In late 1990, Leaf announced plans to close its O'Hara facility and move production of two other D. L. Clark candy bars, the Zagnut and P. B. Crunchers, to the Chicago area. They decided to cease production of the other Clark products, including the Clark Bar, for which their marketing efforts had failed to achieve a national profile.
In late 1990, Leaf announced plans to shut down its O'Hara facility and relocate production of two other D. L. Clark confectionery items, the Zagnut and P. B. Crunchers, to the Chicago region. They chose to discontinue manufacturing of the remaining Clark products, including the Clark Bar, for which their promotional efforts had been unsuccessful in achieving widespread recognition.