United Group, a telecoms and media operator, completed the acquisition of a 54% stake in Optima Telekom, an independent service provider of land line telephony services in Croatia, from Hrvatski Telekom, a telecommunications service provider, and Zagrebacka Banka, a bank in Croatia, for $100m. “This agreement is a step further in our plan to transform Telemach Croatia into a fully converged telecom operation offering the full range of telco services – including TV – on our own infrastructure,” Adrian Ježina, Telemach Croatia CEO.