China’s state-owned enterprise (SOE) hold an important role in their economic system to boost China’s economic growth in the past few years, but it slows down in recent years. Besides the Covid-19 Pandemic, China’s government also still trying to adapt to new policies regarding green manufacturing. Several papers already explained why China’s SOE is important or not for China and compared it with other countries, but did not include the external factors like the changing country policies that affect the SOEs. This research intends to uses that external factors on China’s SOEs in the past 10 years and compares it to Russia. By using a qualitative approach based on secondary data, with the diamond theory of Michael Porter as an analytical tool, can be found that China’s economic growth is slowing down. Not because of the decrease quality of the SOEs, but the policies regarding green manufacturing that affect the SOEs.