The invitation to tender was published in accordance with the Public Procurement Act and the Public Procurement Regulations, Part I and Part III in accordance with the procurement procedure for an open tender contest, cf. the the Public Procurement Regulations § 13-1 (1). The contracting authority did not receive any tenders by the deadline for receipt of tenders. The Contracting Authority implemented thereafter a contest with negotiations without a prior publication, c.f. the Public Procurement Regulations § 13-3 letter a.