According to the latest data from the Hong Kong Stock Exchange, on March 9, Deep Source Holdings Limited increased its stake in ESTUN (02715) by 5.09 million shares, with a price per share of HK$15.36, resulting in a total transaction value of approximately HK$78.16 million. Following this acquisition, the firm's total shareholding has reached 5.09 million shares, representing a 5.26% stake in the company.