London's High Court plans to hold a full hearing in September on efforts by Abu Dhabi-listed Dana Gas to restructure $700 million of its outstanding sukuk. Dana Gas declared the bonds invalid last month, saying they were no longer compliant with changing interpretations of the Sharia law. The judge upheld an interim High Court injunction blocking holders of the bonds from enforcing claims related to the securities against Dana Gas. However, he imposed restrictions on asset sales by Dana and its ability to raise more debt or pay dividends. The case has worried the Islamic finance industry as it has raised the prospect that other firms could justify not honouring obligations by claiming sharia-based financial standards had changed.