EDIT: Sorry I misunderstood the capital ship construction menu. I thought that the 1/2 or 1/3 next to the capital ship exotic goods constructions costs meant that I only HAVE 1 out of 2 or 1 out of 3. As it turns out it means I will use up 1 out of 2 or 1 out of 3. I would suggest changing this. It is quite confusing.
The exotics menu says that I have 3 Tauranite and 2 Indurium available, but the capital ship construction menu says that I only have 1 of each. It still let's me build Kol capital ship though.