Neste, a leading biofuel refiner, has warned of a weaker biofuel outlook and issued a guidance cut, resulting in a significant drop in its shares. The company's stock has fallen more than 10%, reaching its lowest level since October 2017. Meanwhile, Husqvarna Group also faced a sharp decline in its shares following a profit warning. In related news, U.S. chemicals maker Dow Inc. has lowered its third-quarter revenue forecast to approximately $10.6 billion, down from the consensus expectation of $11.0 billion, due to an unplanned event at its Texas ethylene plant. Dow's operating EBITDA is now expected to be around $1.3 billion. The company's CEO, Jim Fitterling, cited 'fouling' as the cause of the production challenges. Dow's stock has also dropped following the revised outlook.