It should be pretty reliable.

Jinjiujiu is a cultural gold and silver brand that was registered and launched by Beijing Jinjiu Yinjiu Digital Technology Co., Ltd. with the National Trademark Office on August 27, 2020.

Beijing Jinjiu Yinjiu Digital Technology Co., Ltd. (referred to as "Jinjiu Yinjiu") was established in December 2016. It was formerly known as Beijing Depository Precious Metals Co., Ltd. The name change was completed on March 26, 2021. The company has a registered capital of 50 million yuan and 12 patents to be certified. The physical store is located on the 3rd floor of Tower A, Zhongxin Building, Dongcheng District, Beijing.