After the Ming Empire and the Kaaika civilization signed an agreement, they did not leave the Orion Nebula immediately, but carried out resource exploration activities in Orion, as well as the personnel in the fleet of the Ming Empire and the people of the Kaaika civilization carried out exchange activities, after all, the Ming Empire spent so much time to come to the Orion Nebula, it is impossible to leave just to cut a few agreements.

And the Kaaika civilization belongs to an energy civilization, they are only interested in the energy that can be useful to them, and they don't look down on the various mineral resources in the Orion Nebula that have no effect on them, so they have not done an inch of exploration and investigation of the various mineral resources in the Orion Nebula, so it is impossible to know the specific information of various minerals in the Orion Nebula.

Of course, the Kaaika civilization is not without something to trade with the Ming Empire, although they are energy civilizations, but their civilization has existed in the galaxy for hundreds of thousands of years, and the heritage is very rich, not to mention the rich mineral resources in the Orion Nebula, even if it is the various technologies, materials and various information shelves obtained from other civilizations in the hands of their civilizations, they are very large.

Of course, the source of these technologies, Zhu Lei and they don't want to know, the Kaaika civilization has existed in the galaxy for hundreds of thousands of years, although they don't want to be interested in the various technologies of scientific and technological civilization at all, but most of the technologies that can be retained by them are related to energy, and some of the technical content has reached the standard of sixth-level civilization.

However, although there are many technologies, the Kaaika civilization cannot realize these technologies at all, because their civilization is an energy civilization, and it is impossible to produce qualified materials and parts.

As an energy civilization, the Kaaika civilization has no industrial base at all, even if they buy industrial products from other civilizations, it has no effect at all, not to mention that the technologies they get are the technologies of other civilizations in the galaxy, if they want to make deeper improvements, then they must have a very thorough understanding of these technologies, and as an energy civilization, this is precisely their weakness.

Of course, in addition to these, their civilization also has a lot of good things, after all, this is a civilization with a history of hundreds of thousands of years, especially all kinds of energy crystals, the people of the Kaaika civilization collect a lot, although these power stones are not of great use to the Kaaika civilization, even if the Kaaika civilization is promoted to a sixth-level civilization, the use of these energies is not of any use to them.

Because of these naturally generated power stones, there must be special technology to channel these energies, and these technologies can only be possessed by scientific and technological civilizations, and even some can only be done after the civilization reaches level six, so although the Kaaika civilization has these energy ores, it is impossible to turn them into energy that the Kaaika civilization can use, and now it is just cheaper than the Ming Empire.

After all, although these energy ores have no effect on the Kaaika civilization, they are very useful for the Ming Empire, because the Kaaika civilization cannot export these energies, but the Ming Empire is different, the Ming Empire is a civilization that combines technology and practice, even if it is a single type of civilization, whether it is a scientific and technological civilization or a cultivation civilization, there is a way to guide these energies, not to mention the Ming Empire, a civilization that combines practice and technology.

In the exchange and trading activities between the Ming Empire and the Kalka civilization, the people of the Ming Empire were also surprised to find that there were always a lot of spiritual energy ores in the energy ores taken out by the Kaaika civilization, which was the spiritual stones in the mouth of the Xiuzhen civilization.

However, although many individuals in the Kaaika civilization have a large number of spirit stone minerals in their hands, they can't absorb the aura in these spirit stones at all, because the energy level of the aura is too high for the Kaaika civilization, because the energy of the aura is second only to the wonton energy in the universe, and the energy level is quite high, and it is a kind of energy that is harmless to both carbon-based and energy creatures.

However, although this kind of energy is basically not harmful to all kinds of biological races in the universe, it is extremely difficult to use these aura, although there are many civilizations in the galaxy that know the existence of aura, although there are many spiritual stone mines in the galaxy, in the entire galaxy except for the Ming Empire, there is no civilization that can use these aura.

Even if Zhu Lei has the client of the mall, he learned from the mall that only a very few civilizations in all the universes can use these spirit stones, not to mention the lofty things like aura, after all, the spirit stone is visible as an energy ore, but the aura is different, aura is an invisible substance, and ordinary methods cannot detect the existence of aura at all, even if the civilization level reaches level seven or even higher, it is very difficult to detect the existence of aura in the universe, let alone use it.

In the universe known to the entire Plane Mall, apart from the cultivation civilization, Zhu Lei had never heard of any other type of civilization that could use the existence of these spiritual energy before the civilization level was promoted to a ninth-level civilization.

Therefore, Zhu Lei is not surprised that the Kaaika civilization cannot use the aura in these spirit stones, even if the current Ming Empire has a civilization that combines cultivation and technology, but if it only relies on the scientific and technological power of the Ming Empire, it is impossible to guide the aura in the spirit stones without the help of the means of cultivation civilization, let alone use these spiritual energy.

The trade between the fleet of the Ming Empire and the Kaaika civilization began to be carried out in an orderly manner after the negotiation between the two civilizations ended, the Kaaika civilization is an old civilization in the galaxy that has lasted for hundreds of thousands of years, and the reserves of various resources and technologies are not comparable to those of human beings, not to mention the various precious mineral resources that they took out, which has already flattered the major merchants of the Ming Empire in the fleet, In fact, these mineral resources were not deliberately mined by their civilization in the Orion Nebula, after all, these resources are not of much use to their civilization.

In fact, these resources were all accidentally discovered by the people of the Kaaika civilization in the Orion Nebula, so although these resources have no effect on their civilization, they still took them back and threw them into the warehouse in their own text, maybe they can use these resources one day, after all, although these resources have no effect on their civilization.

But there are many civilizations in the galaxy that want to obtain these resources, once there is an urgent need, they can use these resources to exchange them from the galaxy black market for what they want, but in normal times, these precious minerals lie quietly in the resource warehouse of their civilization, and no one cares about him at all, and some have even been in the warehouse since the birth of their civilization, until now, because their own civilization does not need these things at all.