Shares were down 10.18% to €8.94 ($9.82) in electronic trading in Frankfurt by mid-morning Tuesday, following a 26.6% plunge Monday amid a panic among investors triggered by an article by the Wall Street Journal.

The newspaper said that a district court in Michigan had rejected a key defence argument by the German company that was based on European cartel legislation and which aimed to head-off the need to pay claims by Hemlock related to past silicon delivery contracts.