Lanxess AG shares tumbled to their lowest level since 2009 after the German chemicals company failed to complete a planned asset sale, raising fears it could lose its investment-grade credit rating. The company announced that Advent will not acquire its 41% stake in the Envalior joint venture this year, citing the private equity firm's inability to secure financing.

Citigroup analyst Sebastian Satz called the outcome binary, warning that without the Envalior proceeds, Lanxess faces heightened balance sheet concerns and potential junk status. Moody's currently rates the company Baa3 with a negative outlook, just one notch above junk. The company maintains it remains financially solid with an undrawn credit line exceeding €1.35 billion ($1.6 billion) to cover maturing bonds.

European chemicals makers have been battered by high energy costs, Chinese competition, and trade barriers. The Middle East conflict has further clouded the industry's outlook, pressuring margins through higher energy costs. Deutsche Bank's Tristan Lamotte noted that Lanxess's inability to exit Envalior will prolong a period of high leverage as it struggles to pass on rising costs.