According to the disclosure of the Hong Kong Stock Exchange on January 24, Arrail Group Limited Ruier Group Co., Ltd. submitted the main board of the Hong Kong Stock Exchange, with Morgan Stanley and UBS as co-sponsors. The company submitted the form to the main board of HKEx on July 1, 2021.

According to Frost Sullivan, according to the total income in 2020$riel Group (temporary Code) (810237.HK) $It is the largest oral health service provider in China's high-end private oral medical service market, and the company is also the third largest oral medical service provider in the whole private oral medical service market in China in terms of income in the same period. Since its establishment in 1999, the company has served about 7.4 million patients in the past decade and has played an important role in raising and promoting Chinese public and consumer awareness of the importance of oral care and good oral hygiene. The company has become a leading dental service group in China, with operations throughout the country, while operating Ruier Dentistry (a leading brand of high-end oral services) and Ruitai Oral (mid-range oral services brand).

In 2018, 2019, 2020 and the six months ended September 30, 2020 and 2021, the income of Reel Group was approximately 1.08 billion, 1.1 billion, 1.515 billion, 720 million and 841 million RMB, respectively. In the same period, the losses during the period were about 304 million, 326 million, 597 million, 188 million and 464 million yuan, respectively.