Two investment groups started a bidding war for one of Mexico's largest airlines, Aeromexico.
Mexico's deposit insurance agency IPAB, which owns a stake in Consorcio Aeromexico SAB, said in a statement it would accept Alberto Saba Raffoul and Moises Saba Masri's bid of 1.84 billion pesos (US$170 million; 120 million EUR), or 1.86 pesos (US$.17; .12 EUR) a share, for control of the carrier.
That prompted an investment group that includes Citigroup Inc.'s Banamex unit to raise its bid to 1.85 billion pesos (US$171 million; 121 million EUR), or 1.87 pesos (US$.17; .12 EUR) a share, from 1.74 billion.
The Sabas then upped their own offer to 1.89 billion pesos (US$174 million; 123 million EUR), or 1.90 pesos (US$.18; .13 EUR) a share.
In a filing with the Mexican Stock Exchange, Banamex said it would not raise its share offer again. However, it tried to sweeten the deal by offering shareholders cash in lieu of tradable warrants.
The group said it will pay shareholders who opt not to take the warrants 0.3822 pesos (US$.04; .03 EUR) a share on top of the cash offer of 1.87 pesos a share.
In a filing with the Mexican Stock Exchange on Monday, the group said the warrants are worth US$42 million (30 million EUR) to US$53 million (37 million EUR) based on an independent valuation by N.M. Rothschild & Sons.
The group also has promised to invest US$240 million (170 million EUR) in the carrier.
The Saba family has said it plans a US$255 million (180 million EUR) investment.
Aeromexico and Mexico's other major carrier, Mexicana, were part of the government-owned holding company Cintra SA, which put the two carriers up for sale in 2005. The two airlines dominated domestic traffic until a number of low-cost carriers were launched in recent years, boosting competition.
The government sold Mexicana to hotel group Grupo Posadas SA, but rejected previous bids for Aeromexico as too low. The government currently owns 62 percent of Aeromexico.
Mexicana made a 2.17 billion-peso (US$200 million; 141 million EUR) bid for Aeromexico, but the commission blocked the offer last Thursday. The airline has appealed.
Aeromexico's local A shares were up 13 percent at 2.14 pesos at about 3:30 p.m. EDT (1800 GMT).