If a corporation, for the purpose of ensuring payment of its bonds or other indebtedness, places property in trust or sets aside certain amounts in a sinking fund under the control of a trustee who may be authorized to invest and reinvest such sums from time to time, the property or fund thus set aside by the corporation and held by the trustee is an asset of the corporation and any gain arising therefrom is income of the corporation and shall be included as such in its gross income.
14.26 Ark. Code R. 51-404(a)(1)