According to the media, Wu said that the blockchain was informed that Yibang, a mining machine manufacturer that is currently preparing for listing in the United States, has formally sued the chip company invested by Mihara, a chip company invested by Xiaomi, claiming that the 10nm Samsung wafer provided by the other party has quality problems, causing about 175 million. RMB loss. According to a person familiar with the matter, the Hongkong subsidiary Hongkong Bit Co., Ltd., a subsidiary of the mining machine manufacturer Yibang, has recently filed a lawsuit against Vericore Microelectronics (Shanghai) Co., Ltd.'s wholly-owned subsidiary, Veristar (Hong Kong) Co., Ltd. in the Hong Kong High Court. Yibang said that the 2589 10nm Samsung wafers provided by the defendant to the plaintiff had quality defects, which caused the plaintiff to damage about USD 25.07 million, or about RMB 175 million. Everbright was sued by customers for product quality issues in 2017, and it is not yet possible to confirm whether these batches of 10nm chips have been used on Wingbit miners. It is reported that VeriSilicon Microelectronics mainly provides chip design and mass production services, and is a science and technology board to be listed by Xiaomi. After being listed in Hong Kong, Everbright is preparing to go to the United States in the near future. The lawsuit may have an impact on the two companies to be listed.