This enterprise required substantial capital , which Bolts sought in the Austrian Netherlands ( Belgium ) .
Bolts brought in the Antwerp banker , Charles Proli , and Bolts ' associates , the bankers I.C.I.
This enterprise required substantial capital , which Bolts sought in the Austrian Netherlands ( Belgium ) , and he brought in the Antwerp banker , Charles Proli , and his associates , the bankers I.C.I.