The annual M.S. enrollment in THCST is about 160. The annual M.E. enrollment in THCST is about 160. The master graduate students are admitted through three channels: students ranked high in the National Post-graduate Entrance Examination (NPEE), senior undergraduate students from Tsinghua with the exemption of NPEE, and those from other universities with the exemption of NPEE. Table 1 shows the number of students enrolled each year. The duration of graduate study for master students is two to three years.