Shenzhen Great Roc Technology Co., Ltd.
Shenzhen Nillkin Technology Co., Ltd.
Shenzhen Yufan Star Technology Co., Ltd.
Fujian Muzhuxuan Housewares Co., Ltd.
Coolcold Technology (Shenzhen) Co., Ltd.
Guangzhou Kevin Electronic Co., Ltd.
Shenzhen Halnziye Electronic Co., Ltd.
Shanghai Whating Gel Ice Pack Co., Ltd.