Shandong Grain Rain Biotechnology Co., Ltd. is a biopharmaceutical enterprise integrating independent research and development, production and sales, and focusing on the deep processing of corn starch. With a total investment of 4.26 billion yuan, it covers an area of 763.44 acres.

Grain Rain project is built in two phases, it has area of 243 acres.  With annual capacity of 250,000 tons of maltose, 50,000 tons of maltitol and 200,000 tons of intelligent storage facilities. The second phase has area of 520.44 acres.  It mainly builds an annual output of 200,000 tons of maltodextrin, 200,000 tons of glucose, 50,000 tons of sorbitol production lines and 150,000 tons of intelligent storage facilities.