[2][3] Khitan and Han Chinese administrators were sent to Bukhara and Samarqand to govern by the Mongols in the 1220s and this was witnessed by Qiu Chuji on his way to meet Genghis Khan in Afghanistan.
[10] The Mongols sent new people to repopulate the Jaxartes river (lower Syr Darya) based city of Yangikent (Iamkint or Sakint) after deporting and killing the natives.
The upper Yenisei region of Qianqianzhou received many Han Chinese artisans and the western Mongolia based military base and granary city of Chinqai received many Han Chinese artisans put there by Mongols as heard in 1221-1222 by Li Zhichang who was going to Central Asia.
They managed to rehabilitate and reconstruct the city since Samarqand was praised as a productive flourishing area before at least 1225 when the Khitan Yelu Chucai came there.
Wheat and hemp were grown next to mud huts near the Kerulun river by Han Chinese farmers in 1247 near Karakorum as seen by Zhang Dehui.
Siberia's Upper Yeniesei area, Samarkand and western Mongolia all had Han Chinese craftsmen as seen by Li Zhichang in 1221-1222.
[14][15][16][17] The Tabriz based Rob'-e Rashidi and the Maraghe observatory in Ilkhanid Iran had scientists and scholars of Chinese origin.
[22] Han Chinese were sent to the Upper Yenisei valley as weavers, into Samarkand and Outer Mongolia as craftsmen as noticed by Ch'ang-ch'un in 1221-22 when he travelled to Kabul from Beijing and they moved to Russia and Iran.
Han Chinese, Mongols, Uighurs, Venetians and Geonese all lived in Tabriz were paper money was introduced and movable type printing and wood engraving as well as paper money, printed fabrics and playing cards spread from china to Europe due to the Mongols.
[24][25][26][27][28][29][30][31][32][33] During the Safavid dynasty, Abbas I (reigned 1587–1629) brought 300 Chinese potters to Iran to enhance local production of Chinese-style ceramics.
Large-scale investment projects are also becoming more common; businessmen from Zhejiang began building Iran's first Chinese trade complex in 2006.