Datanews.be reports that WiMAX operator Clearwire has sold its Belgian subsidiary to TechMax, a local telecoms company owned by businessman Max Heilbron. TechMax has acquired approximately 15,000 broadband subscribers, operating concessions, the WiMAX infrastructure and around 30 employees; no financial details have been disclosed. According to TeleGeography’s GlobalComms Database, in a bid to enhance competition in the high speed internet sector, the telecoms regulator BIPT awarded Clearwire Belgium and Mac Telecom concessions in the 3.5GHz frequency band in April 2004. Both operators began offering services using pre-WiMAX technology, and Clearwire at least was expected to deploy full WiMAX technology to offer high speed wireless internet services. In April 2008 it was announced that Clearwire had acquired Mac Telecom, having already held a 42% stake in the ISP. However, in June 2009 it was reported that Clearwire was halting investments in its Belgian broadband operations, after hitting a wall regarding permission for new antennas.