An employees' trust may be permitted to accumulate for such time as may be necessary to accomplish the purpose for which it is created, and is not invalid as violating any rule of law against perpetuities or the suspension of the power of alienation of title to property. The income from any property held in an employees' trust may continue in perpetuity or in accordance with the terms of such trust, and the plan of which such trust forms a part, for such time as may be necessary to accomplish the purpose for which such trust is created.
ORS 128.520