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 made a decision to close its O'Hara factory and relocate production of two other D. L. Clark candies, the Zagnut and P. B. Crunchers, to Chicago. As a result, they decided to stop manufacturing all but two of their Clark products, including the Clark Bar, for which their marketing efforts had not been successful in gaining national recognition.