Sophie Langenbaker appeared in Tamworth Local Court on Monday on two charges, flanked by her solicitor.

Langenbaker, 21, will deny charges of supplying less than an indictable quantity of a prohibited drug, and one count of participating in a criminal group and contributing to criminal activity.

On Monday, she formally pleaded not guilty to both charges.

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Magistrate Julie Soars ordered police to compile a brief of evidence and serve it on the defence solicitor within four weeks. The case was adjourned to next month.

Langenbaker, who has been on bail since her arrest, had her bail continued until her next appearance.

She's accused of being involved in an alleged drug ring that was supplying MDMA, or ecstasy as it's commonly known, in Tamworth and further afield in the New England and the Hunter.

Langenbaker first fronted court in January but did not enter pleas. She was arrested by police from Strike Force Heyward in December.

Police said the strike force was launched to target the party drug scene in and around licensed premises in Tamworth.

On Monday, co-accused Beau Dean Hoars had his charges listed for mention in Muswellbrook Local Court.

Hoars is yet to enter pleas to charges of participating in a criminal group and contributing to criminal activity; as well as being an owner or occupier knowingly allowing a house to be used as a drug premises.

Hoars was arrested on December 5 during a vehicle stop by police in Muswellbrook with alleged ringleader and co-accused, Corey Cutmore.

On Monday, magistrate Hugh Donnelly adjourned the case back to Tamworth for mention later this month.

Hoars remains on conditional bail.

Twelve people have been arrested by police from Strike Force Heyward. Together the 12 are facing a combined 64 offences, including ongoing supply and large commercial supply of MDMA, or ecstasy.

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