Summary Commitments exceed $150 billion across five regions, says source The investment fund vehicle contains no government money New fund is separate from frozen asset talks, says source Fund only becomes operational after final US-Iran deal is signed DUBAI, June 17 (Reuters) - A $300 billion private fund designed to trigger investment into Iran is outlined in the U.S.-Iran framework agreement and more than half that sum has already been committed, a source with direct knowledge of the deal told Reuters. The fund's existence has been previously reported but Reuters is revealing for the first time that more than half...