text: Copper Chia has begun the validation process and allowed digging from 19/3?
classes:  No, the information of Dong Chia allowed to trade was published at the beginning of the first quarter.  Besides, the information of Dong Chia allowed to trade was published at the beginning of the first quarter.  Yes, the information of Dong Chia allowed to trade was published at the beginning of the first quarter.  Meanwhile, the information of Dong Chia allowed to trade was published at the beginning of the first quarter.