Circular No. 02/2006/TT-BBCVT of April 24, 2006, guiding the implementation of the governments decree No. 12/2006/ND-CP of January 23, 2006, detailing the implementation of the commercial law regarding international goods sale and purchase activities and goods sale and purchase agency, processing and transit with foreign parties for goods subject to specialized management by the ministry of post and telematics.