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Note 28 - Related Party Transactions | 12 Months Ended
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Dec. 31, 2018
Statement Line Items [Line Items] |
Disclosure of related party [text block] |
| 28 | Related party transactions
As of December 31, 2018:
| § | San Faustin S.A., a Luxembourg société anonyme (“San Faustin”), owned 713,605,187 shares in the Company, representing 60.45% of the Company’s capital and voting rights.
| § | San Faustin owned all of its shares in the Company through its wholly-owned subsidiary Techint Holdings S.à.r.l., a Luxembourg société à responsabilité limitée (“Techint”), who is the holder of record of the above-mentioned Tenaris shares.
| § | Rocca & Partners Stichting Administratiekantoor Aandelen San Faustin, a Dutch private foundation (Stichting) (“RP STAK”) held voting shares in San Faustin sufficient in number to control San Faustin.
| § | No person or group of persons controls RP STAK.
Based on the information most recently available to the Company, Tenaris’s directors and senior management as a group owned 0.08% of the Company’s outstanding shares. Transactions and balances disclosed as with “non-consolidated parties” are those with companies over which Tenaris exerts significant influence or joint control in accordance with IFRS, but does not have control. All other transactions and balances with related parties which are not non-consolidated parties and which are not consolidated are disclosed as “Other”. The following transactions were carried out with related parties:
(all amounts in thousands of U.S. dollars) |  | Year ended December 31,
|  | 2018 |  | 2017 |  | 2016
(i) Transactions |  |  |  |  |  |  |  |  |
(a) Sales of goods and services |  |  |  |  |  |
Sales of goods to non-consolidated parties |  |  | 23,709 |  |  |  | 32,362 |  |  |  | 21,174 |
Sales of goods to other related parties |  |  | 131,548 |  |  |  | 94,624 |  |  |  | 32,613 |
Sales of services to non-consolidated parties |  |  | 7,641 |  |  |  | 11,637 |  |  |  | 9,542 |
Sales of services to other related parties |  |  | 5,647 |  |  |  | 3,751 |  |  |  | 2,948 |
|  |  | 168,545 |  |  |  | 142,374 |  |  |  | 66,277 |
(b) Purchases of goods and services |  |  |  |  |  |  |  |  |  |  |  |
Purchases of goods to non-consolidated parties |  |  | 245,186 |  |  |  | 234,361 |  |  |  | 67,048 |
Purchases of goods to other related parties |  |  | 106,624 |  |  |  | 17,711 |  |  |  | 20,150 |
Purchases of services to non-consolidated parties |  |  | 9,556 |  |  |  | 12,077 |  |  |  | 11,528 |
Purchases of services to other related parties |  |  | 46,179 |  |  |  | 50,794 |  |  |  | 53,530 |
|  |  | 407,545 |  |  |  | 314,943 |  |  |  | 152,256 |
(all amounts in thousands of U.S. dollars) |  | At December 31,
|  | 2018 |  | 2017
(ii) Period-end balances |  |  |  |
(a) Arising from sales / purchases of goods / services |  |  |  |
Receivables from non-consolidated parties |  |  | 122,135 |  |  |  | 117,853 |
Receivables from other related parties |  |  | 24,419 |  |  |  | 50,815 |
Payables to non-consolidated parties |  |  | (33,197 | ) |  |  | (49,354 | )
Payables to other related parties |  |  | (17,595 | ) |  |  | (14,475 | )
|  |  | 95,762 |  |  |  | 104,839 |
Directors’ and senior management compensation During the years ended December 31, 2018, 2017 and 2016, the cash compensation of Directors and Senior managers amounted to $33.7 million, $45.8 million and $38.6 million respectively. These amounts include cash benefits paid to certain senior managers in connection with the pre-existing retirement plans. In addition, Directors and Senior managers received 558, 484 and 500 thousand units for a total amount of $5.6 million, $4.7 million and $4.8 million respectively in connection with the Employee retention and long term incentive program mentioned in Note O Employee benefits – Other long term benefits.

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