Chimshang Gyalsig Shuteng (Tibetan: མཆིམས་ཞང་རྒྱལ་ཟིགས་ཤུ་ཏེང, Wylie: mchims zhang rgyal zigs shu teng; ?
The king Me Agtsom was murdered by his two ministers, Lang Nyesig and Bel Dongtsab, in 755.
Obtaining this information, Shang Gyalsig quickly put down the rebellion together with Nganlam Takdra Lukhong, arrested them and had them purged.
They installed the young prince Trisong Detsen as the new king, and both received high positions.
They sank Chang'an, the Chinese capital, installed a prince Li Chenghong (李承宏) as a puppet emperor, but had to withdraw after 15 days because the Tibetan soldiers could not stand the hot weather in Chang'an.