Tata Steel employs around 9,000 people at IJmuiden, about 25 km (15.5 miles) northwest of Amsterdam.
Labour Union FNV Steel said that Henrar had advocated to preserve the Dutch operations.
"The owners of Tata Steel in India are keen to downsize IJmuiden," said Roel Berghuis in a statement. "Henrar had been able to convince them time after time of the large importance of the subsidiary for Tata Steel and the Netherlands."
Tata Steel Europe began talks with workers in November over a "transformation programme" that would led to 3,000 job cuts, following a decision by European Union competition regulators to block a joint venture with Germany's Thyssenkrupp.
In April the company said it had delayed reorganisation plans until after July 1, due to the coronavirus pandemic.
Steelmaking operations around Europe are operating at reduced capacity due to a drop in demand from the auto industry.