"The river bends to the South and flows to the Xiangjiang River to have a look." A Shenzhen River has witnessed the magnificent history of China's two "special zones". More than 40 years ago, Shenzhen riverside, reform and opening up, Chunjiang water heating, the "Shenzhen speed" of three days and one floor was born, and a hot land opened the journey of pursuing dreams. This layout was the national strategy at that time. Since then, Shenzhen and Hong Kong have enjoyed a blend of mountains and rivers, cultural affinity and shared weal and woe. The winding Shenzhen River flows quietly in time, and the North-South integration of the river bank is also natural. In October 2021, the chief executive of the Hong Kong Special Administrative Region, Mrs Carrie Lam, delivered her fifth policy address during her term of office. On the same day, the northern metropolitan area development strategy was published, which showed Hong Kong's ambition to build a northern metropolitan area in the spotlight of the world. The concept of "two cities and three circles" has once again stirred up the two cities of Shenzhen and Hong Kong separated by a river. Hong Kong "goes north", Shenzhen has been waiting for a long time. On October 20, the "second Shenzhen think tank summit in 2021" hosted by Shenzhen decision making Advisory Committee and Shenzhen think tank alliance was held in Shenzhen. At the meeting, scholars discussed how to connect, match and balance with the northern metropolitan area of Hong Kong, and put forward the concept of "port city belt". There is no doubt that a world-class new twin city story is being staged. cross the river The construction of the northern metropolitan area of Hong Kong is inseparable from the in-depth integration and coordinated development with Shenzhen, including the "river crossing" of funds and the "river crossing" of talents. "Crossing the river" is a key word for Hong Kong to build a northern metropolitan area. In 1911, the completion and opening ceremony of the whole line of Guangzhou Kowloon Railway was held at Luohu bridge in Shenzhen. In the following decades, "Luohu station" has become the only channel and transportation hub connecting Hong Kong and the mainland, from which people and logistics can reach the whole country and the world. In 1980, at the beginning of the establishment of Shenzhen Special Economic Zone, there were different opinions on where to start the construction. Finally, they chose to take the lead in the development on the North Bank of Shenzhen River, flatten Luohu mountain, move mountains to fill depressions, build roads and buildings, build a new joint inspection building, and expand the hub area of ports and railway stations Today, there are many tall buildings on the Bank of Hebei and Shenzhen; On the land of Hong Kong on the Bank of Henan Province, time seems to have been pressed the pause button, just like the "paradise" next to the prosperous city. For a long time, Hong Kong's international financial center has been built on Hong Kong Island, which has the densest skyscrapers and the highest population density in the world. At present, more than 90% of Hong Kong's population and businesses are gathered on both sides of the Victoria Harbour, forming a Victoria Harbour metropolitan area. More and more people of insight in Hong Kong believe that the development of both sides of the Victoria Harbour has been highly saturated, and the high house prices have raised the overall cost of Hong Kong society, which has been difficult to support the development of Hong Kong in the new era. Relatively speaking, there are still large areas of undeveloped land in the northern New Territories of Hong Kong. These lands are close to Shenzhen and have potential and can provide a lot of development opportunities. "It is not just a piece of land to meet the living needs of Hong Kong people, but to become another city with comprehensive functions." In an exclusive interview with the southern newspaper reporter, Lin Zheng Yuee revealed the original intention of the construction of the northern metropolitan area. The realization of this blueprint is inseparable from the deep integration and coordinated development with Shenzhen, including the "river crossing" of funds and the "river crossing" of talents. There are "a lot of opportunities" for cooperation between Hong Kong and Shenzhen in the fields of new economy, science and innovation, medical treatment, education and so on. Therefore, in his policy address, he made it clear that the northern metropolitan area should form a strategic layout of "two cities and three circles" with Shenzhen separated by a river, and become the second economic engine of Hong Kong. If we can take the opportunity to build the northern part of Hong Kong into a new "metropolitan area suitable for living, business and tourism", It can not only become a new platform for supporting the development of the southern (Victoria Harbour) metropolitan area, but also form the so-called "three circles" with Shenzhen separated by only one river, that is, the "Shenzhen Bay high-quality development circle", "Hong Kong Shenzhen close interaction circle" and "Dapeng Bay / yinzhoutang ecological recreation tourism circle" adjacent to Shenzhen from west to East in the north of Hong Kong. In this 55 page policy address, Mrs Lam described it as "never written so much about Hong Kong Shenzhen cooperation". It is understood that the northern metropolitan area includes two local administrative regions, Yuen Long District and North District, including mature new towns such as Tin Shui Wai, Yuen Long and Fanling / Sheung Shui and their adjacent rural areas, and there are six new development areas and development hubs at different planning and construction stages, including Gudong North / Fanling north, Hongshui Qiao / Ha Village, Yuen Long South, Xintian / Lok Ma Chau Man Kam to and new towns in the North New Territories. It borders Shenzhen and has seven land ports. It is the most important area in Hong Kong to promote the integrated development of Hong Kong and Shenzhen and contact mainland cities in Guangdong, Hong Kong, Macao and the Great Bay area. "Shenzhen is Hong Kong's land gateway to mainland cities in Dawan district. Over the past 40 years, the seven land ports and connected transportation infrastructure built by Hong Kong and Shenzhen from west to East have made it possible for the two places to cross Deep Bay, Dapeng Bay and Shenzhen River and connect with each other, thus forming a spatial pattern of" two cities and three circles. " Lin zhengyue'e said that the establishment of the spatial concept of "two cities and three circles" is conducive to the Hong Kong and Shenzhen governments to jointly promote the close cooperation between the two places in economy, infrastructure, innovation and science, people's livelihood and ecological environment, and work together to produce "1 + 1 > 2" benefits. In order to better "cross the river", Mrs Lam introduced the five railway projects proposed in the policy address, including three cross-border railway projects. "Among them, the Hong Kong Shenzhen west railway goes from Hong Kong's Hongshui bridge to Shenzhen's Qianhai, and the other is to extend our east railway line to the new Shenzhen Luohu station (Luohu South Station), and set up a" one place and two inspection "port in Shenzhen". Under such a cross-border traffic layout, coupled with the original Guangzhou Shenzhen Hong Kong high-speed railway, there will be four cross-border railways between Hong Kong and Shenzhen in the future, which will pass through the customs in the form of "one place and two inspections". Citizens do not have to cross the Shenzhen River on foot and can go directly to Shenzhen by train. Tuyere As a first tier city in the world, Hong Kong's financial development alone is not enough. It also needs to develop high technology. In recent years, Hong Kong has been committed to developing innovative technology industries and promoting Reindustrialization. The winding Shenzhen River flows quietly in history, and people on both sides of the river are also familiar with "crossing the river". At the end of 1947, Shanghai businessman Li Zhenzhi founded Danan yarn factory in Hong Kong. As the first yarn mill in Hong Kong after World War II, it opened the road of rapid development of Hong Kong's textile industry. Hong Kong has changed from a free port dominated by entrepot trade to a free port dominated by product export, thus embarking on the road of industrialization and realizing its first economic take-off. With the beginning of reform and opening up, the rising cost in Hong Kong restricts the traditional manufacturing industry represented by the textile industry. A large number of Hong Kong manufacturers have gradually moved to the mainland, opening a new model of "front store and back factory" and "three supplies and one compensation" in the mainland with the attitude of win-win cooperation. At the same time, it has made new space for Hong Kong's economic development and created Hong Kong's "Asian miracle" with the help of China's rapid development, Relying on the financial industry and professional service industry to achieve the second take-off. From entrepot trade to financial industry, where will Hong Kong take off next? The answer is: Kechuang. Hu Gang, President of South China Urban Research Association and professor of Jinan University, said in an interview that Hong Kong has realized that as a global first tier city, financial development alone is not enough and high technology needs to be developed. This trend has been obvious in recent years. Indeed, in recent years, Hong Kong has been committed to developing innovative technology industries and promoting Reindustrialization. For example, many universities in Hong Kong have strong basic scientific research strength. Through transformation and application, they can provide a driving force for sustainable development for Hong Kong's Reindustrialization. In her policy address, Mrs Lam also stressed that "Reindustrialization" should be rooted in Hong Kong and Chuangke should become the driving force of Hong Kong's new economy. There are already traces to follow. In 1997, after the completion of the first phase of Shenzhen river treatment project, a 0.87 square kilometer loop was cut and straightened. In January 2017, the governments of Shenzhen and Hong Kong signed the memorandum of cooperation on Hong Kong and Shenzhen promoting the common development of Luomazhou Hetao area, which made it clear that the two sides would jointly develop the "Hong Kong Shenzhen innovation and Technology Park" in Hetao area A. at the same time, Hong Kong also supported Shenzhen to build the regional planning of about 3 square kilometers adjacent to Hetao area on the north side of Shenzhen into a "Shenzhen Science and Innovation Park", Jointly build a "Shenzhen Hong Kong Science and technology innovation cooperation zone". In February and August 2019, "Shenzhen Hong Kong scientific and technological innovation cooperation zone" was written into the outline of the development plan of Guangdong Hong Kong Macao Bay district and the opinions of the CPC Central Committee and the State Council on supporting Shenzhen to build a leading demonstration zone of socialism with Chinese characteristics. However, the shortage of land is still an important constraint on the development of Hong Kong's innovation and technology industry. Although the planned gross floor area of the Hong Kong Shenzhen Innovation Park in Hetao area under construction is about equal to three Hong Kong science parks located in baishijiao, it is dwarfed by the Shenzhen Science and innovation park on the North Bank of Shenzhen. In this regard, Lin zhengyue'e said that one of the objectives of the "northern metropolitan area" is to build it into an international innovation and technology center, complement the innovation and science development of Shenzhen and even other cities in Dawan District, and become a "Hong Kong Silicon Valley". Qiu Dagen, President of Hong Kong Information Technology Federation and executive vice president of Guangdong Guangdong Guangdong Hong Kong Macao Cooperation Promotion Association, analyzed that the layout of Hong Kong's science and innovation industry has been less than 10 years. Although the relevant investment is less than that of Shenzhen, it has also bred more than 3000 science and technology innovation enterprises, which is not a low proportion in areas with a considerable population in the world. In addition, Hong Kong has a number of world-class universities and disciplines with strong basic research ability. The Hong Kong free port system remains attractive to international scientific research resources. "However, it can be seen that the relatively well-developed technology enterprises in Hong Kong are mainly based on the original industrial foundation, such as logistics and finance, and are relatively thin in the field of lack of industrial support." Qiu Dagen believes that in the future, Hong Kong needs to be more proactive, establish innovation directions such as biotechnology and smart city, strengthen efforts to promote development and carry out more policy innovation. Hong Kong's positioning and construction objectives for the northern metropolitan area are the determination of the HKSAR government to develop science and innovation and promote industrial transformation and upgrading. It is also an effort to adapt to the current situation and seize opportunities. Many scholars also believe that Hong Kong places the future economic development core of science and innovation industry in the northern New Territories adjacent to Shenzhen. In addition to land supply and demand, Hong Kong looks forward to deep interaction with Shenzhen and even the mainland to find the break of the third transformation. Complementary There is room for Hong Kong and Shenzhen to complement each other's advantages. Hong Kong's finance, trade and shipping are developed, and Shenzhen's strengths are manufacturing and science and technology industries. How can Hong Kong develop in dislocation with Shenzhen, which also takes science and innovation as its "label"? Mrs Lam said that there was indeed room for Hong Kong and Shenzhen to complement each other's strengths. In terms of industrial structure, Hong Kong has developed finance, trade and shipping; However, in terms of manufacturing and science and technology, it is a short board and lacks large-scale science and technology industries, which happens to be the strength of Shenzhen. "We used to say that Chuangke was doing R & D in Hong Kong, manufacturing in Shenzhen, and then raising funds and listing in Hong Kong. But in fact, it can be subdivided in the manufacturing industry." She further said that the construction of Xintian science and Technology City in the northern metropolitan area is twice as large as Luomazhou Hetao District, and is positioned in the scientific and technological innovation center and high-end science and innovation service industry. "With a place, some cutting-edge, advanced and intelligent creations can also be made directly." For example, medical devices or drugs, Hong Kong can build an advanced manufacturing industry