Regarding the mining business, Tang Qing came up with this idea on the spur of the moment.
It couldn't be helped. Without an opportunity, it would be difficult for him to voluntarily venture into a new 'unprofitable' industry. It would be a different case if there was a System Task, but currently, there is no System Task forcing him to step into industries other than loans.
Therefore, what he chooses to do can only be decided based on his interests or opportunities. For example, if it weren't for the increasingly deep infiltration and growing influence in Thailand, coupled with Thailand being the largest rice exporting country in the world, he wouldn't have ventured into the food industry so soon.
It's the same with the mining business.
