The boss of a haulage firm used a secret communication system help move drugs and dirty money.
Thomas Maher, 39, used the encrypted messaging platform EncroChat, which police infiltrated earlier this year.
Maher, from Warrington, faces a lengthy sentence.
The National Crime Agency (NCA) monitored Maher’s movements over a seven-month period, during which he met with associates at hotels and elsewhere to organise the trafficking of cocaine from Holland to the UK and Ireland.
Encrochat messages showed that in April 2020 he orchestrated the collection and delivery of at least 21 kilos of cocaine from the Netherlands.
Associates reported back to Maher as the drugs were picked up, transported and arrived at their final destination in Ireland.
On April 2, there was an exchange at a garage in Lierop, the Netherlands. Cops say 11 kilos of cocaine was passed between two vehicles.
Two days later, the arrival of the drugs by way of Dunkirk to Dover and eventually Donabate, near Dublin was confirmed. Messages showed Maher had discussed splitting the profit with one of his group.
In another job, Maher made arrangements for 10 kilos of cocaine to be collected from an area near De Strubben in the Netherlands and again delivered to the outskirts of Dublin.
As well as drugs, Maher also helped to facilitate the movement of large sums of cash.
One charge relates to arranging for 305,000 Euros to be transported from Ireland to Holland on behalf of one of his associates, whom he charged a commission for his involvement.
In May, An Garda Síochána in Drogheda, Ireland seized a further 600,000 Euros in transit, arresting three people. Maher arranged for the movement of this cash.
Officers from the NCA arrested Maher on June 13 at his home in Warrington.
He was charged two days later and remanded in custody until a hearing at Liverpool Crown Court.
Maher, of Wiltshire Close, Warrington, will be sentenced on December 1 having admitted two charges of conspiracy to commit a crime abroad, namely importing Class A drugs; and two charges of conspiracy to commit a crime abroad, namely transferring criminal property - Euros.
NCA deputy director Craig Naylor said: "Maher was the logistics man for a number of crime groups and played a key role in an important criminal infrastructure.
"He was able to use his contacts and his business to facilitate large amounts of class A drugs to enter the UK and Ireland, with little thought to the damage they inflict on people and communities
"Going the other way he was able to ship large amounts of cash, after taking a cut himself, which no doubt was used to fund further criminal activity.
"Put simply, organised crime groups can’t function without people like Maher.
"Operation Venetic has halted thousands of criminal conspiracies and led to the arrests of hundreds of suspects. Thomas Maher was undoubtedly one of the most significant."
