SEOUL, South Korea -- Hyundai Motor Co. suffered a drop in quarterly earnings and is forecasting weak sales growth this year after falling behind competitors in factory expansions.

South Korea's largest automaker said Thursday its September-December net income dropped 22 per cent from a year earlier to 1.66 trillion won ($1.53 billion).

The median expectation of analysts surveyed by financial data provider FactSet was a 2 trillion won profit. Sales rose 8 per cent to 23.6 trillion won.

Hyundai blamed unfavourable foreign exchange rates for the lower earnings. Even though the South Korean won fell against the U.S. dollar in favour of Hyundai, it rose against the Russian ruble and the currencies of other emerging market nations.

The automaker also had to give more incentives to consumers in the U.S. to weather competition and to boost sales of older models, such as the Elantra.

For this year, Hyundai forecast sales will grow just 1.8 per cent to 5.05 million vehicles, the weakest growth in recent years. The company expects to begin production at a new factory in China next year, but until then its existing factories are operating at full capacity, leaving no room to boost sales significantly.

"It is true that there are concerns about losing market share as the overall industry is expected to grow 3.9 per cent," Lee Won Hee, chief financial officer at Hyundai Motor, said at an earnings conference call. "We will try to surpass our 5.05 million goals."

Hyundai will try to improve productivity at existing facilities, which helped the company to exceed its sales target in 2014.

Hyundai Motor Group, the world's fifth-largest automaker that comprises Hyundai and Kia Motors Corp., earlier this month forecast the weakest sales growth in more than a decade. It said Hyundai and Kia sales combined would grow 2.5 per cent this year.

The group, however, announced a record investment plan totalling 81 trillion won ($73.6 billion) over the next four years on factories, research and a new headquarters.

In another sign that Hyundai is responding to the South Korean government's call for big companies to spend more on investment and returns to investors, the company said it will increase its annual dividend by 54 per cent from the previous year. Paying 3,000 won per share, Hyundai will spend a total 817 billion won on dividends, it said, pending shareholders' approval.

In a bid to stimulate consumption, South Korea's government has pressured the big companies that dominate South Korea's economy to stop hoarding cash and instead spend it on wages, investment and dividends.