A containership, the MSC ASYA, returns from a trial voyage after a desulfurization refit and routine repairs at a berth in Zhoushan, East China's Zhejiang Province, on September 26, 2023. In the first half of 2023, the output of Zhoushan's shipbuilding industry increased by 47.2 percent year-on-year, with orders in hand at a five-year high. Photo: cnsphoto