There's a number of resources that don't integrate all too well with the rest of the mod, in terms of buildings and corporations. Examples:
Flax: Does not get a health bonus from granary, nor is it part of the three-field order.
Amber: A a kind of gem, it doesn't seem to tie into anything. I forget what else uses gems...
Sugar: Also doesn't seem to tie into anything.
Coffee: Again no guilds or buildings seem to affect this.
Flax: Does not get a health bonus from granary, nor is it part of the three-field order.
Amber: A a kind of gem, it doesn't seem to tie into anything. I forget what else uses gems...
Sugar: Also doesn't seem to tie into anything.
Coffee: Again no guilds or buildings seem to affect this.