Aug 21 (Reuters) - PSC Insurance Group Ltd PSI.AX
* PSC Insurance Group Ltd - PSC and HydroChem announce agreement to combine companies
* PSC Insurance Group Ltd - combined company will be led by executives from both organizations
* PSC Insurance Group Ltd - Brad Clark, CEO of PSC, will serve as CEO and President of combined company , and will also join board
* PSC Insurance Group Ltd - signed a purchase agreement whereby PSC will acquire all of outstanding ownership interests of Aquilex