Im a machinist and I actually buy a lot of stock from Posco and even my grandfather before me bought steel from Posco when it was called Pohang Iron & steel co.
Im huge on safety and cleanliness, I got invited to tour the factory and I was amazed. Everyone there had proper PPE including gloves, respirators, heat shielding ect., everything was totally immaculate, machines are inspected in the factory sometimes up to twice a day and not only do they test their own product but they send a sample off for secondary testing which is something extremely unique