Article 54 A buyer shall properly keep complete account books related to his or her business and operational activities， the written auction record and other relevant data.
The duration prescribed in the above paragraph for keeping account books， the written auction record and other relevant data shall begin to be computed from the date when the trust auction contract is terminated and shall not be fewer than five years.
Article 55 Should an auction target need to handle， according to law， the procedures of change in the certificate and the transfer of property rights， the trustee and buyer shall handle necessary procedures with the relevant administrative department， on the strength of the auction completion certificate and relevant materials produced by the auctioneer.
第四节 佣 金Section Four Commission
Article 56 A trustee and a buyer may jointly set the commission ratio together with an auctioneer.
If the trustee， the buyer and the auctioneer have not set the commission ratio， while the auction is completed， the auctioneer may collect commissions not in excess of five percent of the auction completion price from the trustee and buyer， respectively.
The ratio of commissions to be collected shall be set in accordance with the principle of making an inverse ratio to the auction completion price.