1.January 2022. The company name is officially registered: Qingdao Dajiu Zhengji Innovation Technology Co., Ltd.
2.March 2022. Amazon Japan is officially launched; its first product: gait belt.
3.May 2022. Amazon Japan has launched hexagonal children’s trampoline products.
4.July 2022. Amazon Japan has launched children’s pillow products.
5.December 2022. Brand: LUCKY BIG NINE, officially obtained the certificate from the Japanese Government Patent Office.
6. February 2023. Amazon Japan has launched square children’s trampoline products.
7.March 2024. The website (www.bignine.cn) is officially launched. Languages are updated simultaneously: English, Chinese, Japanese.
8.March 2024. Amazon Australia, officially launched; product name: Gait Belt.
9.March 2024. Amazon Japan, officially launched; product name: Baby Jumper with Stand.
10.October 2024. Amazon USA, officially launched; product name: Heart Rate Monitor Replacement Strap.








