STLD supply chain intelligence for Steel Dynamics, Inc.: verified suppliers, customers, debt relationships, acquisitions, and ownership data.
Data compiled by Redley Lamar · ChainSifter Intelligence
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| METALS-RECYCLING-OPERATIONS | METALS-RECYCLING-OPERATIONS | 92% | Our steel mills utilize a large portion of the ferrous scrap sold by our metals recycling operations as raw material in our steelmaking operations |
| OMNISOURCE | OMNISOURCE | 92% | Metals recycling operations include the company's OmniSource ferrous and nonferrous processing, transportation, marketing, brokerage, and scrap management services primarily throughout the United Sta… |
| OMNISOURCE-MEXICO | OMNISOURCE-MEXICO | 92% | In August 2020, we completed the acquisition of Zimmer, S.A. de C.V. (dba OmniSource Mexico), a Mexican metals recycling company, which is an important part of our raw material procurement strategy f… |
| ZIMMER-S-A-DE-C-V | ZIMMER-S-A-DE-C-V | 92% | During 2022, we completed the acquisition of ROCA ACERO, S.A. de C.V. (ROCA), following the August 2020 acquisition of Zimmer, S.A. de C.V., both Mexican metals recycling companies, combined to do bu… |
| IRON-DYNAMICS | IRON-DYNAMICS | 90% | Iron Dynamics, a liquid pig iron (scrap substitute) production facility that supplies solely the Butler Flat Roll Division |
| UNITED-STEEL-SUPPLY | UNITED-STEEL-SUPPLY | 90% | Our steel mills utilize a large portion (approximately 66% in 2022 and 2021) of the ferrous scrap sold by our metals recycling operations as raw material in our steelmaking operations, and the remain… |
| UNITED-STEEL-SUPPLY-USS | UNITED-STEEL-SUPPLY-USS | 90% | Steel operations include the company's electric arc furnace (EAF) steel mills, including United Steel Supply (USS) |
| USS | USS | 90% | On April 1, 2023, a noncontrolling member of USS exercised its option to require SDI to purchase its 2.5 % equity interest, increasing SDI's ownership to 90%. |
| VULCAN-THREADED-PRODUCTS-INC | VULCAN-THREADED-PRODUCTS-INC | 90% | United Steel Supply (USS) – 90 % equity interest as of April 1, 2023, Vulcan Threaded Products, Inc., and warehouse operations in Mexico. |
| BUTLER-FLAT-ROLL-DIVISION | BUTLER-FLAT-ROLL-DIVISION | 85% | Iron Dynamics, a liquid pig iron (scrap substitute) production facility that supplies solely the Butler Flat Roll Division. |
| OMNI-MEXICO | OMNI-MEXICO | 85% | including Omni Mexico (formerly Zimmer, S.A de C.V), acquired August 3, 2020 |
| STEEL-FABRICATION-OPERATIONS | STEEL-FABRICATION-OPERATIONS | 85% | The purchase of various steel products is the largest single cost of production for our steel fabrication operations, historically representing approximately two-thirds of the total cost of manufacturing. |
| ALUMINUM-OPERATIONS | ALUMINUM-OPERATIONS | 80% | Our aluminum operations provide flat rolled products with high recycled content to the countercyclical, sustainable beverage can industry, as well as the automotive and industrial sectors. |
| AYMIUM | AYMIUM | 80% | The company also purchased a minority equity interest in Aymium, a producer of renewable biocarbon products. |
| COLUMBUS-FLAT-ROLL-DIVISION | COLUMBUS-FLAT-ROLL-DIVISION | 80% | Steel operations include the company's electric arc furnace (EAF) steel mills, including Columbus Flat Roll Division |
| HEARTLAND-FLAT-ROLL-DIVISION | HEARTLAND-FLAT-ROLL-DIVISION | 80% | Steel operations include the company's electric arc furnace (EAF) steel mills, including Heartland Flat Roll Division |
| NEW-PROCESS-STEEL-L-P | NEW-PROCESS-STEEL-L-P | 80% | The company purchased a 45 % minority equity interest in New Process Steel, L.P. (NPS) on January 31, 2022. |
| ROANOKE-BAR-DIVISION | ROANOKE-BAR-DIVISION | 80% | Steel operations include the company's electric arc furnace (EAF) steel mills, including Roanoke Bar Division |
| ROCA-ACERO-S-A-DE-C-V | ROCA-ACERO-S-A-DE-C-V | 80% | In October 2022, we completed our acquisition of ROCA ACERO, S.A. de C.V. (ROCA), whose post-acquisition operations are included in 2022 results. |
| SOUTHWEST-SINTON-FLAT-ROLL-DIVISION | SOUTHWEST-SINTON-FLAT-ROLL-DIVISION | 80% | Steel operations include the company's electric arc furnace (EAF) steel mills, including Southwest-Sinton Flat Roll Division |
| STEEL-MILLS | STEEL-MILLS | 80% | Our steel mills utilize a large portion (approximately 66% in 2021 and 69% in 2020) of the ferrous scrap sold by our metals recycling operations as raw material in our steelmaking operations |
| STEEL-OF-WEST-VIRGINIA | STEEL-OF-WEST-VIRGINIA | 80% | Steel operations include the company's electric arc furnace (EAF) steel mills, including Steel of West Virginia |
| STRUCTURAL-AND-RAIL-DIVISION | STRUCTURAL-AND-RAIL-DIVISION | 80% | Steel operations include the company's electric arc furnace (EAF) steel mills, including Structural and Rail Division |
| NWPX | NWPX Infrastructure, Inc. | 72% | Reciprocal relationship from NWPX graph: r Transmission Systems. The main raw component in our steel pipe manufacturing process is steel. We have historically purchased hot rolled steel coil and stee… |
| SID | Companhia Siderúrgica Nacional | 72% | Reciprocal relationship from SID graph: Reciprocal relationship from STLD graph: Reciprocal relationship from SID graph: ning activities at Ariquemes (ERSA mine) are based on concessions under simila… |
| WS | Worthington Steel, Inc. | 72% | Reciprocal relationship from WS graph: fixed pricing and some of which are indexed (monthly or quarterly). During fiscal 2025, we purchased steel from the following major suppliers, in alphabetical o… |
| ZIMMER | ZIMMER | 70% | In August 2020, we completed the acquisition of Zimmer, whose post-acquisition operations are included in 2020 results |
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| STEEL-FABRICATION-OPERATIONS | STEEL-FABRICATION-OPERATIONS | 92% | Revenues from these plants are generated from the fabrication of steel joists, joist girders, and steel deck systems used within the non-residential construction industry |
| FOUNDRIES | FOUNDRIES | 90% | the remainder is sold to other consumers, such as other steel manufacturers and foundries |
| OTHER-STEEL-MANUFACTURERS | OTHER-STEEL-MANUFACTURERS | 90% | the remainder is sold to other consumers, such as other steel manufacturers and foundries |
| UNITED-STEEL-SUPPLY | UNITED-STEEL-SUPPLY | 90% | Through United Steel Supply ("USS") and New Process Steel, L.P. ("NPS") (acquired December 1, 2025), we also have distribution and processing of metallic coated and pre-painted products. |
| WS | Worthington Steel, Inc. | 90% | Reciprocal relationship from WS graph: fixed pricing and some of which are indexed (monthly or quarterly). During fiscal 2025, we purchased steel from the following major suppliers, in alphabetical o… |
| BROKERS | BROKERS | 85% | Our primary steel fabrication operations customers are non-residential steel fabricators, such as metal building companies, general construction contractors, developers, brokers and governmental entities. |
| DEVELOPERS | DEVELOPERS | 85% | Our primary steel fabrication operations customers are non-residential steel fabricators, such as metal building companies, general construction contractors, developers, brokers and governmental entities. |
| GENERAL-CONSTRUCTION-CONTRACTORS | GENERAL-CONSTRUCTION-CONTRACTORS | 85% | Our primary steel fabrication operations customers are non-residential steel fabricators, such as metal building companies, general construction contractors, developers, brokers and governmental entities. |
| GOVERNMENTAL-ENTITIES | GOVERNMENTAL-ENTITIES | 85% | Our primary steel fabrication operations customers are non-residential steel fabricators, such as metal building companies, general construction contractors, developers, brokers and governmental entities. |
| METAL-BUILDING-COMPANIES | METAL-BUILDING-COMPANIES | 85% | Our primary steel fabrication operations customers are non-residential steel fabricators, such as metal building companies, general construction contractors, developers, brokers and governmental entities. |
| OTHER-STEEL-MANUFACTURERS-AND-FOUNDRIES | OTHER-STEEL-MANUFACTURERS-AND-FOUNDRIES | 85% | the remainder is sold to other consumers, such as other steel manufacturers and foundries |
| ALUMINUM-OPERATIONS-SEGMENT | ALUMINUM-OPERATIONS-SEGMENT | 80% | We sell various grades of nonferrous metals including copper, brass, aluminum, and stainless steel, to smelters, refineries, alloy manufacturers, specialty mills and other consumers, including our al… |
| BUTLER-FLAT-ROLL-DIVISION | BUTLER-FLAT-ROLL-DIVISION | 80% | Steel operations include our EAF steel mills, including Butler Flat Roll Division, Columbus Flat Roll Division, Southwest-Sinton Flat Roll Division, Structural and Rail Division, Engineered Bar Produ… |
| COLUMBUS-FLAT-ROLL-DIVISION | COLUMBUS-FLAT-ROLL-DIVISION | 80% | Steel operations include our EAF steel mills, including Butler Flat Roll Division, Columbus Flat Roll Division, Southwest-Sinton Flat Roll Division, Structural and Rail Division, Engineered Bar Produ… |
| HEARTLAND-FLAT-ROLL-DIVISION | HEARTLAND-FLAT-ROLL-DIVISION | 80% | Steel operations include our EAF steel mills, including Butler Flat Roll Division, Columbus Flat Roll Division, Southwest-Sinton Flat Roll Division, Structural and Rail Division, Engineered Bar Produ… |
| LARGE-RETAIL-CHAINS | LARGE-RETAIL-CHAINS | 80% | We have a national operating footprint that allows us to serve the entire domestic construction market, as well as national accounts, such as large retail chains. |
| OMNISOURCE | OMNISOURCE | 80% | Our steel mills utilize a large portion of the ferrous scrap sold by our metals recycling operations as raw material in our steelmaking operations, and the remainder is sold to other consumers, such … |
| ROANOKE-BAR-DIVISION | ROANOKE-BAR-DIVISION | 80% | Steel operations include our EAF steel mills, including Butler Flat Roll Division, Columbus Flat Roll Division, Southwest-Sinton Flat Roll Division, Structural and Rail Division, Engineered Bar Produ… |
| SOUTHWEST-SINTON-FLAT-ROLL-DIVISION | SOUTHWEST-SINTON-FLAT-ROLL-DIVISION | 80% | Steel operations include our EAF steel mills, including Butler Flat Roll Division, Columbus Flat Roll Division, Southwest-Sinton Flat Roll Division, Structural and Rail Division, Engineered Bar Produ… |
| STRUCTURAL-AND-RAIL-DIVISION | STRUCTURAL-AND-RAIL-DIVISION | 80% | Steel operations include our EAF steel mills, including Butler Flat Roll Division, Columbus Flat Roll Division, Southwest-Sinton Flat Roll Division, Structural and Rail Division, Engineered Bar Produ… |
| SID | Companhia Siderúrgica Nacional | 72% | Reciprocal relationship from SID graph: ning activities at Ariquemes (ERSA mine) are based on concessions under similar conditions. The Manifesto de Mina for Casa de Pedra mine and the Engenho mining… |
| STEEL-DYNAMICS-INC | STEEL-DYNAMICS-INC | 70% | Our steel operations sell directly to end-users, steel fabricators, and service centers. |
| STEEL-FABRICATION-OPERATIONS-SEGMENT | STEEL-FABRICATION-OPERATIONS-SEGMENT | 70% | Revenues from these plants are generated from the fabrication of girders, steel joists and steel deck used within the non-residential construction industry. |
| UNITED-STEEL-SUPPLY-USS | UNITED-STEEL-SUPPLY-USS | 70% | Our steel operations sell directly to end-users, steel processors, steel fabricators, and service centers. |
| MESABI-NUGGET | MESABI-NUGGET | 60% | Redeemable noncontrolling interests related to Mesabi Nugget (owned 84% by SDI) are $111.2 million at December 31, 2020, and 2019 |
| Instrument | Description | Confidence | Evidence |
|---|---|---|---|
| STLD-DEBT | Debt stack $4.2B | 90% | Market cache reports total debt of $4.2B. |
| STLD-DEBT-7352 | Xbrl Convertible | 90% | xbrl convertible detail from xbrl 2014-12-31. |
| Holder | Name | Confidence | Evidence |
|---|---|---|---|
| STLD-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC | VANGUARD CAPITAL MANAGEMENT LLC | 90% | 13F overlay lists VANGUARD CAPITAL MANAGEMENT LLC as top holder; 940 tracked holders. |
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