Within the storage ring that Ace handed to the elder were all the weapons he had stolen from the chief forger disciples and some alchemy treasures that were useless to him.
That's why Ace wanted to turn them into spirit stones or spirit crystals with dark affinity. They were very useful in forging, especially when creating an elemental affinity treasure.
Furthermore, Ace also had a huge amount of wind and earth affinity spirit stones and spirit crystals he found in the Moon Fiend King's storage ring, and he was going to use them to buy dark affinity materials as well.
But the elder said something that surprised Ace, "Why did you have so many treasures with other chief forger disciples' Forger Symbols?" he asked sternly.
"What forger symbols?" Ac asked, completely clueless.