Circular No. 10/2006/TT-BTM dated June 1, 2006 of the Ministry of Trade amending and supplementing Circular No. 08/2006/TT-BTM which guides the identification of origin of imports and exports which are not wholly obtained goods defined in the Government’s Decree No. 19/2006/ND-CP dated February 20, 2006, detailing the Commercial Law regarding the origin of goods