"Only a little over 300 kilograms a year, isn't that too slow?" Lin Bai said indifferently, "Are you sure you're not deceiving me?"
"I wouldn't dare! I wouldn't dare! It's indeed just over 300 kilograms," the black-robed supervisor hurriedly replied. "Because mining Incorruptible Divine Iron is incredibly difficult, and the Zhu Family has been conducting their operations in secret, the progress has always been very slow!"
"You've also seen it, the Incorruptible Divine Iron Mine is extremely hard. Even Extreme Martial Spiritual Tools can't leave a scratch, we need to chip away at this Incorruptible Divine Iron bit by bit before we can take it away!"
"Given the Spiritual Power of a miner at the Flying Sky Realm, it takes several days, or even a month to extract about a kilogram of Incorruptible Divine Iron!"
"Furthermore, the consumption of picks for the Extreme Martial Spiritual Tools is enormous. Basically, every day a chisel gets worn out!"
