CTRL Group Limited operates through its subsidiary CTRL Media Limited as an integrated advertising services provider based in Hong Kong, primarily serving game publishers, entertainment companies, and gaming platforms. The company offers online advertising, offline and web banner marketing, strategic planning and consulting services, and administrative support, recognizing revenue through a mix of point-in-time recognition for certain ad placements and services performed, and over-time recognition for longer-term engagements. The business generates revenue predominantly from offline advertising placements and online digital advertising, with customers concentrated among a select group of gaming and entertainment industry clients in Hong Kong.