2021年8月23日海关总署更新美国宠物食品输华企业名单到71家，新增9家生产企业：
MI INDUSTRIES DBA NATURE'S VARIETY,
MI INDUSTRIES DBA NATURE'S VARIETY,
MERRICK PET CARE INC. - FACILITY 1 DRY PLANT,
KANSAS CITY TREATS, LLC,
PHELPS INDUSTRIES, LLC,
BOUDREAUX'S OPERATING ACQUISITION, LLC
SIMMONS PET FOOD, INC.,
SIMMONS PET FOOD, INC.,
HEARTLAND PET FOOD MANUFACTURING,