Audit and supervision department of biological engineering Yinfeng Group Co. Ltd.

Mailbox：yfswshenji@163.com

Phone：0531-88987471/88806226

QQ：3090883643

ADD：Shandong Ji'nan hi tech Development Zone Export Processing Zone, No. 1109 North building, No. three road, Hong Kong Road, No. three

Zip code：250100

Audit and supervision department of Shandong Yinfeng Investment Group Limited

Mialbox：sdyfsjjc@163.com

Phone：0531-89019000 0531-89017898

QQ：2733237560

ADD：Shandong province Ji'nan City District Li Yang Street 6, Yinfeng building 11 floor

Zip code：250004