Buy as much Titanium from her as possible since it gives the best profit. Have the 'Grey Market Connections' perk, and you will sell items for 10% more than what they are worth at her store. Complete her 'A Packaged Deal' side quest to get a discount at her shop. Drive along the road to the west to the following location to find the station with Thrasia.
Land on Kadara, go to the Transit Console, and select 'Take Lift to Slums' as the destination. First, complete the Priority missions until you reach the Govorkam System.