Two equality bodies are meeting to discuss how best to provide support for employees in Northern Ireland dealing with mental health issues.
Over 160 employers here and more than 60 union workplace reps are due to attend the conference.
"Mental ill health is the leading reason for absence from work in Northern Ireland," said Billy Gamble, Equality Commission NI.
The Mental Health Foundation has found that mental ill health accounts for almost one out of every three sick days in Northern Ireland.
The charity also discovered that almost 40% of long-term sickness leave is due to employees dealing with mental health issues.
The Equality Commission and Unite the Union NI are working to encourage companies here to commit to their Mental Health Charter.
Jackie Pollock, Regional Secretary for Unite the Union said: "Mental health is one of the most pressing challenges faced by our union and by workers.
"Many disciplinary cases involve underlying mental health issues and our workplace reps are often the first to be approached by employees suffering from mental health difficulties.
"We know that a partnership approach to this issue is necessary."