The forestry industry's safety group agrees with a Coroner that more needs to be done to reduce the number of worker deaths.
Wallace Bain made the comments in a report into the death of Robert Epapara who was killed by a falling tree in 2013 - one of ten industry deaths that year.
Mr Bain said there had been a significant improvement in industry safety since then, but it was concerning there had already been four deaths this year.
Forestry Industry Safety Council national safety director Fiona Ewing said the latest deaths were a tragedy.
"It's a sign that the industry still has of work to do to improve its safety performace and we're aware of that," she said.
"And really what its done is to strengthen our resolve to work even harder to make forestry safe."
Ms Ewing said the major challenge would be in making sure safety standards were consistent across the forestry industry.