A man from Sully has been charged in connection with an organised crime gang producing class B drugs.
20 people were arrested in a series of raids across South Wales and the West Country.
Eleven men have since been charged with conspiracy to produce cannabis, including 27 year-old Beqir Dedej.
Two of the men are also accused of possessing criminal property and offences relating to the Identity Document Act.
More than sixty officers seized over 140 kilos of the drug stored in wholesale vaccum packed bags - along with around £350,000 in cash and ten vehicles - when they searched seven premises.
The joint operation involved officers from the South Wales, Gwent and Dyfed Powys police forces, along with the regional organised crime unit Tarian and immigration enforcement officers. Another warrant was carried out in Yeovil by Avon and Somerset Police.

According to a Tarian officer, Operation Altar had led to the closure of twelve cannabis grows across South Wales.
Detective Inspector Vinnie Easton said: "The threat posed by organised crime groups such as this one cannot be understated. They prey on the vulnerable within our communities, utilise violence and intimidation tactics, and do not care about the harm they bring. Their only concern is profit."
"Operation Altar continues, and I encourage anyone who has information about suspected cannabis cultivation or drug activity to report anonymously to 101 or Crimestoppers."
Two men of no fixed abode will be sentenced at a later date after pleading guilty in court to producing controlled class B drugs, namely cannabis.
Richard Johnson, the Home Office’s immigration compliance enforcement lead for Wales and the West of England, added: "The way people are treated when they are employed illegally is inhumane and abhorrent; a far cry from the lies they are sold by the gangs who facilitate their journeys into the UK."
“We know that employment is one of the biggest pull factors for people coming here, and it is important for them to understand that they can find themselves trapped in unsafe and insecure conditions, facing exploitation and even modern-day slavery."
“We’re pleased to have contributed to the shutting down of this exploitative and illegal operation.”

Post Office Seeks New Operator in Dinas Powys as Village Faces Loss of Its Last Branch
Gardening team praised after helping police clear fallen tree near St Brides Major
Specsavers calls on children in Barry to design Wales Deaf Rugby World Cup shirts
Whitmore High Named One of UK’s Best Workplaces for Development
Steel Signing Marks Major Milestone in St Richard Gwyn School Redevelopment
Two Rescues in Record Heat as Volunteer Teams Respond to Afternoon Emergencies
Police find evidence of a large-scale cannabis cultivation at Riverside Place property fire
Network Rail confirm closure of Brookside level crossing in Dinas Powys
Police given powers to ask people to leave Comeston Lakes Country Park
Planned children’s role play centre could be given the go-ahead by Vale Council
Marie Curie Garden Fayre deemed huge success
Council seeks views on Future of Colcot Sports Centre and Buttrills Playing Fields
First Minister quizzed on further devolution, budget decisions, and misinformation in FMQs
Extreme heat leads to changes to services and closures
Severe Heat Warning Set to Disrupt Rail Travel Across South Wales This Week
Communities asked to support older people across Wales during severe heat warning
Caribbean Community Wales Brings Wales‑Wide Launch to Barry This Weekend
Community Award winner calls for sanitary bins in men’s toilets after living with prostate‑cancer‑related incontinence
Cardiff Airport Backs Holiday Safety Campaign Honouring Rhoose Teenager Tom Channon