Article 64 Should a trustee violate the stipulation of Article 30 of this Law by participating in the bidding or trusting others to participating in the bidding for him or her， the administrative department for industry and commerce may impose on the trustee a fine that is up to 30 percent of his or her auction completion price.
Article 65 By violating the stipulation of Article 37 of this Law， if bidders viciously collaborate with other bidders or if bidders do so with auctioneers， thus causing losses to others， the auction shall become null and void and they shall bear the liability of compensation according to law. The administrative department for industry and commerce shall impose on the bidders participating in vicious collaboration a fine that is 10 percent to 30 percent of the highest bidding price； and impose on the auctioneers participating in vicious collaboration a fine that 10 percent to 50 percent of the highest bidding price.
Article 66 By accepting commissions in violation of the stipulation of Section Four of Chapter Four of this Law concerning the ratio of commissions， an auctioneer shall return that part in excess of the reasonable amount to the trustee and the buyer.
The price control department may impose on the auctioneer a fine that is 100 percent to 500 percent of the commissions.