Group 1: Report Industry Investment Rating - No relevant content provided Group 2: Core Viewpoints of the Report - The domestic zinc fundamentals have not changed significantly recently. Although the zinc concentrate processing fee has been adjusted down, smelters are still profitable, and the supply of refined zinc continues to increase. The overseas inventory has slightly increased but remains at a relatively low level. Coupled with the impact of the capital side, the LME zinc price is strong. The pattern of strong overseas and weak domestic markets has further intensified, and the export profit has further widened. The zinc price in Shanghai is likely to rise rather than fall, and one can try to go long at low prices. [4] - The traditional peak season for zinc consumption is coming to an end, and domestic zinc consumption is expected to gradually weaken. However, attention should still be paid to the boosting effect of domestic policies on consumption. [4] - The export window has opened, and some domestic zinc ingots have been delivered to warehouses in Southeast Asia. The export volume and frequency need to be monitored. If there is a large - scale delivery overseas, one should stop profit in time for the previous operation of shorting SHFE and going long LME, and change the strategy to go long SHFE and short LME in advance. [4] Group 3: Summary by Relevant Catalogs Chapter 1: Comprehensive Analysis and Trading Strategies Trading Logic - In the mining end, domestic smelters have been continuously snapping up domestic zinc concentrates, leading to a continuous decline in domestic zinc concentrate processing fees. Imported ore is still at a loss, but due to the continuous decline in domestic zinc concentrate processing fees, imported zinc concentrate traders have also reduced their quotes. [4] - At the smelting end, the recent decline in zinc prices and domestic TC has narrowed smelting profits. However, the by - product revenue is still considerable, and smelters' profits are still around 1,000 yuan/ton, with the smelting start - up rate remaining high. In October, although some domestic smelters carried out maintenance, some previously - maintained smelters resumed production, and the overall domestic refined zinc output may increase significantly. [4] - In terms of consumption, the traditional peak season for zinc consumption is passing, and domestic zinc consumption is expected to gradually weaken. [4] - Inventory data shows that as of October 23, the total inventory of SMM seven - region zinc ingots was 162,100 tons, a decrease of 3,200 tons compared with October 20 and a decrease of 600 tons compared with October 16. The LME zinc inventory on October 23 was 37,600 tons, an increase of 275 tons compared with October 17. [4] Trading Strategies - Unilateral: One can try to go long on zinc in Shanghai at low prices. [4] - Arbitrage: One can pre - arrange the operation of going long SHFE and shorting LME according to the export situation. [4] Chapter 2: Market Data - No specific data analysis content provided in the given text, only some market data indicators such as spot premium, absolute price and monthly spread, trading volume and open interest of Shanghai zinc, social inventory, etc. are listed. [6][12][15] Chapter 3: Fundamental Data Zinc Ore Supply - Global zinc concentrate production from January to August 2025 was 8.2907 million tons, a year - on - year increase of 593,700 tons or 7.71%. In July, global zinc concentrate production was 1.0976 million tons, a year - on - year increase of 127,500 tons or 13.14%. [28] - In September 2025, SMM's domestic zinc concentrate production was 314,500 metal tons, a month - on - month decrease of 8.79% and a year - on - year decrease of 9.99%. In October, it is expected to be 300,900 metal tons, a month - on - month decrease of 4.32%. [28] - As of September, domestic smelter raw material inventory increased by 10.63 days to 26.3 days compared with the same period last year. Recently, although the raw material inventory of smelters has decreased month - on - month, it is still above the safety production margin. [28][42] - The inventory of zinc concentrates at major domestic ports increased by 10,800 tons to 391,400 tons month - on - month. [4][28] Zinc Ore Import - From January to September 2025, the cumulative import volume of zinc concentrates was 4.008 million tons (physical tons), a cumulative year - on - year increase of 40.49%. In September, the import volume of zinc concentrates was 505,400 tons (physical tons), a month - on - month increase of 8.15% and a year - on - year increase of 24.94%. [38] - In October, considering the seasonal reduction of mines in the fourth quarter and the strong production enthusiasm of smelters driven by profits, the demand for zinc ore is high. However, the loss of imported zinc ore in October has further expanded compared with September, and domestic smelters are actively buying domestic zinc ore instead of imported ones. The spot import of imported zinc ore is light, and the import volume in October is expected to have no further room for growth. [30] Domestic Ore Total Supply - Overall, the supply of domestic ore has decreased, and there is an expected reduction in imported zinc concentrates. The domestic zinc concentrate supply in October is expected to decrease. [41] Zinc Ore Processing Fee - The monthly processing fee for Zn50 domestic zinc concentrates in November is 3,000 yuan/ton; on October 24, the weekly processing fee for Zn50 domestic zinc concentrates was reduced by 150 yuan to 3,250 yuan/metal ton, and the SMM imported zinc concentrate index decreased by $8.5/ton dry to $110.25/ton dry month - on - month. [46] - Currently, the profit of domestic mines is about 4,220 yuan/ton, and domestic smelters' production loss is about 700 yuan/ton (excluding by - product revenue). Including by - product revenue, smelters' profit is about 1,000 yuan/ton. [47] Global Refined Zinc Production - From January to August 2025, global refined zinc production was 9.1482 million tons, a year - on - year increase of 12,700 tons or 0.14%; global refined zinc consumption was 8.9683 million tons, a year - on - year increase of 16,800 tons or 0.19%. From January to August 2025, the global refined zinc surplus was 179,900 tons. [51] - In August 2025, global refined zinc production was 1.2269 million tons, a year - on - year increase of 8.35%. The global refined zinc demand was 1.179 million tons, a year - on - year increase of 0.12%. The global refined zinc surplus was 47,900 tons. [51] Domestic Refined Zinc Supply - In September 2025, the operating rate of domestic refined zinc enterprises was 92.32%, a month - on - month decrease of 4.02%. By scale, the operating rate of large - scale refined zinc enterprises was 93.15%, a month - on - month increase of 0.06%; that of medium - scale refined zinc enterprises was 94.31%, a month - on - month decrease of 10.23%; and that of small - scale refined zinc enterprises was 84.5%, a month - on - month decrease of 1.45%. [54] - According to SMM data, the SMM China refined zinc output in September decreased by 26,100 tons or 4.17% month - on - month to 600,100 tons, a year - on - year increase of 20.19%. The cumulative output from January to September was 5.069 million tons, a year - on - year increase of 8.85%. It is expected that the domestic refined zinc output in October 2025 will be 622,700 tons, a month - on - month increase of 22,600 tons or 3.77%, and a year - on - year increase of 22.54%. The cumulative output from January to October 2025 is expected to be 5.692 million tons, a year - on - year increase of 10.2%. [54] Zinc Ingot Import and Export - From January to September 2025, the cumulative import volume of refined zinc was 258,200 tons, a cumulative year - on - year decrease of 19.27%. In September, the import volume of refined zinc was 22,700 tons, a month - on - month decrease of 3,000 tons or 11.61%, and a year - on - year decrease of 57.03%. In September, the export volume of refined zinc was 2,500 tons, with a net import of 20,200 tons. [57] - In October, the domestic refined zinc output is expected to increase, but considering that the import window is basically closed, the import of zinc may decrease. The domestic refined zinc supply may increase slightly month - on - month, and attention should be paid to the export situation. [58]