That the wife of Australia's Prime Minister is Honorary President of the German-Australian Chamber of Industry and Commerce has no bearing on Prime Ministerial or Defence Department decision making for what is Australia's largest defence acquistion competition. Germany is one of the three competitors.
Large German company ThyssenKrupp Marine Systems (TKMS) is offering the Type 216 submarine to Australia. "ThyssenKrupp Marine Systems Australia Pty Ltd" is listed as a Member of the German-Australian Chamber of Industry and Commerce in its "Member Directory" (see under "T" or "Thyssen" http://australien.ahk.de/en/members/member-directory/?no_cache=1 ).
There is no evident concern from the other two competitors (Japan and France) in the multi $Billion Australia future submarine (Project SEA 1000) contest.
It is unclear whether office holders have similar roles in any Australian-France or Australian-Japanese Chambers of Commerce.
Perhaps TKMS has already won, or lost, anyway?
As at [April 22, 2016] the website of the German-Australian Chamber of Industry and Commerce "Board of Directors" listed major office holders http://australien.ahk.de/en/about-us/board-of-directors/ including :
of the German-Australian Chamber of Industry and Commerce