(FILES) The US Steel Mon Valley Works Edgar Thomson Plant along the Monongahela River in Braddock, Pennsylvania, as seen from North Braddock, Pennsylvania, on June 4, 2024. US President Joe Biden has decided to block the proposed $14.9 billion purchase of US Steel by Japan's Nippon Steel, according to two anonymous administration officials, the Washington Post reported on January 2, 2025. A White House announcement of the presidential finding is planned as soon as Friday unless Biden has a last-minute change of heart, which the officials do not expect, according to the Post. (Photo by Rebecca DROKE / AFP) (Photo by REBECCA DROKE/AFP via Getty Images)