A man accused of being the "ringleader" in a major drug trafficking operation in WA's Mid West and Pilbara regions now also faces money laundering charges after allegedly using a gym membership system to funnel drug money into a TAB account.

Donald Collard, 43, is the president of suspected organised crime group Naala Moort and faces 97 charges related to the sale of methamphetamine to an undercover WA Police operative, as well as allegedly using gym memberships as a front for money laundering.

The Midland Naala Moort clubhouse was raided by police in February.

Mr Collard was arrested in February after an eight-month WA Police investigation into the movement of drugs in the state's Mid West, with a warrant executed as a result of inquiries by Carnarvon detectives earlier this year.

Police said they found 112 grams of methamphetamine at the Naala Moort clubhouse in Midland and Mr Collard was arrested along with another man.