Group 1 - The core viewpoint of the article highlights the significant stock price fluctuation of Shenghui Clean (02521), which dropped by 34% yesterday but rebounded by over 11% today, currently trading at HKD 0.78 with a transaction volume of HKD 16.1 million [1] - Huali Co., Ltd. announced that its wholly-owned subsidiary, Huali Asia, plans to acquire 19% of Shenghui Clean's shares for HKD 47.5 million, making it the second-largest shareholder post-transaction [1] - Shenghui Clean specializes in property cleaning services and public space cleaning services, indicating its operational focus within the cleaning industry [1] Group 2 - On January 18, Huali Co., Ltd. received an inquiry letter from the Shanghai Stock Exchange regarding the acquisition, requesting clarification on the investment purpose, necessity, risks, pricing basis, and reasons for the target company's performance decline [1] - The company is required to respond to the inquiry letter within five trading days, emphasizing the regulatory scrutiny surrounding the acquisition process [1]