1 Qingdao Zhong Jian United Group Co., Ltd. (hereinafter referred to as "Zhong Jian United") was established in 2005 with a registered capital of 320 million yuan, which is the first domestic A-share listed construction enterprise in Shandong Province.
2. Jiuqiang Group was established in 2002. It is a private enterprise group with infrastructure investment, construction and operation as its core business. It has the first-class qualification of national highway and municipal engineering general contracting and several first-class professional contracting qualifications.