Just checked your nation. It is only one trade.
Contact all of your partners and see who wants to spearhead the serach for a replacement. Probably best if you offer to do it yourself. Run a search for the needed resources and start contacting likely candidates. It shouldn't be hard to put someone in to a circle that will be complete when they join.
"All I was trying to do was get people to want to make their own new ring of light so that it is forever a name with meaning and substance ...." - BlackDove the Beneficent