The Citxw Nlaka’pamux Assembly (CNA) was formed for the purpose of managing and administering the Eight Participating Bands’ commitments in the Participation Agreement with Teck Highland Valley Copper Partnership (THVCP) and Economic Community Development Agreement (ECDA) with the province of British Columbia. The CNA is also responsible for assisting the Participating Bands in implementing the Participation Agreement and ECDA.  THVCP and the Participating Bands have worked towards building positive relationships, resulting in the creation of a protocol agreement in 2009, followed by interim agreements in 2010 and 2011, and then concluded to the final Participation Agreement which was signed June 30, 2013 and is a long-term definitive commitment between the Participating Bands and THVCP with respect to the Mine and mining activities in the area surrounding the Mine. 

The purpose of the ECDA between the Province of British Columbia and the Participating Bands is in the interest of facilitating and developing a thriving, competitive, safe and environmentally responsible mineral resource sector, while addressing the cultural and societal needs of the individual and collective Participating Bands through established priorities.