Sloppy work in making railway beds by Hyundai Engineering & Construction Co., Ltd. in the Republic of Korea, which received an order to construct some sections, was found, and in addition to this, intentions of the companies in nations concerned were in disarray.
また建設工事の一部区間を受注していた韓国の現代建設による路盤の手抜き工事が発覚するなど、各国企業の思惑が入り乱れた。