Exhibit 99.1 LSB INDUSTRIES, INC. REPORTS OPERATING RESULTS FOR THE 2026 SECOND QUARTER OKLAHOMA CITY, Oklahoma—July 29, 2026—LSB Industries, Inc. (NYSE: LXU) ("LSB," "we," "us," "our," or the "Company") today announced results for the second quarter ended June 30, 2026. Second Quarter 2026 Results and Recent Highlights "Our second quarter results reflect solid execution through an important period of planned maintenance at two of our three production facilities," stated Mark Behrman, LSB Industries' Chairm ...