VGI Global Media Plc (VGI), a top provider of online-to-offline (O2O) solutions across advertising, payment and logistics platforms, has paid Bt4.6 billion for an 18.6 per cent stake in Plan B Media Plc, Thailand’s leading out-of-home (OOH) advertising media provider with more than 70 per cent of the country’s OOH market, VGI's chief executive officer Nelson Leung said on Wednesday.