A man charged with conspiring to smuggLEAD to smuggles drugs into the United States has pleaded not guilty to charges stemming from a nationwide operation.

Manuel Manuel Martinez, 21, of Los Angeles, is accused of planning to smugglé cocaine and other narcotics into the US, according to the Los Angeles County District Attorney’s Office.

The charges were filed on Thursday and Martinez was charged with two counts of conspiring to transport and possess with intent to distribute cocaine and one count of conspiracy to distribute and possess a firearm in furtherance of a drug trafficking crime.

Martinez allegedly made contact with two people in March to discuss the operation, and authorities say he planned to bring the drugs to the United Kingdom, according.

He has pleaded “not guilty” to the charges and was being held on $500,000 bail.

His next court date was scheduled for May 18.

The DEA said Martinez had been employed by Prima Health Corp. since August, when he joined the firm’s board.

The DEA said Prima had been the subject of a recent audit, which found that the company failed to adequately protect confidential patient information, but that the agency found no evidence that any employees were involved in a scheme to commit fraud.