Samsung Electronics is poised to issue guidance for its quarterly profit, propelled by a surge in mobile earnings as a result of robust sales of its flagship Galaxy S7 smartphones. The South Korean giant will disclose its estimates for second-quarter earnings on Thursday.

The mobile division of the world's top maker of smartphones and memory chips was likely its top earner for the second straight quarter with a 4.3 trillion won profit. Samsung surprised many with better-than-expected first-quarter earnings, and issued guidance for a further pickup in April-June.

Samsung's smartphone business had been squeezed before the start of this year between Apple and Huawei Technologies. But the Galaxy S7 has provided a catalyst for the earnings rebound, likely putting the mobile business on track to record its first annual profit growth in three years.

As its smartphones thrive, Samsung's chip business probably saw quarterly profit sink to its lowest in nearly two years due to weak demand from makers of other smartphones and personal computers.

But signs of some price recovery for DRAM chips starting last month and Samsung's dominance in the premium solid-state disc drive market with its 3D NAND chip production technology suggest a pickup in coming months.