Group 1 - The core point of the article is that Sytack (301568) has a 1.94% stake in Sitan Technology, which is a company it has invested in using its own funds [1] Group 2 - Sytack responded to investor inquiries on an interactive platform regarding its investment in Sitan Technology [1] - The investment reflects Sytack's strategy to diversify its portfolio through equity stakes in technology companies [1]