Degradable lunch boxes are used at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province, April 11, 2023. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Li Xin)

A staff member introduces a kind of rapidly degradable material at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province, April 11, 2023. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Li Xin)

Staff members show degradable bags at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province, April 11, 2023. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Li Xin)

A staff member introduces a kind of rapidly degradable material to journalists at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province, April 11, 2023. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Li Xin)

A new energy bus is displayed at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province, April 11, 2023. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Zhang Liyun)

This photo taken on April 11, 2023 shows an Earth Friendly Area displaying products with recycled packages at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Fan Yuqing)

A Tesla car is displayed at the third China International Consumer Products Expo (CICPE) in Haikou, capital city of south China's Hainan Province, April 11, 2023. Green and low-carbon production and consumption concepts can be found in many exhibition areas of the third CICPE. (Xinhua/Fan Yuqing)