Mahklouf's testimony followed Finance Minister Bill English, who used his time to announce the budget will be on May 16.
English said the budget will include measures to encourage domestic and foreign investment, saying that will help stoke jobs and wage growth.
In 2009, the Finance Minister tried to loosen barriers for overseas investors, though the government later backed down and ended up tightening restrictions in the face of growing opposition to foreign buyers of large tracts of farmland.
Both English and Mahklouf today talked down their ability to make any sustainable impact on lowering the exchange, which is effectively a pawn in the currency wars between larger economies.
"There's some discussion about whether you can get some exchange rate effect that will relieve pressures on those exporters, but we haven't seen a viable sustainable proposition to do that," English said. "If you could just make that choice well of course you would if it was costless, but it's not costless."
The currency recently traded at 84.07 US cents and 75.90 on the trade-weighted index.