The US tuna company StarKist has agreed to plead guilty to one felony charge of price fixing for its role in a conspiracy to rig the price of canned tuna.
StarKist runs the cannery in American Samoa, which is the territory's biggest employer.
The US Justice Department said the company faced a fine of up to $US100 million for forcing shoppers to pay inflated prices from at least November 2011 through to December 2013.
The amount will be determined in a hearing by the US District Court in San Francisco.
StarKist's chief executive Andrew Choe said the company had cooperated with investigators and will accept responsibility.