Cellnex, the largest independent European towerco, continues to diversify its business with the acquisition of Herbert In-Building Wireless to boost its indoor and neutral host activities. The firm is looking for ways to grow that are less dependent on acquisitions than its strategy of recent years – as it becomes more and more powerful as a tower and site owner, so its purchases are likely to be scrutinized more carefully by competition regulators. However, it is expected to complete its controversial purchase of CK Hutchison’s UK sites within weeks, after approval was finally given by the UK competition authority in March, subject to divesting 1,000 of the 6,000-strong portfolio where there wre overkaps with Cellnex locations. The UK deal will…