Quebec produces up to 80 percent of the world's maple syrup.
Authorities never disclosed the exact amount of maple syrup stolen in August. But the warehouse contained Quebec's maple syrup reserves, which were supposed to hold 10 million pounds valued at $30 million.
Those arrested are scheduled to face charges Tuesday of theft, conspiracy, fraud and trafficking in stolen goods.
Police also have seized vehicles suspected of being used in the illicit trafficking of the syrup.