Several days after the North Korean leader returned from Beijing, new changes and major movements occurred overnight at the border and were immediately discovered by the South Koreans.

South Korean media that China and North Korea are simultaneously upgrading customs facilities near the New Duck Green River Bridge, a project that has been delayed for many years and may be on track in the foreseeable future.

According to the source, the external construction of many buildings near the new Yalu River Bridge has been completed, and the internal construction is still going on. Specifically, it includes plastering, laying tiles and installing lighting equipment. The completion time is scheduled for early November.

A significant part of the facilities will be used as customs and commercial complexes.

Not only that, but the preparations for the bidding of shops in the customs building are also in full swing, and merchants all hope to seize the prime location before the bridge is opened to traffic.

In addition, South Korean media also revealed a time, September 11.

They claim that it was on this day that China began consultations with North Korea, the main content of which was simplifying customs procedures and jointly managing the New Duck Green River Bridge.

This will be the systemic basis for the future expansion of trade between the two countries.

If the news from the Korean media is true, there will be a big move after the two countries.

In fact, the situation related to the new Yalu River Bridge is a window to observe China-DPRK relations.

China and North Korea have thousands of kilometers of boundary, but most of them are water boundaries, and under the influence of this objective factor, bridges are extremely important for the interconnection between the two countries.

However, the old and broken bridges that have broken several times have caused difficulties in the exchanges of materials and personnel between the two countries, so for years, China has proposed to build a new bridge and give new momentum to the development of relations between the two countries.

However, the North¡¯s attitude is not so positive.

Until the beginning of 2010, the two sides signed the Agreement between the DPRK and China on the joint construction, management and maintenance of the Duck Green River Border Highway Bridge.

Subsequently, the construction of the bridge was very fast, the founding ceremony was held at the end of the year, the opening ceremony was held in the second year, and the main construction of the bridge was completed at the end of 2014.

In 2015, North Korea officially started construction and began to build the approach bridge part of the new Yalu River Bridge and some supporting facilities.

From this point of view, the bridge was opened at the time, however, it took 10 years to wait.

Clearly, the late opening of the new Duck Green River Bridge is neither a financial nor a technical issue.

I believe everyone will remember that in 2016 and 2017, the two actions of the DPRK caused a dramatic shock to the situation on the peninsula and even beyond.

But as the international pattern changes, North Korea's attitude towards the New Duck Green River Bridge has changed.

Satellite imagery earlier this year showed new construction signs on the North side of the New Duck Green River Bridge, as well as blue roof structures associated with long-term construction plans.

South Korean media speculated at the time that it could be a large customs complex, corresponding to the construction on the Chinese side.

Subsequently, satellite images in May this year showed that China had drawn information on the road surface on the Chinese side of the new Yalu River Bridge, and the characters "special passage for passenger cars" written in bright yellow pigment could be clearly seen.

There are various signs that China and the DPRK are making preparations to restart the bridge. At the same time, it is also clear that it is not just such an engineering project that has been restarted between China and the DPRK.

And this incident inevitably makes people combine it with the recent visit of the North Korean leader to China.

On the one hand, it reflects the importance of the relations between China and the DPRK; on the other hand, in the talks with China, some of the words of the North Korean leaders have attracted widespread attention among South Koreans.

He has repeatedly spoken about economic issues and expressed the willingness to exchange experiences with the Chinese side on economic development and other aspects, to contribute to the development of the Korean country's construction cause, as well as to deepen mutually beneficial economic and trade cooperation between the two countries, and to more results.

South Korea¡¯s general interpretation of this is that North Korea¡¯s next important task is to seize the economy and build.

It can also be seen from this that North Korea's decision-makers are well aware of the importance of economic development.

Although in so many years, North Korea has achieved no small achievement through self-sufficiency, it must be open to wanting to go further.

High-level Russia-DPRK relations can certainly bring a lot of resources, energy and military technology to Pyongyang, but when it comes to economic development, the help provided by Russia is definitely incomparable to that of China.

Moreover, Pyongyang also understands that while Russian-Russian cooperation has brought huge benefits to North Korea, North Korea cannot be too dependent on Russia.

In this case, we can also have a rough prediction of some actions of China and North Korea in the future. From economic and trade to personnel exchanges, there are likely to be new changes.

Further deepening China-Korea relations and cooperation will also bring a new round of change to the regional and even global situation.