Incheon is very close to Seoul, the capital of North Korea, only 40 kilometers, and can travel very quickly along the Han River.

Therefore, in a very short period of time, the news that a Ming merchant ship carrying a large number of goods came to North Korea also spread, and after Kim Jong Suk received Du Mingen's gift, the efficiency of this work was also extremely high, and people were sent everywhere to contact powerful businessmen in North Korea.

Although the Korean monarch Yanshanjun was brutal, he received a letter written by Zhu Houzhao to him, knowing that the fleet was coming to buy grain for relief to the victims, and he directly ordered the grain from the Korean official warehouse to be transported down the Han River to Incheon.

As for the merchants of the Korean country, after learning that there was a caravan from the Ming Dynasty coming and carrying a large amount of goods from the Ming Dynasty, they rushed to Incheon one by one.

The goods from the Ming Dynasty are definitely the best-selling goods in this era, because everything in the Korean country is learned from the Ming Dynasty, and the things of the Ming Dynasty are sought after in the Korean country, and the rice paper, silk, porcelain, tea, etc. of the Ming Dynasty are all things loved by the upper class of the Korean people.

Although North Korea can also produce paper, silkworms and silkworms, and also have its own porcelain and tea planted, etc., and it is still very good in all aspects, but it is not as fragrant as the Ming Dynasty.

So the next day, when Du Mingen and the others were still asleep and sobering up, the ministers sent by the Korean monarch and a large number of Korean businessmen had already come to Incheon County.

When Du Mingen woke up, the entire Incheon County became extremely lively, and the grain transported by the ministers sent by the Korean monarch had arrived here in Incheon, and at the same time, these merchants also raised a lot of grain and arrived here in Incheon sporadically, waiting to trade with Du Mingen.

Du Mingen, who learned the news, was also happy to get busy, things went even more smoothly than expected, even the monarch of the Korean State sent ministers to help, and even emptied the granary of his own Korean State, which shows how respectful the Korean State is for the Ming Dynasty.

Du Mingen's side first met with the ministers sent by the Korean monarch to express his gratitude to the Korean monarch, and at the same time accepted the food that the Korean monarch supported to the Ming Dynasty.

Of course, as a return gift, Du Mingen also sent a lot of complete sets of glass products, from glass mirrors of various specifications to glass lamps, to glass study treasures, etc., all glass products were sent to Yan Shanjun several sets.

On the one hand, this is considered a return gift, this is a rite of passage, the Ming is the suzerainty of the Korean State, it is true, but the Ming Dynasty has always treated the Korean State well, every time the Korean State pays tribute, the Ming side of the gift will be several times, and the tributary country has never suffered a loss.

Now the monarch of the DPRK is helping the Ming Dynasty, and naturally he can't help but say something, anyway, the glass products are very cheap, and the other party likes it when it is sent out, and the baby is in general.

On the other hand, this is also Liu Jin's plan, the price of this glass product in Daming has been very high, although the market of Daming is huge, the consumption capacity is great.

But after all, it is still limited, and this sea is naturally to open up overseas markets, and once I come to North Korea, the main commodity I bring is a variety of glass products.

Sending a lot of glass products to the Korean monarch is equivalent to advertising their own products, or the best advertisement, and this glass products will definitely be popular throughout the Korean country in a very short period of time.

As a result, a steady stream of huge profits will be brought back, and in the future, the ship's glass products can be brought back with a shipload of gold and silver, and Liu Jin has naturally calculated this transaction clearly.

After receiving the grain and sending a return gift, Du Mingen began to be busy again and did business with the merchants of the Korean country.

This is Du Mingen's strength, he is a businessman, so he also learned from Liu Jin in the capital to make the same ancient and modern buildings, all kinds of glass products are put out, invite the ministers sent by the Korean monarch, the Incheon County Commander and the merchants of the Korean State to come over to visit, visit, and then talk about business.

……

The wharf near the port of Incheon was full of people, and ordinary people had been temporarily driven away by Kim Jong-suk, the commander of Incheon County, and all the businessmen who had gathered at this time were businessmen who had been rushing over day and night after receiving the news.

At this time, these merchants are constantly looking at all kinds of glass products, all of which are placed on the table, and in the sunlight, these glass products are shining and loved.

At each table, there were cadets from the Maritime Academy standing, patiently explaining to the Korean businessmen the role of these glass products, and of course, the most important price.

"Mr. Li, this is the best-selling mirror in our Daming capital, as long as there is a big family with a façade in Daming Beijing, this married daughter must have a dresser with a mirror as a dowry."

"How much does this cost?"

"It's not expensive, that's two thousand taels of silver."

"Hey~ two thousand taels of silver a piece, this is too expensive."

In front of a dresser with a mirror, when a North Korean businessman heard the price, he couldn't help but gasp, this thing is really not ordinary.

"Of course it's expensive, otherwise how can it be used by a large family, and it is not something that ordinary people can afford in our Daming, ordinary families generally choose this kind of mirror, as long as five hundred taels of silver is enough."

When the students of the Maritime Academy heard this, they smiled and nodded without denying it, and then picked up a much smaller mirror and introduced it.

"Mr. Jin, like this kind of study four treasures is currently the most popular study four treasures in our Ming Dynasty, whether it is used to send, or for personal use is very good, you see this is transparent, and the writing is more charming....."

"How much does this cost?"

"It's not expensive, it's not expensive, a set is only a thousand taels of silver, this time we came in a hurry, we didn't bring much over, we have just sold twenty sets, and now there are less than thirty sets left."

"In addition, there is this glass tea set, glass wine set, this time the number of people brought over is not much, and it will be sold out, so if Mr. Jin sees it, it is better to put it in his pocket as soon as possible, and I don't know when I will buy it next time, this thing is also very rare in our Daming."

“……”