The company operates six vessels fishing for tuna and mahimahi.
But co-owner Eddie Palu has told Matangi Tonga that the passage last year of the Tonga Exchange Control Act is a "kick in the butt" for the company.
Under the new legislation the government can force local business people to repatriate their foreign assets to Tonga, including forcing them to sell their property overseas.
This is a significant issue for Mr Palu and his wife who had been living in Australia before returning to Tonga and starting the business some years ago and now employ 75 people.
He said they have a house in Australia and that they didn't return to Tonga for business opportunities, but rather to look after his parents, and then they started the business.