By John Revill 

ZURICH-- Givaudan SA said Thursday it expected market conditions to remain tough in 2015 as the world's largest fragrance and flavor maker reported a 15% rise in full-year earnings driven by faster growth in developing countries.

Givaudan has benefited from increased demand for flavors for snacks and ready-to-eat dishes, and for fragrances for perfumes and cleaning products, particularly in emerging markets like Brazil.

The Geneva-based company, whose customers include Nestlé SA and Mondelez International Inc., said on Thursday that net profit rose to 563 million Swiss francs ($619 million) from 490 million francs a year earlier, broadly in line with analysts' expectations. Revenue edged higher to 4.40 billion francs from 4.37 billion francs a year earlier.

Adjusted for currency swings and acquisitions, revenue rose 7% in developing markets during the year, outpacing the 1.1% rise in Europe and North America.

"It was a good performance in a difficult environment," said Chief Executive Gilles Andrier, noting the gap between developing markets and developed markets had never been as wide.

There had been a "certain slowdown" in developing markets in Asia, he noted, but this was offset by growth in Latin America and the Middle East.

Globally there had been a slowdown in sales momentum during the fourth quarter, which the CEO attributed to easing of demand in Asia, especially for fragrances in China and some clients reducing their inventories towards the end of the year.

"We don't see any specific improvement in market conditions in 2015," Mr. Andrier said in an interview. "Europe is a tough environment; everyone talks about the U.S. coming back, but we don't see it yet."

Givaudan expects so-called organic revenue growth, stripping out the impact of currency fluctuations and acquisitions, of 4.5% to 5.5% a year, as long as the overall market grows between 2% and 3%.

Developing markets now make up 46% of the company's sales, up from 45% a year earlier, with Latin America the standout performer, increasing sales by 11%. In contrast, Givaudan struggled to eke out gains in North America, with revenue up just 0.6%, while in Europe, revenue rose 2.5%.

Givaudan's performance provides some insight into the health of the food-makers and perfume-makers that it supplies with fragrances. The company, which currently holds a roughly 25% share of the overall industry, makes perfumes such as Far Away Gold by Avon, and Polo Red for Men by Ralph Lauren.

Mr. Andrier said the recent surge in the Swiss franc versus the euro wouldn't affect the business. The franc has risen around 20% since the Swiss central bank scrapped a long-standing cap on the currency.

"We don't manage our company according to the exchange rate," Mr. Andrier said in an interview. "We are not going to increase salaries by 10% in Switzerland, but we will continue as normal, with no sudden steps, " he said, adding there were no job cuts planned in Switzerland because of the currency's rise which makes the Alpine country a more expensive location.

Raw materials would likely rise by 1%-2% in 2015, he added, following a 1% rise in 2014. Givaudan uses 14,000 different materials to make its products, which range from flavorings for yogurt and drinks to fragrances for soaps and washing powders.

Write to John Revill at john.revill@wsj.com

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