According to the latest disclosure from the Hong Kong Stock Exchange, on December 16, Kang Yiguo purchased an additional 10,000 shares of SIWI SCI & TECH (01202) at an average price of HK$0.898 per share, totaling HK$8,980. Following this transaction, Kang's total shareholding in the company has risen to 656,000 shares, representing a 0.41% stake.