SERIES B PREFERRED SHARE PURCHASE AGREEMENT by and among Slanissue Holdings Limited Slanissue Hong Kong Limited (芝兰玉树香港有限公司) Slanissue (Beijing) Information Technology Co., Ltd. (芝兰玉树(北京)信息技术有限公司) Beijing Slanissue Technology Co., Ltd. (北京芝兰玉树科技有限公司)...