周生生去检测了：金含量99.99%、99.99%、99.98%

Group 1 - The company acknowledges customer concerns regarding the quality of a gold pendant purchased by a customer, confirming that the batch meets national standards based on internal testing [1] - The company has sent the same batch of products for third-party testing, which confirmed the gold content as 99.99% [1] - The company is cooperating with relevant authorities and will provide updates on the situation [2] Group 2 - A customer reported issues with a gold pendant purchased for 2306 yuan, claiming it showed scratches and white marks shortly after first use [4] - The customer conducted independent testing, revealing significant discrepancies in gold content across different points of the pendant, with the lowest reading at 64.37% [6] - The local market supervision authority has intervened, suggesting that both parties agree to send the pendant for formal evaluation by a professional third-party institution [7]