Hebei Shengkui Plastic Industry is Liu Yan’s boss. According to relevant public information inquiries, Liu Yan serves as the legal representative of companies such as Shangyang Convenience Supermarket in Xinji City, as a shareholder of Hebei Shengkui New Building Materials Co., Ltd., Xinji Nuankai New Material Technology Partnership (Limited Partnership), and as a shareholder of Hebei Shengkui New Materials Technology Partnership (Limited Partnership). Executives of Shengkui New Building Materials Co., Ltd. and other companies.