An association may be organized to engage in any activity in connection with:
(1) The producing, marketing or selling of the agricultural products of its members;
(2) The harvesting, preserving, drying, processing, canning, packing, storing, handling, shipping or utilization thereof;
(3) The manufacturing or marketing of the by-products thereof;
(4) The manufacturing, selling or supplying to its members of machinery, equipment or supplies;
(5) The financing of the above-enumerated activities; or
(6) More than one of the activities specified herein.