Police found £1 million worth of drugs and a £250,000 stash of cash in a series of raids across South Yorkshire.
The raids marked the end of a covert operation into the supply of heroin, cocaine and crack cocaine in South and West Yorkshire and London.
Officers found 14kg of class A drugs raiding properties in Sheffield Road and St Lawrence Road, Tinsley; Victoria Quays in Sheffield City Centre, Callow Drive and Plowright Way in Gleadless and Fox Lane Court, Frechville.
They also searched a home in East Bawtry Road, Rotherham.
Six men were arrested and four later charged, before appearing at Rotherham Magistrates’ Court yesterday, where they were remanded.
Thenveer Hussain, aged 31, of Sheffield Road, Tinsley, has been charged with nine offences of conspiracy to supply class A drugs and conspiracy to commit money laundering.
Ricky Kitchen, 22, of Callow Drive, Gleadless, and Liam Kitchen, 23, of Plowright Way, Gleadless, have both been charged with five offences of conspiracy to supply class A drugs, and conspiracy to commit money laundering.
Raja Khan, 28, of St Lawrence Road, Tinsley, has been charged with conspiracy to commit money laundering.
Two men, aged 28 and 33, who were arrested on suspicion of conspiracy to commit money laundering have been bailed.
Three further arrests were made in Brighouse and Huddersfield.
Temporary Detective Inspector Paul Wilson said: “The number of arrests made and charges brought over the last two days is testament to the dedication and determination of a small group of officers who have worked solely on this covert investigation since the summer last year.
“The investigation was designed to target the supply and distribution of heroin, cocaine and crack cocaine between organised criminal gangs and is still ongoing.”