The global supply and demand situation for steel plate was influenced by several factors. On one hand, increasing industrialization and infrastructure development in emerging economies such as China and India were driving demand for steel plate. On the other hand, trade tensions between major steel-producing countries, such as the United States and China, resulted in tariffs and quotas affecting steel exports and imports.

Additionally, the COVID-19 pandemic impacted the steel industry in various ways. Demand for steel decreased due to slowdowns in construction and manufacturing activities, while disruptions in supply chains and production caused supply shortages.

Overall, the steel plate market was characterized by volatility in prices and supply/demand imbalances. However, it is important to note that this information might be outdated and the current market situation may have changed.