President Joe Biden has blocked the acquisition of US Steel by Japan's Nippon Steel, valued at USD 15 billion. This decision, announced on Friday, follows his earlier promise in March to prevent the deal. The Committee on Foreign Investment in the United States (CFIUS) could not agree on potential national security risks last month, prompting Biden's action.

The history of US Steel is intertwined with America's rise as a global power. Founded in the late 19th century, it has supplied materials for iconic structures and military equipment. The company was formed through a merger financed by J.P. Morgan, combining Andrew Carnegie's Carnegie Steel Co. with Federal Steel in the early 20th century.
US Steel's Expansion and Challenges
US Steel quickly became the world's first USD 1 billion company. In 1907, it absorbed its largest competitor, which led President Theodore Roosevelt to accuse it of violating the Sherman Anti-Trust Act. Despite government efforts to dismantle it in 1911, US Steel remained intact.
The company pioneered vertical integration, controlling coal and iron ore mines, coking ovens, railroads, ships, and later oil production. This strategy aimed to manage costs effectively by overseeing every aspect of its operations.
Impact of Economic Shifts
During the Great Depression and World War II, US Steel modernised its operations. It supplied steel for household appliances, automobiles, and construction projects. By mid-century, it played a crucial role in wartime production, doubling raw material output and employing 340,000 people by 1943.
By 1955, the US provided about 40% of global steel demand. However, competition intensified over the following decades. By the mid-1980s, US steel production accounted for only 11% of global use as economic growth slowed in developed countries.
Strategic Diversification
US Steel sought control over input materials from its inception under Andrew Carnegie. It invested in iron ore and coal mines to fuel its furnaces and expanded into energy by acquiring Marathon Oil Co. in 1982 and Texas Oil and Gas Corp. in 1986.
The company rebranded as USX Corp., reflecting its diversified interests. However, this structure did not endure long-term.
Modernisation Efforts
The US imposed stricter import restrictions on steel in the 1960s and 1970s while urging domestic companies to modernise for better global competitiveness. By the 1970s, US steel producers faced higher operating costs compared to Japan due to various factors like labour expenses and outdated plants.
In 2001, USX Corp.'s stockholders approved a reorganisation plan that split the company into two entities: United States Steel Corporation and Marathon Oil Corp., which began operating independently in 2002.
Recent Developments
As profits dwindled due to cheaper imports flooding the market, US Steel consolidated its operations by acquiring National Steel Corp.'s assets in 2003. This move increased its iron ore reserves and steel-making capacity, elevating it from the world's 11th largest steel producer to fifth at that time.
Despite these efforts, US Steel became an acquisition target as the industry continued to contract. In 2023, Cleveland-Cliffs proposed a USD 7 billion buyout offer to create one of the top ten global steelmakers. However, US Steel rejected this offer while considering other unsolicited bids.
By late 2023, Nippon Steel's USD 14.1 billion all-cash offer was accepted but ultimately blocked by Biden's administration. "We need major US companies representing the major share of US steelmaking capacity to keep leading the fight on behalf of America's national interests," Biden stated on Friday.
Currently valued at around USD 7 billion, US Steel is working towards modernising its operations with a goal of achieving net-zero carbon emissions by 2050. It is also developing verdeX sustainable steel using up to 90% recycled materials.
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