In China the site for microblogging is Sina Weibo (新浪微博). A study of retweeting on the Chinese site found that people were more likely to retweet information when the source of the communication exhibited the traits of trustworthiness, expertise and attractiveness.
Determinants of information retweeting in microblogging
Liu, Zhiming; Liu, Lu; Li, Hong. Internet Research22. 4 (2012): 443-466.