The ownership structure of small mobile phone operator 4ka includes German private bank Hauck & Aufhäuser. It remains to be seen whose stake the bank manages, as the stake is under the disclosure limit in the Public Partners’ Registry legislation. Among 4ka’s shareholders is also the investment group Wood & Company; again, its stake is undisclosed. Chinese firm ZTE, which supplied technology to 4ka, has no ownership stake, according to journalist Adam Valček. According to earlier media reports, Czech investment fund Avant has a 30% stake in 4ka. Its majority owner, Swan, is merging with Benestra (Sandberg Capital of Martin Fedor).