LSB INDUSTRIES, INC.

Adoption of 10b5-1 Trading Plans by Our Officers and Directors

On March 13, 2025, Cheryl A. Maguire, our Executive Vice President and Chief Financial Officer, entered into a Rule 10b5-1 trading plan that is intended to satisfy the affirmative defense of Rule 10b5-1(c) and provides that Ms. Maguire, acting through a broker, may sell up to an aggregateof 35,000 shares of our common stock, subject to adjustments for stock splits, stock combinations, stock dividends and other similar changes to our common stock. Sales of shares under the plan may only occur from June 12, 2025 to June 11, 2026. The plan is scheduled to terminate on June 11, 2026, subject to earlier termination upon the sale of all shares subject to the plan or the expiration of all sale orders under the plan, upon termination by Ms. Maguire or the broker, or as otherwise provided in the plan.

On March 13, 2025, Kristy D. Carver, our Senior Vice President and Treasurer, entered into a Rule 10b5-1 trading plan that is intended to satisfy the affirmative defense of Rule 10b5-1(c) and provides that Ms. Carver, acting through a broker, may sell up to an aggregateof 21,641 shares of our common stock, subject to adjustments for stock splits, stock combinations, stock dividends and other similar changes to our common stock. Sales of shares under the plan may only occur from June 13, 2025 to February 28, 2026. The plan is scheduled to terminate on February 28, 2026, subject to earlier termination upon the sale of all shares subject to the plan or the expiration of all sale orders under the plan, upon termination by Ms. Carver or the broker, or as otherwise provided in the plan.

Other than as described above, during the three months ended March 31, 2025, none of the Company’s directors or executive officers adoptedor terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.