According to the news, Sina Weibo invested 9 million RMB to EC comapny "Kuaishubao" by using their Weibo specific fund.
Kuaishubao is a one of EC company in China for selling mainly books, and it's a their feature they deliver ordered products within in a hour on large cities(ex. Beijing, Shanghai, Shenzhen and so on).
Actually, you may feel 9 million RMB is a little bit less amount, but Sina Weibo said their one of profit source will be EC business, so this action is a prologue that they start to accelerate their EC business.
We will have to keep attentions what Kuaishubao will do actions on Sina Weibo from now on.
Original article => TechWeb