Negative interest rates and the populist uprising that spurred the UK to vote for Brexit and Americans to elect Trump has helped reignite a rush into physical safe haven assets like gold and silver, which however has led to a shortage of safe venues where to store the precious metals (unlike bitcoin, gold actually has a physical dimension). And now companies that operate storage facilities for precious metals and other valuables are ramping up their capacity to help cash in on the soaring demand for storage facilities.