A now eight-year-old ongoing antitrust lawsuit involving major players in the steel industry has shown no signs of wrapping up, as three companies continue to push back.

In 2008, Pennsylvania-based Standard Iron Works and four other companies filed a lawsuit alleging U.S. Steel and ArcelorMittal conspired with six other domestic steel manufacturers “to manipulate the supply and price of steel products sold in the United States,” according to court documents. The plaintiffs alleged that, from April 1, 2005, to December 31, 2007, the eight steelmakers “conspired to restrict their output, thereby increasing the prices they were able to charge for steel products.”

According to court documents, the plaintiffs believe “steel industry executives … got together in trade association meetings and otherwise during the 2005-2007 timeframe to discuss and agree upon the benefits of industry-wide production restraint, after which they imposed sharp production cuts to inflate the price of steel.”

Five of the eight companies on the defendants’ side have already settled, and their distribution funds were approved last fall. Commercial Metals Company, AK Steel Holding Corp., Gerdau Ameristeel Corp., ArcelorMittal and U.S. Steel combined for settlement funds totaling just under $103.7 million. They all denied any wrongdoing but claimed to have settled in order to avoid the cost of further litigation and trial.

The three remaining companies—Nucor, Steel Dynamics Inc. (SDI) and SSAB Swedish Steel—have continued the litigation process since. The defendants referred to the lawsuit as a “fishing expedition,” noting in court documents last year that the plaintiffs were demanding documents and information from parties well below the “top executive” level and are steering beyond the scope of the case.

Last month, the judge denied non-party discovery as requested by the plaintiffs but authorized them to take the depositions of John Ferriola, current CEO of Nucor; Mark Millett, current CEO of Steel Dynamics; and John Tulloch, a retired executive of IPSCO and SSAB.

On June 29, the parties filed a joint status report to update the court regarding the progress of discovery. In that update, they said the three executives are scheduled to give depositions on three different dates in July and will report to the court when transcripts are available.

The plaintiffs note in a late-May filing that these three witnesses are key to the case because “they were top executives directly involved in production and pricing decisions during the conspiracy period… were key executive-level decision-makers for steel production and pricing during the relevant period… attended relevant industry and trade association meetings [and] are squarely relevant to disputed material issues.”