No business entity shall engage in, or cause its affiliates or any other business entity to engage in, discontinuing a transaction, reducing the transaction volume, or giving a disadvantage to any other business entity that has done any of the following acts in relation to unfair trade practices under Article 45(1) and practices of resale price maintenance under Article 46, on the grounds that such other business entity has done such act:
1. Filing a request for dispute mediation under Article 76(1);
2. Filing a report under Article 80(2);
3. Cooperating in an investigation conducted by the Fair Trade Commission under Article 81.