Presenters show fresh seaweed during a live videostream in Lianyungang, East China's Jiangsu Province on October 15, 2024, China has seen new progress in the development of its marine economy, which grew steadily in the first half of the year, with a gross output of 4.9 trillion yuan ($678.55 billion), up 5.6 percent year-on-year, official data showed. Photo: VCG