* Lottomatica’s current concession runs out May 31
* Sisal drops out - AAMS source; company to make statement
* Lottomatica shares up 8.5 percent
(Adds details, background, shares) MILAN, May 10 (Reuters) - A group led by Lottomatica SpA LTO.MI, one of the world’s largest lottery operators, made the only bid to operate Italy’s 9 billion euro ($12 billion) scratchcard game, a source at Italian gaming regulator AAMS said on Monday.
Smaller rival Sisal SpA, an Italian private equity-owned gaming group which had expressed its interest for the scratchcard concession, did not file a bid, the source said.
“Only Lottomatica has presented an offer,” the source told Reuters asking not to be named.
Lottomatica declined to comment. Sisal said it would issue a statement, without elaborating.
At 1515 GMT Lottomatica shares were up 8.57 percent at 13.56 euros. Milan's blue chip index FTSE MIB .FTMIB was up 10.3 percent.
Lottomatica holds the current scratchcard concession which runs to May 31.
The new concession will be for nine years and requires an upfront 800 million euro fee to be paid to the government.
Lottomatica’s consortium includes U.S.-based Scientific Games (SGMS.O) as well as the Italian federation of tobacconists. (Writing by Nigel Tutt; Editing by David Holmes) ($1=.7453 Euro)