5月27日电，牧原食品股份有限公司向港交所提交上市申请书，联席保荐人为摩根士丹利、中信证券、高盛。

Group 1 - The core point of the article is that Muyuan Foods Co., Ltd. has submitted a listing application to the Hong Kong Stock Exchange [1] - The joint sponsors for the listing are Morgan Stanley, CITIC Securities, and Goldman Sachs [1]