XI’AN TOOL IMPORT AND EXPORT CO.,LTD.

Shanghai Harden Tools Co., Ltd.

Shaanxi Honesty Trading Co.,Ltd

XI’AN DINGT METAL PRCOCESSING CO., LTD

Worlee Tools & machinery GmbH

Xi’an Stainless Steel Pipes Co.,Ltd

Xi’an Redstone technique Co.,Ltd.

AMC Group Limited

CGeneTech (Suzhou, China) Co., Ltd

TOPTION INSTRUMENT CO.,LTD