Circular No. 50/2006/TT-BTC dated June 7, 2006 of the Ministry of Finance guiding the application of import duty and enterprise income tax preferences to Dung Quat oil refinery project

Circular No. 50/2006/TT-BTC dated June 7, 2006 of the Ministry of Finance guiding the application of import duty and enterprise income tax preferences to Dung Quat oil refinery project