.txt |  | 57658932

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
2 | DEFINITION | ts-20251231_def.xml | EX-101.DEF | 1415271
3 | PRESENTATION | ts-20251231_pre.xml | EX-101.PRE | 1821272
4 | CALCULATION | ts-20251231_cal.xml | EX-101.CAL | 260482
5 | LABEL | ts-20251231_lab.xml | EX-101.LAB | 2805300
6 | SCHEMA | ts-20251231.xsd | EX-101.SCH | 298486
254 | EXTRACTED XBRL INSTANCE DOCUMENT | ts-20251231_htm.xml | XML | 9524834

Mailing Address 26, BOULEVARD ROYAL, 4TH FLOOR LUXEMBOURG N4 L-2449
Business Address 26, BOULEVARD ROYAL, 4TH FLOOR LUXEMBOURG N4 L-2449 1-888-300-5432
TENARIS SA (Filer) CIK: 0001190723 (see all company filings)

EIN.: 000000000
Type: 20-F | Act: 34 | File No.: 001-31518 | Film No.: 26822374
SIC: 3312 Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
(CF Office: 04 Manufacturing)