Korpin

Lady Korpin is a member of the Dwarven Merchants' Guild. The Inquisition needed a source of lyrium, and because the Chantry monopolised the lyrium trade with Orzammar, Josephine approached the Dwarven Merchants' Guild instead.

Involvement
Lady Korpin appears at Haven after Champions of the Just or In Hushed Whispers is finished. She is first overheard talking to Josephine as they finish up an agreement for Korpin to provide the Inquisition with lyrium for their new allies. She leaves Josephine's side when she notices The Herald wishing to speak to Josephine instead. Josephine then explains that the deal she's just made angered the Chantry because they are scared they're losing power, as previously the Chantry controlled the lyrium trade.

Trivia

 * She seems to own the mine the lyrium will come from, as she says that her miners will be happy about the deal.