According to the Changjiang Commercial News, revenue and net profit have increased for four consecutive years. Ruihe Co., Ltd. (002620.SZ) has become a hidden champion in the building decoration industry by focusing on BIM technology with the help of blockchain. Changjiang Business Daily reporters found that the operating income of Ruihe Co., Ltd. increased from 1.522 billion yuan in 2014 to 3.614 billion yuan in 2018, which has doubled. Net profit also increased from 54.793 million yuan to 148 million yuan during the same period, a nearly double . Moreover, in the first three quarters of 2019, Ruihe's operating income was 2.681 billion yuan, a year-on-year increase of 3.27%; net profit was 141 million yuan, a year-on-year increase of 14.78%.