Gerdau

Gerdau S.A. is a Brazilian steel producer whose roots date to a nail-making business established by German immigrant João Gerdau in Rio Grande do Sul in 1901. From that initial manufacturing operation, the company developed into a multinational steel group serving construction, infrastructure, industrial manufacturing, automotive, agricultural, energy, and other end markets. Its principal business is long steel, including reinforcing bar, structural products, wire rod, merchant bar, and related construction steel. It also produces special steel for demanding industrial and automotive applications, as well as selected flat-steel and downstream products through its operating businesses. A defining feature of Gerdau's development was vertical integration into steelmaking. The original nail business encountered difficulty obtaining raw material after the Second World War, prompting the family to acquire a steel mill in 1948. The company later expanded through electric-arc-furnace mini-mills, integrated facilities, direct-reduced-iron operations, scrap collection, and downstream fabrication. This operating model gave Gerdau access to recycled ferrous scrap while allowing it to serve regional markets with relatively flexible production assets. The company states that recycled scrap accounts for a substantial majority of its steel production; reference material for 2023 places the share at approximately 71 percent. The business expanded beyond Brazil during the late twentieth century, first entering Canada through Courtice Steel in 1989 and then establishing a major United States presence through the acquisition of AmeriSteel in 1999. Further North American purchases, including North Star Steel, Chaparral Steel, MacSteel, and Tamco, broadened its product and geographic footprint. Gerdau subsequently reshaped the portfolio through divestments of selected North American, Indian, Colombian, and Dominican Republic assets, while continuing to invest in scrap supply, special steel, technology, and higher-value industrial applications. Gerdau is one of the largest long-steel producers in the Americas. Reference material identifies approximately 13 million tons of production in 2023 and places Brazil and North America at roughly 39 percent each of sales. The company operates a mixture of mini-mills, integrated mills, and direct-reduced-iron plants. Its commercial proposition combines regional manufacturing, recycled-material expertise, steel distribution, and products engineered for construction and industrial customers. Gerdau has also pursued innovation outside conventional steel, including Gerdau Graphene, a venture formed with the University of Manchester's Graphene Engineering and Innovation Centre to develop graphene-enhanced additives and materials. The company remains publicly listed, although control is concentrated among the Gerdau Johannpeter family. Its history includes substantial acquisition-led growth, portfolio rationalization, and a continuing emphasis on lower-carbon electric-arc-furnace production and circular use of scrap. It has also faced significant legal controversy: Brazilian authorities investigated alleged tax fraud, bribery, money laundering, and influence peddling in the Operation Zealots matter, and a shareholder settlement was reported in 2017. Gerdau continues to operate as an active international steel group headquartered in São Paulo.

Gerdau traces its origins to Pontas de Paris, a nail manufacturer founded by João Gerdau in Brazil in 1901. João had arrived in Rio Grande do Sul from Germany in 1869. Leadership later passed to his son Hugo Gerdau and then to Hugo's son-in-law Curt Johannpeter. The business's move into steelmaking was driven by supply security: after the Second World War, the nail operation struggled to obtain suitable raw material, so the company acquired a steel mill in 1948. The mill expanded over the following two decades. When capacity became constrained, Gerdau acquired a São Paulo mini-mill in 1967. The company adopted the name Metalúrgica Gerdau S.A. in 1969 and became publicly listed in Brazil in 1970. During the 1980s it purchased additional mills, including assets associated with the privatization and restructuring of Brazil's state steel sector. By the end of that decade, it held a major position in Brazilian long steel, although the scale of its acquisitions attracted regulatory attention. Curt Johannpeter died in 1983, after which his sons assumed management responsibilities. Internationalization began in Canada with the 1989 acquisition of Courtice Steel. Gerdau entered the United States in 1999 by acquiring a 75 percent interest in AmeriSteel from Kyoei Steel. Its American depositary receipts were listed on the New York Stock Exchange in the same year. In 2002, Courtice Steel and AmeriSteel were combined through Co-Steel, later renamed AmeriSteel. Gerdau continued expanding in North America with the purchase of North Star Steel in 2004, Chaparral Steel in 2007, MacSteel in 2008, and Tamco in 2010. It took full ownership of AmeriSteel in 2010. In Brazil and the Caribbean, the group expanded through acquisitions including COSIGUA and related companies. In the Dominican Republic, it bought a substantial stake in Industrias Nacionales, or INCA, in 2007; INCA later combined with Metaldom in 2014 to form Gerdau Metaldom. Gerdau also pursued innovation through Gerdau Graphene, established in 2019 with the University of Manchester's Graphene Engineering and Innovation Centre. The 2010s and 2020s brought portfolio discipline as well as expansion. Gerdau sold selected North American facilities to Optimus Steel and Commercial Metals Company, exited India in 2019, acquired Silat in 2020, and later sold its Colombian and Dominican Republic assets. Its acquisition of Dale's Recycling in 2024 reinforced access to automotive scrap. In 2025 it bought minority interests in Gerdau Summit from its Japanese partners. Today, Gerdau combines mini-mills, integrated mills, direct-reduced-iron plants, scrap collection, and downstream operations. Its steel is sold primarily in Brazil and North America, with additional Latin American and Asian activities. The company remains controlled by the Gerdau Johannpeter family while operating as a publicly traded steel group.

1. 2024Portfolio restructuring continues

   Gerdau sells Colombian and Dominican Republic assets and acquires Dale's Recycling in the United States.

   Source
2. 2020Silat acquired

   Gerdau purchases Siderúrgica Latino Americana.

   Source
3. 2019Gerdau Graphene formed

   Gerdau launches a graphene-materials venture with the University of Manchester's GEIC.

   Source
4. 2008MacSteel acquired

   The company expands its special-steel and North American operations through the MacSteel acquisition.

   Source
5. 2007Chaparral Steel and INCA transactions

   Gerdau acquires Chaparral Steel and takes a significant stake in Dominican producer INCA.

   Source
6. 2004North Star Steel acquired

   Gerdau purchases North Star Steel from Cargill.

   Source
7. 1999North American expansion and NYSE ADR listing

   Gerdau acquires a majority stake in AmeriSteel and lists American depositary receipts in New York.

   Source
8. 1989Entry into Canada

   Gerdau acquires Courtice Steel.

   Source
9. 1970Brazilian public listing

   Gerdau becomes publicly traded through listings in Rio de Janeiro and São Paulo.

   Source
10. 1969Company renamed Metalúrgica Gerdau

    The company adopts the Metalúrgica Gerdau S.A. name.

    Source
11. 1967São Paulo mini-mill acquired

    Gerdau expands steelmaking capacity through a mini-mill acquisition.

    Source
12. 1948First steel mill acquired

    The company buys a steel mill to secure raw material for its nail business.

    Source
13. 1901Pontas de Paris is founded

    João Gerdau establishes a nail-manufacturing business in Rio Grande do Sul, Brazil.

    Source

A large Americas-focused steel producer differentiated by long-steel expertise, electric-arc-furnace production, scrap recycling, regional manufacturing, and industrial product development.

• Construction steelLong steel

  Gerdau's construction portfolio includes reinforcing bar, structural sections, merchant bar, wire products, and related steel used in buildings, bridges, roads, industrial facilities, and other infrastructure. These products are manufactured across regional operations and sold through construction-material channels and direct industrial relationships.

• Special steelIndustrial steel

  Special-steel grades are produced for applications requiring controlled chemistry, mechanical performance, durability, or machinability. Typical customers include automotive, machinery, agricultural, energy, and other industrial manufacturers. The line complements Gerdau's higher-volume construction products with more specification-intensive materials.

• Wire rod and wire productsLong steel

  Wire rod and downstream wire products serve construction, fencing, industrial fabrication, fasteners, and other applications. They are produced from steelmaking and rolling operations and may be supplied in standard or customer-specific grades and dimensions.

• Steel railsInfrastructure steel

  Rail products form part of Gerdau's infrastructure-oriented offering. They are intended for railway and heavy-transport applications where dimensional consistency, strength, and wear performance are important.

• Recycled-scrap steelSteelmaking

  Gerdau uses ferrous scrap as a major steelmaking input, particularly in electric-arc-furnace operations. Its scrap collection and recycling activities support a circular production model and provide raw material for construction and industrial steel.

• Graphene-enhanced materialsAdvanced materials2019

  Through Gerdau Graphene, the group develops additives and materials incorporating graphene for potential industrial applications. The venture extends the company's innovation activity beyond conventional steel products.

• 2024Acquire Dale's RecyclingM&A

  Scrap access is strategically important to Gerdau's electric-arc-furnace and recycled-steel model.

  What changed. Gerdau acquired Dale's Recycling, an automotive scrap recycler operating in Tennessee, Kentucky, and Missouri.

  Aftermath. The transaction expanded the group's U.S. scrap-recycling footprint.

  Reported acquisition consideration. $60 million (2024)

  Source
• 2019Create Gerdau GrapheneStrategy

  Gerdau pursued new industrial-material applications beyond its core steel portfolio.

  What changed. It formed Gerdau Graphene in partnership with the University of Manchester's Graphene Engineering and Innovation Centre.

  Aftermath. The venture focused on developing and commercializing graphene additives and materials.

  Source
• 1999Acquire majority stake in AmeriSteelM&A

  Gerdau sought to establish a substantial operating platform in the United States.

  What changed. The company acquired 75 percent of AmeriSteel from Kyoei Steel.

  Aftermath. Production outside Brazil represented approximately 40 percent of the company's business after the expansion.

  Source

• 2016Bribery, tax fraud, and money-laundering allegationsControversy

  The company and then chief executive André Bier Gerdau Johannpeter faced legal claims alleging bribery of tax officials, losses to Brazil's tax revenue, laundering of funds, and influence peddling. The reported claims were connected with the Operation Zealots matter.

  Source
• 2015Operation Zealots tax investigationControversy

  Brazilian federal police searched Gerdau offices in connection with Operation Zealots, an investigation into alleged manipulation and fraud involving the country's tax appeals system.

  Source

• 2025Gerdau increases ownership of Gerdau Summit

  Gerdau acquired minority interests in Gerdau Summit from Sumitomo Corporation and Japan Steel Works.

  M&A
  Source
• 2024Gerdau sells Colombian and Dominican Republic assets

  Gerdau sold assets in Colombia and the Dominican Republic, including its interest in Gerdau Metaldom, to INICIA.

  M&A
  Source
• 2024Gerdau acquires Dale's Recycling

  The company acquired an automotive scrap recycler serving Tennessee, Kentucky, and Missouri, supporting its recycled-feedstock model.

  M&A
  Source
• 2020Gerdau acquires Siderúrgica Latino Americana

  The company acquired Siderúrgica Latino Americana, also known as Silat, strengthening its steel presence in Brazil.

  M&A
  Source
• 2019Gerdau sells Indian assets

  The company exited its Indian operations through an asset sale.

  M&A
  Source
• 2019Gerdau establishes graphene materials venture

  Gerdau formed Gerdau Graphene with the University of Manchester's Graphene Engineering and Innovation Centre to develop and commercialize graphene additives.

  Other
  Source
• 2018Gerdau sells Beaumont assets to Optimus Steel

  The company divested a wire-rod mill and two downstream facilities in Texas as part of its North American portfolio reshaping.

  M&A
  Source
• 2018Gerdau sells American rebar facilities to Commercial Metals

  Gerdau sold 33 rebar facilities and four electric-arc-furnace mini-mills to Commercial Metals Company.

  M&A
  Source
• 2018Gustavo Werneck becomes Gerdau chief executive

  Gustavo Werneck succeeded André Gerdau Johannpeter as chief executive, marking a leadership transition from the previous generation of family leadership to a professional executive.

  Leadership change
  Source
• 2007Gerdau acquires AmeriSteel and expands its North American long-steel platform

  Gerdau completed the acquisition of Chaparral Steel and related North American assets, strengthening its position in structural and long-steel products.

  M&A
  Source

1. Gerdau
2. Gerdau official website
3. Gerdau executives investigated in Brazil's Zelotes tax case
4. Gustavo Werneck becomes Gerdau chief executive
5. Gerdau acquires AmeriSteel and expands its North American long-steel platform