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.”

£200,000 Secured for Next Phase of Barry RFC Sports & Community Hub Redevelopment
Walk‑In Hepatitis A Vaccination Clinics Open in Barry as Health Board Expands Outbreak Response
Over 27.4% of Vale GCSE students acheive A or A* Grade
Rhoose Community Library Marks Ten Years as Volunteer‑Run Community Hub
Calls to build a new Lido re-surface with resident saying the town "is in dire need of"
Barry Man’s 190‑Mile Charity Walk Reaches Day Two as He Heads Home to the Town That Changed His Life
Hepatitis A Vaccination Programme Launched for Young Children in Barry Amid Ongoing Local Cases
Barry Councillor Urges Local Chapels to Help Update Wales‑Wide Heritage Project
Dispersal Order issued at Cosmeston as council warns of ‘extremely dangerous’ behaviour
Three Rescues in 24 Hours as RNLI Barry Dock Urges Caution Around Sully Island
Police Investigate ATM Theft in Cowbridge After Pensioner Targeted
Break‑In at St Athan Community Centre Forces Volunteers to Divert Funds from Upcoming Events
Vale Students Celebrate Strong A and AS Level Results
Llantwit Major School Celebrates Record-Breaking A Level Success
Senedd recess: What have the Welsh political parties been up to so far?
Vueling withdraws winter flights to Aicante this winter
Playground in Barry forced to close after fire damages equipment
Campaigners Take Fight for Fairer Pathways in Welsh Women’s Football to Parliament
Vale Councillor Gwyn John Launches His First Novel at Llantwit Major Book Signing
Pink poppy display commences with celebration of life