American Brands plans a $100-million writeoff.

The third-quarter charge covers plant closings in the company’s tobacco operation and a reduction in the goodwill of an office products unit, Chairman Edward W. Whittemore said, adding that the writeoff will reduce earnings for the quarter and the year. In the third quarter last year, the company reported net income of $114 million on sales of $2 billion. Whittemore also announced a 2-for-1 stock split, payable to holders of record Sept. 10, and an increase in the quarterly dividend equivalent to $1.04 on the pre-split shares, up from $1.01.