SEOUL, South Korea — Samsung Electronics Co., the world’s top mobile phone maker, said Monday it expects global sales of the latest Galaxy smartphone to surpass 10 million in July even as it struggles to keep up with demand because of component shortages.

Shin Jong-kyun, president of Samsung’s mobile communications business, said the Galaxy S III will hit the 10-million milestone within two months of its launch.

“We’re getting far better feedback on the model overseas than what we experienced with the Galaxy S II,” Shin said.

“It has been tough to keep up with demand,” he added.

The Galaxy S III, a rival to Apple Inc.’s iPhone, will probably sell faster than its predecessors, according to Shin. The model goes on sale today in South Korea after being introduced in the U.S. June 21, and is the latest in the Galaxy series that helped Samsung regain leadership in the $219 billion smartphone market from Apple in the first quarter.

Samsung’s failure to procure sufficient mobile components for its latest smartphone has stoked concerns that its second-quarter smartphone sales could be much lower than expected. Shin said the company expects to resolve the supply issues with mobile components sometime in the next week.

“Despite the tough economic situation in Europe and problems with supplying components for the Galaxy S III, the second-quarter earnings will be better than the first quarter,” he said.

Samsung began sales of the Galaxy S III in Europe on May 29 and released the smartphone through all major mobile U.S. carriers last week. In its home market, the company started sales of the latest iteration of Galaxy earlier Monday.

Separately, Samsung’s mobile president said it is still investigating the explosion of a Galaxy S III in Ireland. He said the battery wasn’t the cause.

Samsung’s sales estimate for the S III reflects robust demand from mobile operators.

Unlike Apple Inc., Samsung does not disclose sales figures to consumers.

The South Korean company said the S III will be released by around 300 mobile carriers in 147 countries by the end of July, aiming for an early start before rival Apple announces a new version of the iPhone in the third quarter.

The third version of the Galaxy S features a bigger screen — measured 4.8-inch diagonally — but is thinner and lighter than its predecessors and the iPhone 4S.

Samsung packed the high-end smartphone with a legion of new features including eye-recognition technology that keeps the screen from dimming. It also has voice command functions that let users schedule an alarm or adjust volume by speaking to their device.

Its near-field communication technology enables sharing of data heavy multimedia content among Galaxy S III users quickly. But activating the function — called S Beam — takes multiple steps.

Because Samsung customizes its flagship smartphone based on Google’s Android operating system, some of Samsung’s features overlap with those made by Google.

Samsung overtook Nokia as the world’s biggest mobile-phone maker in 2011 and competes with Apple for the top smartphone maker position. It aims to double its smartphone sales this year to nearly 200 million phones.

The electronics maker sold more than 50 million units of the previous two Galaxy S models globally in the past two years.

The company sold 93.5 million handsets in the first quarter, 36 percent more than a year earlier, Strategy Analytics said April 27. Nokia shipped 82.7 million, down 24 percent, and Apple sold 35.1 million units, an 89 percent gain from 2011.

Samsung sold 44.5 million smartphones in the three months ended in March, according to the researcher’s data.

(The AP and Bloomberg contributed to this report.)