A workshop on selecting a management alternative for the underground arsenic trioxide dust at the Giant Mine was held in Yellowknife NT on May 26 and 27, 2003. The Giant Mine Remediation Project Team of the Department of Indian Affairs and Northern Development (DIAND) organized the workshop. This was the fifth stakeholder workshop focusing on the management alternatives. The first workshop was held in 1997; the second in June 1999 (focusing specifically on the nature of the arsenic trioxide problem, potential options, and actions that should be considered to appropriately manage the material); the third in July 2001 (to present the Phase I alternatives and research results); and the fourth in January 2003 (focusing on the alternatives for future management of the underground arsenic trioxide dust at the Giant Mine). The May 26-27, 2003 workshop is part of the continuing commitment by DIAND to address the future management of arsenic trioxide dust currently stored underground at Giant Mine. This session brought people together to provide additional public and stakeholder perspectives on moving forward with the selection of a management approach to be submitted by DIAND to the regulatory boards. It built upon the two-day workshop held in January 2003, which presented the findings of the Technical Advisor team and the report of the Independent Peer Review Panel, and on the eighteen public meetings undertaken by DIAND since the January 2003 workshop. The workshop was widely advertised in the local newspaper and on the radio. A range of stakeholders participated in the workshop, including over 20 representatives from: