TST stands for "Tsinghua Unigroup Semiconductor Technology," which is a brand under the Tsinghua Unigroup umbrella, a major semiconductor manufacturer based in China.
TST specializes in a variety of semiconductor products, including integrated circuits, memory chips, and other electronic components used in various applications such as consumer electronics, telecommunications, and automotive industries.
TST is headquartered in mainland China, specifically in Beijing. While its primary operations are based in China, TST is expanding its reach and may have partnerships or collaborations with international companies in the semiconductor sector.