In fact, Marin equipped copper cannons in the Beihai Army, and there was some financial pressure. Fortunately, he invested in the development of the Swedish giant copper mine, and he could obtain a lot of copper ingots every year. In addition, he could also purchase cheap copper from India and the Ming Dynasty. Therefore, he dared to have the confidence to engage in an arms race for copper cannons with people.

However, the large-caliber heavy artillery such as the Red Barracks and Karen naval guns on the warships were all cast in low-carbon steel. Anyway, people from other countries could not easily check the artillery on the warships of the Beihai Kingdom. And those warships that need to appear in people's sight, the heavy artillery on them, and Marin ordered the surface of the gun body to be coated with gold powder, which looked like copper cannons. Anyway, those outsiders who boarded the ship did not dare to scratch the artillery, and could not see the truth.

Even many sailors on the ship did not know that the naval guns on the ship were cast from iron. Only the captains and other management teams, as well as the gunners, would know the material of the artillery. Of course, those old sailors would definitely know. Only the new sailors would not know the secrets.

Those outsiders who don’t know the truth, after seeing Yishui’s “copper cannons” on the armed merchant ship of Beihai Kingdom, were all amazed - Damn, Beihai Kingdom is really rich! It consumes so much copper to cast cannons...

However, because of this, Marin's business of purchasing cheap copper in India was targeted by the Spaniards and the Portuguese. After being inspired by Marin, the senior executives of the two countries suddenly realized - Yes, why can't we buy cheap copper cast guns in India?

Although according to the original agreement on the transfer of spices, Spain and Portugal cannot restrict Marin from purchasing cheap copper in India. However, they can compete with Marin and rush to buy cheap copper from India! Therefore, Marin can also feel that the difficulty of purchasing cheap copper in India will increase greatly in the future.

In addition, I encountered trouble in purchasing cheap copper in the Ming Dynasty. It turned out that Kong Tai's purchase of large quantities of copper in the Ming Dynasty caused dissatisfaction among the Ming cabinet. Because the regents of the Ming Dynasty believed that the Ming Dynasty itself lacked copper, how could he watch the copper flow out?

It happened that because Baochao was not accepted by people, the Ming Dynasty was already discussing the complete abolition of Baochao. At this time, copper coins became the only legal currency. The withdrawal of Baochao will also cause a sharp increase in demand for copper coins. Therefore, the Ming Dynasty's dukes who were discussing the abolition of Baochao were very unhappy about Kong Tai's large-scale purchase of copper coin materials.

For this reason, the Ming Dynasty cabinet has issued a document to Kong Tai, asking him to restrain his behavior of purchasing copper in the Ming Dynasty. Because copper is a material for minting coins, the Ming Dynasty itself also lacks...

Kong Tai passed the news back to the local area, and Marin was also a little worried. It would definitely be difficult for India to buy copper. After all, the Beihai Kingdom had no colonies in India, and it was not as convenient as Spain and Portugal to purchase cheap copper. And the Ming Dynasty also restricted the purchase of copper. So, where can I go to get copper?

Marin first thought of Japan, but the problem is that the current situation in Japan is complicated. Moreover, the strength of the domestic armed forces is not weak. If the whole country's expedition is not launched, it will be difficult to conquer Japan. However, in that case, the risk will be great. After all, there is a danger of the old nest being destroyed. If there are fewer people, it will not be able to suppress the counterattack of Japan's local forces. Even if it occupys the Tongshan Mountain, it may not be able to mine copper mines with peace of mind.

Then, I can only consider other places...

Marin thought of the Chukikamata copper mine in Chile again, which was the world's number one copper mine in the future, and it was an open-pit mine! But after thinking about it, Marin gave up again...

Why? The problem lies in the local environment of the Chukikamata copper mine! Chukikamata is located on the edge of the desert in northern Chile, with an extremely dry and hot climate. In this harsh environment, it is impossible to gather a large number of miners to mine. However, the supply of fresh water is very difficult.

Just like the saltpeter mine near Iquik that Marin mines now, due to climate reasons, it can only be mined by drought-resistant and heat-resistant Egyptian slaves, and the output is difficult to increase. The most important thing is that freshwater supply is difficult, and water supply can only be supplied by camels. The saltpeter mine near Iquik is relatively close to the sea, and there is no problem with freshwater supply. And Chukikamata is deep in the desert, close to the western foot of the Andes, far from the sea, and it is really difficult to guarantee freshwater supply... Unless the train is opened later...

Therefore, Marin had to temporarily give up this super copper mine in Chile. Then, he thought of the Olympic dam in Australia... but he quickly denied this mine, because although the Olympic dam has a large reserve, it is accompanied by gold. However, the copper mine in Temao is at a depth of more than 100 meters underground. With its current technical level, mining is extremely difficult and extremely dangerous... Therefore, this can only be PASS...

In addition, Marin also knows the Bingham copper mine in the United States, the Zambian copper mine and the KDP copper mine in the Congo... However, none of these are useful...

The American Bingham Copper Mine is located in the western Utah state, deep inland, and Marin obviously has no ability to develop it. The copper mines in Zambia and the Kinth Congo, one currently has the territory of Spain and the other is the territory of Portugal, are not easy to start.

In addition, there seems to be a copper mine in Panama. But Marin rejected the plan to collect copper in Panama. Because the climate in Panama was too harsh in this era. He took a group of miners to Panama to collect copper, but he knew how many of the miners could survive.

The same is true for copper mines in Zambia and the Kyrgyzstan Congo. In this primitive era when it was not developed, the climate there was simply a life-threatening. If you want to pick copper, you might as well wait... It is better to choose to pick copper in the desert of Chukikamata, Chile. At least, as long as there is water in the desert, it is easier to survive than in the rainforest. After all, there are no poisonous mosquitoes and insects. If there are, you will die of thirst...

...

Marin was very sad, so he went to Ganfushuizi to find comfort. However, after listening to Marin's complaint, he made a good suggestion...

This chapter is not finished yet, please click on the next page to continue reading the exciting content behind! "Mr. Husband, why are you obsessed with occupying the Tongshan Mountain? It is also OK to cooperate with others to develop..."

"Cooperate? How to cooperate?" Malin was stunned.

"Didn't you say that there are many copper mountains in Japan? Since you want to obtain copper quickly, why not use the local daimyo to develop mines first? In this way, you want to get copper quickly!"

Marin thought about it and it was true. However, he was worried that after the copper mine was mined, the local daimyo would turn against him and not sell him copper...

After hearing Malin's concerns, Gan Fu Shuizi covered her mouth and chuckled:

"Mr. Husband has filtered it. You know, Japan is in poverty-stricken. As long as you can bring Japan's in short supply goods, such as weapons and armor that Damingmen is in urgent need, as well as rare goods that are in urgent need of silk and sugar, and you still have to worry that the other party will not sell you copper?"

Marin immediately reacted - yes, now it is the seller's market. The Japanese-controlled daimyos are poor and cannot produce any goods to exchange with people. If there is copper to exchange, they will definitely produce them. Because they can't produce other valuable goods to exchange with people...

"Maybe, we can really use the local daimyo to develop the copper mine first?" Marin said with some uncertainty.

Liganfushuizi said:

"My husband, it will be very convenient to let those local daimyos develop Tongshan. After all, they are locals... In addition, if Tongshan is developed in the future, it is not impossible for Nobunaga's army to seize it..."

Marin's eyes suddenly lit up - Yes, first use the locals to develop the Tongshan Mountain. Then, he accumulated enough strength and then took the Tongshan Mountain off... Hehe...

At this time, the name of a famous bronze mountain emerged - Zuwei Tongshan!

The Azuo Tongshan is one of the largest copper mountains in the Edo period in Japan, and it is also the main source of materials for the Japanese main copper coins in the Edo period - Hironaga Tomotobao. It is said that at its peak, the annual copper production of Azuo Tongshan reached 1,200 tons! This is the production in ancient times, the output in pure artificial age!

If Marin now fools Zuwei Tongshan’s local daimyo first to develop copper ore and obtain enough copper... Later, he will find a way to swallow Zuwei Tongshan…
Chapter completed!