This photo taken on March 2, 2023 shows a cargo ship at a shipbuilding enterprise in Yuanjiang, central China's Hunan Province. Since this year, shipbuilding enterprises in Yuanjiang have been speeding up production, aiming for a good start in the first quarter. (Xinhua/Chen Zhenhai)

A worker marks the hull of a ship at a shipbuilding enterprise in Yuanjiang, central China's Hunan Province, March 1, 2023. Since this year, shipbuilding enterprises in Yuanjiang have been speeding up production, aiming for a good start in the first quarter. (Xinhua/Chen Zhenhai)

A worker carries out welding operations at a shipbuilding enterprise in Yuanjiang, central China's Hunan Province, March 2, 2023. Since this year, shipbuilding enterprises in Yuanjiang have been speeding up production, aiming for a good start in the first quarter. (Xinhua/Chen Zhenhai)

A worker carries out welding operations at a shipbuilding enterprise in Yuanjiang, central China's Hunan Province, March 1, 2023. Since this year, shipbuilding enterprises in Yuanjiang have been speeding up production, aiming for a good start in the first quarter. (Xinhua/Chen Zhenhai)

This aerial photo taken on March 2, 2023 shows cargo ships at a shipbuilding enterprise in Yuanjiang, central China's Hunan Province. Since this year, shipbuilding enterprises in Yuanjiang have been speeding up production, aiming for a good start in the first quarter. (Xinhua/Chen Zhenhai)