The purchaser may award a contract without prior advertising or competitive tendering for the purchase of supplies or services on particularly advantageous terms either from an economic operator who is definitively ceasing trading or, subject to Article L. 2141-3, from an economic operator subject to one of the procedures provided for in Book VI of the Commercial Code, with the exception of those mentioned in Title I of Book VI of the same Code, or a similar procedure provided for by the legislation of another State.