Fluorsid is a chemical company based in Cagliari and owned by the Giulini family.
"The Americans were trying to lengthen the negotiations and needed another 90 days," Cellino said to Sky Italia.
"I have accepted to sell the club to Tommaso Giulini, who was up to last year a member of Inter Milan's administration council.
"It should all be completed very soon. I wish him all the best.
"Now my heart is with Leeds and all my work and energy is for Leeds."
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