With two bidders disclosed in a matter of days and more in the wings, United States Steel Corporation — a symbol of American industrialization that for more than a century helped build everything from the United Nations building at New York City to the New Orleans Superdome — appears to be on the cusp of being absorbed.

Here’s what’s happened so far, and how the acquisition of U.S. Steel could reshape steelmaking globally.

BIDDING WAR

After rejecting a $7.3 billion buyout proposal from rival Cleveland-Cliffs on Sunday, U.S. Steel said it was considering its next move. On Monday, the industrial conglomerate Esmark offered $7.8 billion for the Pittsburgh steelmaker.

Shares of U.S. Steel soared more than 30 percent Monday with good odds that bids for the 122-year-old steel producer will head higher.

U.S. Steel says it has other offers to consider as well, and the company gave no timeline for if and when it might make any decision about selling itself.

A POTENTIAL GIANT

Cleveland-Cliffs said its proposal, first made on July 28, would create a company that would be among the ten biggest steelmakers in the world and one of the top four outside of Communist China, which dominates global steel production. Cleveland-Cliffs chief executive Lourenco Goncalves said a tie-up between the two American steelmakers would create a “lower-cost, more innovative and stronger domestic supplier for our customers.”

Mr. Goncalves said he’s ready to continue talks with U.S. Steel despite its rejection of the company’s initial offer.

Cleveland-Cliffs is the largest producer of flat-rolled steel and iron in North America. Acquiring U.S. Steel would further shrink the number of players in the American steelmaking industry, which has experienced significant consolidation in recent years, including the two steelmakers at the center of developments this week.

The proposed acquisition would give Cleveland-Cliffs control of about 50 percent of the domestic flat steel market and 100 percent of blast furnace production, Citi analysts wrote in a note to clients. It would also create “close to a domestic monopoly” on auto body sheet steel and close to 100 percent of American iron ore.

That will most certainly garner the interest of antitrust regulators who, under the Biden administration, have raised the bar for mergers in a number of industries. Automakers and other big buyers of steel will also likely push back over shrinking competition among American steelmakers.

SOARING STEEL PRICES AND CONSOLIDATION

Soaring prices have helped fuel consolidation in the steel industry this decade. Steel prices more than quadrupled near the start of the pandemic to about $2,000 a metric ton by the summer of 2021 as supply chains experienced gridlock, a symptom of surging demand for goods and the lack of anticipation of that demand.

Cleveland-Cliffs acquired AK Steel in 2019, right before steel prices began to spike, and within a year, it acquired ArcelorMittal USA in 2020 for $1.4 billion. U.S. Steel bought Big River Steel the following year.

Prices have settled back to around $800 a metric ton, but that remains at the top end of the spectrum for steel prices over the past six years. An extended economic rebound, particularly in the U.S., has helped keep prices for flat-rolled steel elevated.

U.S. STEEL HISTORY

U.S. Steel has been a symbol of industrialization since it was founded in 1901 by J.P. Morgan, Andrew Carnegie, and others, and the domestic steel industry dominated globally before Japan, then China, became the preeminent steelmakers over the past 40 years.

The company survived the Great Depression and became an integral part of American efforts in World War I and II, supplying hundreds of millions of tons of steel for planes, ships, tanks, and other military gear, in addition to steel for automobiles and appliances.

During the late 1970s and early 1980s — amid an energy crisis and multiple recessions — U.S. Steel cut production and spun off many of its other businesses. With oversupply and an influx of lower-priced steel imports dragging down prices into the new century, the company reorganized in 2001 and separated its energy business, which became Marathon Oil Corp.

The 64-story U.S. Steel Tower still looms over the Pittsburgh skyline, but U.S. Steel is no longer its biggest tenant. That would be University of Pittsburgh Medical Center, a local health system, and its name is now at the top of the tower.

GLOBAL STEEL PRODUCTION

China and Chinese companies have come to dominate global steel production. Of the nearly 2 billion tons of steel produced annually across the globe, about 54 percent comes from China, according to the World Steel Association.

China’s Baowu Group, a state-owned iron company based at Shanghai, churned out nearly 120 million metric tons of steel in 2021.

Cleveland-Cliffs and U.S. Steel combined that year produced almost 33 metric tons of steel, according to the World Steel Association. The combined entity would vault immediately to a top ten steelmaker globally, but it will still be at the lower end of that list.

It would not alter the position of American steelmaking as a whole, of course, which currently ranks behind China, India, and Japan.