SEOUL, South Korea (AP) — 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.

"It has been tough to keep up with demand," Shin told reporters.

Samsun...