It's not easy to be a good boss these days, and the expenses up and down the house are complicated.

Therefore, among these students, Li Hang trained several good at mathematics, and trained several good at mathematics for the Su family, so that they could act as the managers of the accounts inside and outside the mansion.

They are only responsible for accounting.

Zhou Yurong did the work of those reviews herself.

There was no way, Li Hang didn't plan to let her do things, as long as she was as beautiful as a flower, but in the end she insisted on managing the family.

Originally, it was nothing to hand over the financial power to her, but Li Hang wanted her to be in charge of some internal accounts, after all, some accounts are not easy to see, such as the consumption of each workshop, which needs to be counted separately.

Li Hang definitely needs to summarize and make a statistic here, and this kind of work will definitely not work for others, so it can only be handed over to Zhou Yurong.

The things in hand were almost arranged, and Li Hang went home.

This Ying Yun at home has been waiting for a long time.

"Li Hang! What are you pulling me in a hurry for? ”

Drinking tea and looking at Li Hang with a strange face, Ying Yun didn't understand it, it was starting to get colder and colder this day, and he didn't want to go out now.

"Let you find someone you can trust, what I said is completely trustworthy, and I will never betray you, can you find it?"

"Yes!" Ying Yun put down the teacup and pointed to the old servant who served him. "Uncle An is like this!"

Li Hang rolled his eyes. "Uncle An is too old to go out, is there anyone else?"

"Uncle An's son! I grew up sailing with me, and I was physically strong, and most importantly I was one of the people my father had told me that I could fully trust. Ying Yun whispered.

After hesitating for a while, Li Hang still nodded. "I have some money left over from the house, I want to buy land!"

Buying land...... Ying Yun glanced at Li Hang, what a big deal, it looked like some kind of thing.

Li Hang rolled his eyes. "The place I want to buy is not this kind of field, I want to buy the mountain!"

Growing his mouth, Ying Yun put down the teacup with a smile. "Li Hang, you don't really want to go to the deep mountains to cultivate, do you?"

"No, I'm looking for something, a new fuel, which if used to make steel, can be made into good steel with a little processing."

The coking of coal is actually combustion in an oxygen-deficient environment.

Releases as much sulfur and phosphorus as possible.

If you can make it successfully, you can go straight from bronze to steel.

And that's not all.

Once you really enter the age of steel, you can do a lot of things.

Such as a fitter table and so on.

A lathe or something, you can also make it.

But it's all about coal.

Once the coal is found, the good quality part can be directly made into coking coal, and then the poor quality part can be directly mixed into yellow mud and then made into lotus root coal.

This kind of thing Li Hang also fought with the old man when he was a child.

Get some yellow mud and cinders, and then live together with water, and use the lotus root coal to beat it out, and pile it up there to dry, and then put it in the stove to burn, which is more durable than firewood, and you can not only use your own, but you can even use salt and some other things to buy land in other countries! As long as you find a coal mine, you can buy it directly, and when the time comes, a shipload of salt mines will go over and pull a boatload of coal mines back.

This kind of non-renewable resources is directly used by other people's homes.

Moreover, if this kind of coal mine can really be bought, it can also accumulate some mining technology in the future.

These hills can also be used as hunting areas or for planting fruit trees.

In these years, it is not as densely populated as in later generations, and it can be said that the entire Central Plains region is vast and sparsely populated, and some deep mountains and old forests will even become bandit dens.

Although it will be a bit infiltrating to say this, but think about it, the white-fronted insect is still a pest these days, and it can still occupy the mountain as the king.

Think about the modern tigers that are kept in zoos and protected, a little thinner and tourists say that zoos abuse animals.

A little fatter, tourists say you don't understand the tiger of the elderly.

At this time, wildlife resources are still quite abundant.

As long as a suitable area is carved out, getting more resources is the last word.

Now no matter what you do, you have to ask for something, and you can't say anything and do nothing, and the resources will come directly. In this ancient period, coal mines still need to be developed, and there is nothing good about digging coal in these years, no matter what era, digging coal is a troublesome and dangerous thing.

"I want him to help me find a black stone, once I find it, it will be much easier for us to smelt steel in the future, and this kind of person can even be trained to become an expert in finding minerals in the future, and then not only with us, but we can even go to other countries and places to find these minerals, and then exchange salt and other things for money, buy these lands in their country, and then secretly transport these minerals. Ship back! Li Hang said with a smile, several surrounding countries, whether it is Japan, South Korea or Southeast Asia, have the value of doing this, especially the plantations in Southeast Asia, and the spices produced are simply equivalent to gold.

If you can colonize these places at this time, or even turn them into national territory. Then there will be huge benefits, plus there are many ports in Southeast Asia, once you really control some key points, then some places will simply become your own backyard.

But to mine these things, there must be relevant technology and corresponding labor, and in this era, most of the people who do this kind of thing are slaves or lowly people.

Especially those prisoners of war.

Now that they have found these mines, they can still keep all the prisoners captured by the border army, and then the border army will be stationed next to them to form a mining village, not to mention escaping, it will be difficult for them not to take root in this place, and once they marry and have children here, and start their own lives, these slaves or lowly people will begin to gradually integrate into the local area and become a stable source of labor.

Li Hang didn't think about making a human rights society in the past.

In these days, there is no BUFF bonus of technology, and in many cases, the direct exploitation of slaves is an important power source for social development.

It is impossible for me to go against this general trend, only when the level of science and technology comes up, and my own people can be fed and clothed, then it is said that those lowly people in the country will be eliminated, and only prisoners of war will be retained, then it will be called science, and that will be good.

As soon as they came up, they said that they would abolish slavery, but as a result, everyone did not have enough to eat, and in less than three days slavery would be restored.

And this mining is the beginning of industrialization, and it must be in your own hands. Otherwise, when it comes to real large-scale smelting, these mines must be able to be supplied.