A worker checks cables at the Thai-Chinese Rayong Industrial Zone in Rayong province, Thailand, on Dec. 29, 2021. The Thai-Chinese Rayong Industrial Zone, which is located at the east coast of Thailand, has attracted more than 170 enterprises. (Xinhua/Wang Teng)

Aerial photo taken on Dec. 29, 2021 shows the Thai-Chinese Rayong Industrial Zone. The Thai-Chinese Rayong Industrial Zone, which is located at the east coast of Thailand, has attracted more than 170 enterprises. (Xinhua/Wang Teng)

A worker checks tube bundles at the Thai-Chinese Rayong Industrial Zone in Rayong province, Thailand, on Dec. 29, 2021. The Thai-Chinese Rayong Industrial Zone, which is located at the east coast of Thailand, has attracted more than 170 enterprises. (Xinhua/Wang Teng)

A worker is seen at a warehouse of the Thai-Chinese Rayong Industrial Zone, in Rayong province, Thailand, on Dec. 29, 2021. The Thai-Chinese Rayong Industrial Zone, which is located at the east coast of Thailand, has attracted more than 170 enterprises. (Xinhua/Wang Teng)

A worker checks refrigerators at the Thai-Chinese Rayong Industrial Zone in Rayong province, Thailand, on Dec. 29, 2021. The Thai-Chinese Rayong Industrial Zone, which is located at the east coast of Thailand, has attracted more than 170 enterprises. (Xinhua/Wang Teng)