This Act shall not apply to any act done by an association established upon satisfying the following requirements (including a federation of associations); provided, this shall not apply to unfair trade practices or price increases by unfairly restricting competition:
1. The association shall aim at mutual aid of small business entities or consumers;
2. The association shall be established voluntarily, and its members may join and withdraw voluntarily;
3. Each member shall have an equal voting right;
4. Where profits are distributed to members, the limit thereof shall be determined by the articles of association.