translate English to French: In the Netherlands, offshore workers are essentially employed by a company that is not covered by any collective agreement, while the collective agreements that exist in Denmark and Spain apply to a large proportion of workers since the rate of coverage by collective agreements is fairly high in those two countries (more than 80%).
Le taux de couverture par convention collective dans le secteur des activités offshore est très variable. Ainsi, il semble qu'il n'existe pas de convention collective en Pologne et en Irlande.