Simplify the following text for a Grade 9 native English-speaking person.
Original: Abdul Aziz Al Ghurair ( born 1 July 1954 ) of the United Arab Emirates , is the Chief Executive Officer of the publicly traded Mashreq Bank , the family 's most valuable holding , worth an estimated $ 8 billion .
Simplified: Abdul Aziz Al Ghurair ( 1954 ) from the United Arab Emirates is the chief executive of the publicly traded MashreqBank . His family 's most valuable holding is worth an estimated $ 8 billion .