The country goes to the polls on Thursday.
Chamber President, Paula Taumoepeau said the economy was small and heavily reliant on remittances.
He said this meant it was important that people were trained to overseas standards but also others were trained to fill the gaps of those that leave.
"Any business that survives in Tonga for long, they have to train people all the time. They know that as soon as somebody's skilled enough and has an opportunity, they'll go. It is a fact of doing business in Tonga and most of the Pacific islands."
Mr Taumoepeau said the chamber would also be asking the new government to work on better tax compliance so there is a level playing field, and more capacity for fuel storage so that fuel and power costs can go down.
"Ensuring you get good compliance, everybody pays what they're meant to pay, then the drive for government to increase and make new taxes won't be there, if they were earning enough. I think that is one of the key issues that they've got to push."