LSB INDUSTRIES, INC.

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

Damien J. Renwick, Executive Vice President and Chief Commercial Officer

On May 13, 2026, Damien J. Renwick, our Executive Vice President and Chief Commercial 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 Mr. Renwick, acting through a broker, may sell up to an aggregate of 15,890 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 August 12, 2026 to June 30, 2027. The plan is scheduled toterminateon June 30, 2027, 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 Mr. Renwick or the broker, or as otherwise provided in the plan.

Jonathan Z. Ackerman, Member of the Board of Directors

On May 13, 2026, Jonathan Z. Ackerman, a member of ourboard of directors, entered into Rule 10b5-1 trading plan that is intended to satisfy the affirmative defense of Rule 10b5-1(c) and provides that Mr. Ackerman, acting through a broker, may purchase up to an aggregate of 9,000 shares of our common stock, subject to adjustments for stock splits, stock combinations, stock dividends and other similar changes to our common stock. Purchases of shares under the plan may begin on August 12, 2026. The plan will terminate upon the earliest to occur of the purchase of all shares subject to the plan, upon termination by Mr. Ackerman or the broker, or as otherwise provided in the plan.

Other than as described above, during the three months ended June 30, 2026, none of the Company’s directors or executive officers adopted orterminated 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.