Joya Williams, 42, had faced up to 10 years in prison on the single conspiracy charge in a failed scheme to sell the materials to rival Pepsi for at least $1.5 million.
She was convicted Feb. 2 following a jury trial in U.S. District Court in Atlanta, where Coca-Cola Co. is based.
"This is the kind of offense that cannot be tolerated in our society," U.S. District Judge J. Owen Forrester said in imposing the sentence.