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The operating agency of Busan Lines 1 to 4 is 'Busan Transportation Corporation', but before that, it was Busan Transportation Corporation under the Ministry of Construction and Transportation. Let's introduce the process of increasing debt and the change of Busan Urban Railroad operating agency. #BusanLine1 #BusanTransportationCorporation #BusanTransportationCorporation 00:00 Intro 00:27 Busan Urban Railroad, a swamp of deficit 03:15 Taking it back, 2 trillion won in debt 06:10 From light rail to extension of Busan Line 1