The Damdamian envoy is let in first.
"Greetings, Grand Duke of Tven! I bring bad news and good news to you this day. The bad news are that our glassworks are suffering a decline and therefore we need to cease sending you our glasswares for the time being. The good news is that the Senate, taking into account the people's praise of your gemstones and their quality, has decided to uphold the trade route and is inquriing wherever you would agree to exchange gemstones for some other good?"
"What goods can you offer?" The trade advisor perks up.
"The Republic has plenty of salt to offer, to preserve your foods and to give them a sharper taste. We also can offer curious minerals, like cinnabar and saltpetre, which can be used in many processes, for dyes like cinnabar, or to preserve meat with saltpetre. We also offer the expensive leafworm cloth, delicate, translucent and luxurious fiber that has adorned many a Damdamian noblewomen and noblemen thorough decades." Courtiers murmur and the trade advisor leans in.
"Salt could bring luxury to our commoners, sire, while leafworm cloth would surely bring us profits from merely being middlemen to our nobles. Cinnabar and other ores could be useful but it sounds like a risky, maybe even unprofitable deal, if you ask me." You thank him for his advice, and ultimately decide to exchange dwarven your gemstones for...
A) The luxurious and highly przed leafworm cloth.
B) The peasant's luxury seasoning, aka salt.
C) Ores of minerals like cinnabar, saltpeter and others.
Or...
D) Decline further trade with the Republic.