More Videos:

Citigroup Burned by Mexico Fraud

Tickers in this article: C

NEW YORK ( TheStreet) -- Citigroup on Friday said it was restating its 2013 earnings after its Mexican banking subsidiary discovered fraud committed by a commercial borrower.

Citigroup's Mexican subsidiar,  Banco Nacional de Mexico , commonly called Banamex, lent $585 million to Oceanografia S.A. de C.V. ("OSA"), a Mexican oil services company, with the loans secured by accounts receivable, as is typical for many commercial and industrial loans.  Banamex also had $33 million in loans made directly to OSA or letters of credit  issued on behalf of OSA.

OSA had been a "key supplier" to Petroleos Mexicanos, or Pemex,  Mexico's state-owned oil company. But in February, OSA was suspended from new Pemex contracts.    After Citigroup and Pemex reviewed OSA's accounts receivable securing the loans, "Pemex asserted that a significant portion of the accounts receivables recorded by Banamex in connection with the Pemex accounts receivable financing program were fraudulent and that the valid receivables were substantially less than the $585 million referenced above."

Citigroup estimates that only $185 million of the accounts receivable pledged by OSA are legitimate.  The $400 shortfall has been charged to operating expenses within the company's Transaction Services unit for the fourth quarter, "with an offset to compensation expense of approximately $40 million associated with the Banamex variable compensation plan."

Citi restated its 2013 earnings, lowering after-tax net income by $235 million to $13.673 billion, and lowering earnings-per-share by 7 cents to $4.35.  The bank said it believed the fraud was "isolated," and that it was continuing a review to determine whether the remaining $33 million credit or $185 million in account receivables collateral due from Pemex was impaired.

Commenting in a press release, Citigroup CEO Michael Corbat said the company was "responding forcefully over the past week by assessing the overall exposure to Citi, coordinating with law enforcement, pursuing recovery of the misappropriated funds, and seeking accountability for anyone involved."  The company is going through a "rapid review" of similar accounts-receivable collateral arrangements.

Corbat went on to say that Banamex was working with Pemex and Mexico's attorney general, "to initiate criminal actions in connection with this matter that, in addition to imposing just penalties on the responsible parties, may allow us to recover damages. "

The CEO struck a bitter tone: "I can assure you there will be accountability for those who perpetrated this despicable crime and any employee who enabled it, either through lax supervision, circumvention of our controls, or violating our Code of Conduct. All will be held equally responsible and we will make sure that the punishment sends a crystal clear message about the consequences of such actions." 

Citi's shares were down 0.8% in premarket trading, to $48.29.

This chart shows the stock's performance against the KBW Bank Index and the S&P 500 since the end of 2011: