SEOUL—Samsung Electronics Co.'s surprisingly upbeat third-quarter guidance highlights how its components arm has become a key driver of earnings growth, but even that business faces headwinds as the global supply of chips appears set to outpace demand.

Research firm Gartner earlier this year cut its growth projection for global chip sales to 2.2% from 4%, citing a weaker outlook for major applications that drive the semiconductor market, including smartphones, and tablets.

For computer memory chips known as DRAM, of which Samsung is the No. 1 supplier, the research firm expects global revenue growth to slow to 3.8% this year, following a 32% rise in 2014.

Next year, DRAM revenue will likely decline 17% because of potential oversupply in the market. Both Samsung and rival SK Hynix Inc. plan to build new chip plants over the next several years.

"The strong momentum in the chip business will wane," said C.W. Chung, an analyst with Nomura in Seoul. "The mobile unit isn't out of the woods yet and unless that changes, it won't be easy for Samsung to get back on an overall growth track."

Samsung said it expects third-quarter operating profit to jump 80% for the three months ended Sept. 30 to about 7.3 trillion Korean won ($6.3 billion), its first year-over-year profit rise since the third quarter of 2013 when the company posted a 26% increase. The company said revenue likely rose 7.5% to 51 trillion won.

The company benefited from a stronger U.S. currency as it gets paid for components mostly in U.S. dollars. Samsung makes more in value terms when sales of chips and screens are translated back into Korean won. The U.S. dollar rose 12% against the Korean won from a year earlier at the end of September.

Samsung's mobile division, which had powered the company's earnings growth for much of 2012 and 2013, likely performed better in the third quarter. The company streamlined its smartphone lineup to cut costs, while it introduced its flagship models faster to combat stiff competition. But as growth in global demand for smartphones cools amid saturated markets, analysts say the mobile unit's quarterly profit will likely come in at less than 2.5 trillion won, which is about half the level seen during its peak years. Samsung didn't provide third-quarter guidance for its mobile unit.

Samsung launched a pair of new smartphone models --the Galaxy Note 5 and the Galaxy S6 Edge + -- in August, advancing the timing of their launch by several weeks to beat Apple Inc. to the market. The next flagship Galaxy S smartphone model is also expected to be released earlier than usual, as Samsung struggles to hold on to its market share.

In the second quarter, Samsung shipped 74.1 million smartphones globally, maintaining its top market share of 20%, according to data tracker Counterpoint Research. But it was the only company among the top five vendors whose market share slipped compared with the year-earlier period. Samsung had accounted for an estimated 24.2% share of the global smartphone market a year earlier.

Margins on the sale of mobile phones likely will stay under pressure as Samsung has been launching discounts and promotions to lure consumers. Analysts expect profit margin from the mobile business to be 8% to 9%, compared with about 30% for its chip business.

In the U.S., new Samsung phones are sold with a rebate of as much as $120 through select carriers, with an extra benefit for customers switching from iPhones. SK Telecom, South Korea's largest carrier, on Wednesday, announced price cuts on some of Samsung's main smartphone models, including the Galaxy S6. Analysts say price cuts are inevitable for Samsung given stiff competition.

Samsung "will have to release a model that other makers can't make," said Yoo Jong-woo, an analyst with Korea Investment & Securities in Seoul. "High-end phones featuring flexible displays—like the ones that are foldable—will be the only way Samsung could seek an increase in its market share in the premium market."

Samsung's shares got a boost Wednesday following its upbeat guidance and expectations for a stock buyback later this year.

A spokesman for Samsung declined to comment on a potential stock buyback. In November last year, Samsung disclosed plans to repurchase $2 billion worth of shares to boost shareholder returns, its first such move in seven years. Samsung's shares are still down about 6% year-to-date.

Write to Min-Jeong Lee at min-jeong.lee@wsj.com

 

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(END) Dow Jones Newswires

October 07, 2015 08:35 ET (12:35 GMT)

Copyright (c) 2015 Dow Jones & Company, Inc.
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