“Duty owed to economic operators from GPA parties  “SCHEDULE 1A  PARTIES TO THE GPA  Regulation 2(1)  Armenia  Australia  Canada  European Union  Hong Kong, China  Iceland  Israel  Japan  Korea, Republic of  Liechtenstein  Moldova, Republic of  Montenegro  Netherlands with respect to Aruba  New Zealand  Norway  the Separate Customs Territory of Taiwan, Penghu, Kinmen and Matsu  Singapore  Switzerland  Ukraine  United States”.  4 51A. —(1) The duty owed in accordance with regulation 50 is a duty owed also to an  economic operator from a GPA party, but only where the agreement applies to the  procurement concerned.  (2) For the purposes of paragraph (1), the GPA applies to a procurement if—  (3) In this regulation, “relevant time” means the date on which the contracting authority  submitted a call for competition in respect of the contract to the UK e-notification service  or would have done so if it has been required by these Regulations to do so.”.  (5) After Schedule 1 (activities constituting works) insert—  (a) the procurement may result in the award of a contract of any description; and  (b) at the relevant time—  (i) a GPA party has agreed with the United Kingdom that the GPA shall apply to  a contract of that description; and  (ii) the economic operator is from that GPA party. 