"Upon returning to the country... we will put the finishing touches in terms of the people who are going to work with the government," Humala told reporters.

"We don't think its the right moment [to announce the members of the cabinet] because that is going to create a lot of expectations, uncertainty, and with all of these social conflicts we believe we have to do it at a time when the country doesn't have these problems of social convulsion," he added.

The administration of President Alan Garcia recently enacted five laws including the revocation of a concession granted to Bear Creek Mining Corp. (BCEKF, BCM.V) in an attempt to meet the demands of anti-mining activists in southern Peru.

At least five protesters were killed when riot police fired tear gas and live ammunition to keep protesters from seizing the airport in the city of Juliaca.

The violence came just weeks before Garcia hands power to left-leaning nationalist Humala on July 28.

Humala called on the Garcia administration to resolve the mining conflict before he takes office.

"What we need is to ask the outgoing government to resolve this problem...that constitutionally corresponds to the current government," he said.

Peru produces 16% of the world's silver, 12% of its zinc, 9% of its gold and 7% of its copper, according to a report by Deutsche Bank.

The country's mineral wealth and free-market-friendly governments have attracted billions of dollars in investment by foreign mining companies like Grupo Mexico SAB (GMEXICO.MX) and Xstrata PLC (XTA.LN).

-By Ken Parks and Tania Mellado, Dow Jones Newswires;

54-11-4103-6740, ken.parks@dowjones.com