Singapore Telecommunications’ digital advertising company Amobee has said that it will buy content marketing startup Kontera as well as cross-channel advertising company Adconion. The deal will cost around $359 million, according to a statement on the news. Amobee already can handle programmatic advertising for digital and mobile ads. It can display three-dimensional mobile ads on Android and iOS devices, and it also offers an analytics tool. It claims to allow for the delivery of ads to 1.4 billion people on mobile devices by way of more than 1,000 ad networks and ad publishers.