In Shenzhen, China, the Chinese government has implemented various policies to boost economic growth and attract foreign investment. However, despite this, the city's CS (Construction Supply) industry is still lagging behind other major cities in terms of growth rate.

According to recent data from the Economic Information Bureau of Shenzhen, the construction supply sector in Shenzhen accounted for about 16% of total GDP in 2019, while the total industrial production was only around 7%. This indicates that Shenzhen's CS industry is not as competitive as expected.

Furthermore, Shenzhen's CS industry is also facing some challenges. One of the biggest issues is that there are too many small and medium-sized enterprises in the industry, which makes it difficult for large firms to compete effectively. Another challenge is that the technology sector in Shenzhen is still underdeveloped, which limits its potential for growth.

To address these problems, Shenzhen is taking several measures to promote the development of the CS industry. For example, the city has launched several initiatives to encourage entrepreneurship and innovation, such as providing financial support for start-ups and offering tax incentives for businesses that invest in R&D. Additionally, the city is working with universities and research institutions to develop new technologies and improve existing ones.

However, despite these efforts, Shenzhen's CS industry remains relatively slow compared to other major cities in China. This may be due to factors such as low demand for construction supplies and lack of skilled labor. To address these issues, the city needs to continue investing in education and training programs, promoting international trade, and improving infrastructure to make the CS industry more competitive.

Overall, while Shenzhen's CS industry has made progress in recent years, there is still much work to be done to ensure its long-term sustainability. The city will need to continue to invest in innovation and competitiveness, while also addressing the challenges posed by the technology sector and other industries within the city.