your ID: 0030 First Name: rusen Last Name: Lu Affiliation: Shanghai Astronomical Observatory Title: 86 GHz VLBI Observations of the Southern Blazar PKS 1921-293 Authors: Rusen Lu \& Zhiqiang Shen Topic: 3 Session: oral Abstract: We report preliminary results from two epoch 86 GHz VLBI observations of the southern mm-bright blazar PKS 1921-293. The high resolution images showed, for the first time, the existence of faint jet emission at 86 GHz bending to the northeast of the compact core.