July 30 (Reuters) - mBank SA
* Polish mBank's capital position is resilient to any solution to the problem of under-water Swiss franc-denominated mortgages, its chief executive said on Thursday.
* mBank, a unit of Germany's Commerzbank, is among lenders with a large portfolio of Swiss franc mortgages. The loans became more expensive to service when the franc surged in value at the start of the year. Further company coverage: (Reporting by Marcin Goclowski; Writing by Adrian Krajewski; Editing by Marcin Goettig)