山东沂南：新能源产业激活县域发展新引擎

Group 1 - The core viewpoint of the article highlights the focus of Linyi City's Yinan County on developing the new energy industry chain, emphasizing innovation, enterprise importance, and cluster dynamics for high-quality economic growth [1] - From January to September, 42 industrial enterprises in the new energy industry chain in Yinan County achieved an output value of 4.02 billion yuan, representing a year-on-year growth of 21.33% [1]