Group 1 - The core point of the article highlights a significant decrease in China's nickel sulfate imports in October 2025, with a month-on-month reduction of 7,478 tons, representing a decline of 25.3%, while year-on-year, there was an increase of 11,756 tons, marking a growth of 114.1% [1] - The total cumulative import volume of nickel sulfate for China from January to October 2025 reached 211,776 tons, reflecting a year-on-year increase of 16.7% [3] - The primary sources of nickel sulfate imports in October 2025 included Indonesia (13,748 tons), South Korea (1,793 tons), and Finland (5,133 tons), indicating a notable reduction in imports mainly from Indonesia [1]