Report Date - The report is dated October 20, 2025 [3] Index Performance Overall Index - The Nanhua Composite Index (NHCI) closed at 2515.75, down 0.24% (-6.15 points) from the previous close of 2521.90 [3] Sector Indexes - The Nanhua Precious Metals Index (NHPMI) dropped 3.42% to 1577.33, the biggest decline among sectors [1][3] - The Nanhua Agricultural Products Index (NHAI) rose 1.28% to 1058.04, the largest gain among sectors [1][3] - The Nanhua Metals Index (NHMI) edged up 0.13% to 6357.97, the smallest gain among sectors [1][3] Theme Indexes - The Economic Crops Index led the gainers, rising 1.24% [1] - The Building Materials Index had the smallest gain, up 0.16% [1] - The Mini Composite Index had the largest decline, down 0.32% [1] - The Coal - Chemical Index had the smallest decline, down 0.17% [1] Single - Variety Indexes - The Pig Index was the top gainer, rising 4.16% [1] - The Silver Index was the biggest loser, down 4.14% [3] Contribution to Index Fluctuations Nanhua Mini Composite Index - Positive contributors include Coke (8.17%), Crude Oil (3.63%), etc [3] - Negative contributors include Cotton (-10.96%), Rebar (-65.30%), etc [3] Nanhua Industrial Products Index - Positive contributors include Coke (21.32%), Natural Rubber (6.89%), etc [3] - Negative contributors include Cotton (-10.96%), Iron Ore (-65.30%), etc [3] Nanhua Composite Index - Positive contributors include Coke (46.28%), Natural Rubber (6.89%), etc [3] - Negative contributors include Cotton (-10.96%), Rebar (-65.30%), etc [3] Nanhua Metals Index - Positive contributors include Coke (18.61%), Natural Rubber (3.40%), etc [3] - Negative contributors include Cotton (-10.96%), Iron Ore (-65.30%), etc [3] Nanhua Energy - Chemical Index - Positive contributors include Fuel Oil (3.56%), Palm Oil (1.51%), etc [3] - Negative contributors include PVC (-9.31%), Methanol (-1.65%), etc [3] Nanhua Agricultural Products Index - Positive contributors include Rapeseed Meal (9.14%), Crude Oil (8.39%), etc [3] - Negative contributors include Glass (-4.73%), PTA (-1.91%), etc [3] Other Information - The calculation of the Nanhua Commodity Index excludes the spread at the time of contract roll - over, reflecting the real return of investing in the commodity system [8] - The contribution is calculated as the product of the change rate and the weight, and the calculation method for contribution is: a certain variety's daily change rate / Σ (each variety's daily change rate) [8]