Aleksandr Podushkin of Ozbekali Zhanibekov University said that the recovered artifacts are thought to have been made during the period of the Kangju state, which was made up of groups of Sarmatian, Xiongnu, and Saki peoples who lived along the Great Silk Road between the fifth century B.C. and the fourth century A.D. The Kangju state is known to have traded with Rome, China, and the Kushan Empire to the south, he added. The objects include two gold crescent-shaped earrings, which have been dated to the first century B.C. and are inlaid with jewels and decorated with clusters of grapes, and a large, circular bronze mirror resembling those made in China during the Han Dynasty, which ruled from 206 B.C. to A.D. 220.

Full article can be found here: https://www.archaeology.org/news/12434-240603-kazakhstan-burial-mound