Airports of Thailand (AoT) is likely to scrap bidding to run duty-free pick-up counters at Don Mueang airport after only one company expressed interest in the contest.Wichai Bunyu, vice-president of AoT for business development and marketing, said only King Power has purchased a bid envelope so the board will be asked this week to scrap the bidding. He said the duty-free pick-up counters at Don Mueang have failed to draw interest in part because firms believe the AoT will provide a central pick-up counter at the airport and see no need to invest.He added that a fresh round of bids may be called early next year.Mr Wichai said bids to run duty-free pick-up counters at Suvarnabhumi, the country's gateway airport, will proceed as planned after the contest drew two potential bidders -- King Power and Bangkok Airways.He said bidders are required to submit their envelopes on Jan 17 and the result will be sent to the AoT's board in late February.With duty-free pick-up counters at Don Mueang and Suvarnabhumi airports, travellers can shop at downtown duty-free shops and pick up their purchases at the designated counters before boarding.