By Sabela Ojea

Koninklijke DSM NV said Tuesday that its performance in the first nine months of 2021 was strong, marked by a positive momentum in the third quarter, as it managed the volatile global supply-chain scenario.

The Dutch nutrition-and-materials group said nine-month sales increased to 6.79 billion euros ($7.88 billion) from EUR6.03 billion a year earlier.

Sales in the third quarter increased to EUR2.30 billion from EUR1.96 billion a year earlier, marked by growth in both nutrition and materials business, it said.

Nine-month adjusted earnings before interest, taxes, depreciation and amortization rose 20% to EUR1.37 billion. Adjusted Ebitda rose 17% in the third quarter to EUR449 million, the company said.

DSM said that its full-year outlook remains unchanged. In September, the company guided for 2021 Ebitda growth in the mid-teens, compared with previous guidance where it was moving toward the mid-teens.

"Good end-user demand throughout the quarter continued the positive momentum of both our Nutrition and Materials businesses," co-Chief Executives Geraldine Matchett and Dimitri de Vreeze said.

Write to Sabela Ojea at sabela.ojea@wsj.com; @sabelaojeaguix