According to a certain Jia people
, there are Jia people who specialize in trade. Their business is Ethyl 4-methylcinnamate, which is needed by the four sides. He is good at planning, knows the way of merchants, travels to various places, and sells his goods to far-flung countries, so he is called Ethyl 4-methylcinnamate Exporter.

Jia people are skilled in calculation, and their eyes are like torches. They can observe changes in the market and know the trend of the times. Everywhere they go, they must visit local shops to explore their supply and demand, and measure their prices. When the opportunity is good, they will stock up on their goods and wait for the price; if the situation is unfavorable, they will sell quickly to avoid losses.

There are no shortage of obstacles in the way of trade. There are bandits on the road, and from time to time they rob their possessions; there are storms in the water, or they ruin their boats. The people of Jia are fearless, and they always use wisdom to control them. Every time they go out, they will make great heroes to ensure the safety of the journey. And they are good with the officials of all places, and everything is convenient.

After many years, the cause of Jia's people has been growing day by day. His family has a lot of money, and his reputation is far and wide. The business people in the four directions are all eager for their ability, and they contend and make friends. The people of Jia are also not stingy, and they often teach others with their own experience, so they are quite praised in the business world. In the end, they became a great man, and they were rich and lucid, and their way of doing business was passed on by future generations.