荣盛发展：中冀投资参与了奕斯伟材料B轮和C轮投资，公司持有中冀投资股份有限公司52.2152%股份

Group 1 - The company Rongsheng Development confirmed that its holding company Zhongji Investment currently holds 62.44 million shares of the Sci-Tech Innovation Board listed company Xi'an Yicai [1] - Zhongji Investment participated in the B and C round investments of Yisiwei Materials [1] - Rongsheng Development holds a 52.2152% stake in Zhongji Investment Co., Ltd. [1]