"COVID is still affecting us. We see certain volatilities arising and we see the impact of COVID somehow decreasing," he told Reuters after releasing annual results.

"So our factories and ...execution is almost close to pre-COVID levels."

Nordex earlier said it expects 2021 sales to rise to 4.7-5.2 billion euros ($5.6-$6.2 billion) from 4.65 billion in 2020, while its core profit (EBITDA) margin improves to 4.0%-5.5% from 2.0%.

(Reporting by Christoph Steitz; editing by Jason Neely)