MONTERREY, Mexico (Reuters) – Mexico's FEMSA said yesterday it could use its $5.7 billion stake in Heineken, gained from the sale of its beer unit, to guarantee loans.

In a deal announced on Monday, Heineken is acquiring the beer business of Monterrey-based FEMSA , Mexico's number two brewer, boosting the Dutch company's presence in emerging markets.

The all-stock purchase will make FEMSA Heineken's second largest shareholder, with a 20 percent stake.

"The (Heineken) shares ... that will be FEMSA's property could perfectly well be used to get loans," FEMSA Chief Financial Officer Javier Astaburuaga told Reuters.

FEMSA says it could take advantage of relatively low debt when the deal is completed to pursue acquisitions for soft drinks bottling unit Coca-Cola FEMSA , and boost expansion of its already fast-growing OXXO convenience store chain.

Heineken Chief Executive Jean-Francois van Boxmeer said during a news conference in Monterrey that he was anxious to begin making his company's main brand in Mexico as soon as possible.

"It will be locally produced," he said, adding Heineken would step up sales of the beer, which is currently considered a niche brew in Mexico.

FEMSA shares rose 3.05 percent to 56.51 pesos after plunging more than 12 percent the previous session on disappointment over the deal price after brewer SABMiller pulled out of the race.