Double Tower Food and other companies have invested in the establishment of a biotechnology company in Qingdao.

According to the Enterprise Check App, Qingdao Huagu Yunhui Biotechnology Co., Ltd. was established with Li Haitao as the legal representative. Its business scope includes processing of vegetables, fruits, and nuts; production, sales, processing, transportation, storage, and other related services of agricultural products. Shareholding penetration data from Enterprise Check shows that the company is jointly owned by Shandong Aizefuji Biotechnology Co., Ltd., a subsidiary of Shuangta Food.