Tevez, 25, has hinted he will leave as he has not been offered a permanent deal but Ferguson said talks had begun.
"He knows I want him to stay. We spoke today and chief executive David Gill has had meetings with him," added Ferguson.
"We have given him an offer and we hope he accepts. The problem is we are not negotiating with a football club."
Joorabchian, who owns the economic rights to Tevez, claimed United had chosen not to take up an option to buy the striker when his two-year loan deal expires in the summer. A spokesman for Joorabchian said: "In 2007 Manchester United agreed a two-year loan deal for Carlos Tevez and at the same time agreed the terms that would make the transfer permanent.
"They have not taken up that option."
Last weekend, Tevez told newspapers he expected to be leaving Old Trafford in the summer because he had not yet received the offer of a contract and Joorabchian backed up the player's comments.
"He's been disappointed at the way he's been treated - he shouldn't be in this situation," stated Joorabchian.
"He did enough to warrant a contract last year but they decided not to do that and to go for other players and in January he felt he might be offered a contract and he wasn't, so now I think he feels not as good as when he first joined.
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