Orbital Corporation Limited (NYSE Amex: OBT) States that its Policy is Not to Comment on Unusual Market Activity

PERTH, Australia, Aug. 13, 2013 /PRNewswire/ -- Orbital Corporation Limited (NYSE Amex: OBT) ("Orbital" or the "Company") is an international developer of innovative technical solutions for a cleaner world.  In view of the unusual market activity in the Company's ADS on Monday,...