Pike River Coal boss Peter Whittall says he will mark the first anniversary of the first explosion at the West Coast mine privately in Wellington.
Twenty-nine men died in a series of explosions, starting on November 19.
Whittall was last week charged over their deaths when the Labour Department laid 25 charges in the Greymouth District Court against him and two other parties alleging health and safety failures.
He has vowed not to be "scape-goated" over the tragedy, saying he will fight the charges.
Today he said through his lawyers the anniversary would be a "difficult" time for many people, including Whittall.