国泰君安期货锡周报-20250831

1. Report Industry Investment Rating - The report does not mention the industry investment rating. 2. Core Viewpoints of the Report - This week, the tin price rose significantly with a weekly increase of 4.7%, but dropped by 2.17% on Friday night, closing at 272,590 yuan/ton. The news of Yunnan Tin's shutdown for maintenance on August 30, 2025, which is expected to last no more than 45 days, affected market sentiment. Social inventory decreased domestically, while LME inventory overseas increased by 270 tons. Tin ore imports in July decreased compared to June, and the production of tin ingots is expected to remain flat or increase slightly in August. With a bullish macro - environment, approaching peak demand season, and limited tin ingot imports from Indonesia, the tin price may return to around 270,000 yuan and fluctuate at a high level in the short term [5]. 3. Summary by Directory 3.1 Trading Aspect (Price, Spread, Inventory, Funds, Transaction, Position) 3.1.1 Spot - This week, the LME 0 - 3 premium was 175 US dollars/ton, and the domestic spot premium was 600 yuan/ton. Overseas premiums declined, with premiums in Baltimore and Taiwan narrowing [11][14]. 3.1.2 Spread - This week, the tin monthly structure changed from the previous B structure to the C structure [18]. 3.1.3 Inventory - Domestically, social inventory decreased by 117 tons, while futures inventory increased by 241 tons. LME inventory increased by 225 tons, and the proportion of cancelled warrants dropped to 11.44% [21][26]. 3.1.4 Funds - As of this Friday, the settled funds for Shanghai tin were 207,660 million yuan, and the funds flowed in over the past 10 days [30]. 3.1.5 Transaction and Position - This week, the trading volume and position of Shanghai tin decreased slightly, while the position increased slightly. The trading volume of LME tin decreased slightly, and the position continued to decline [32][38]. 3.1.6 Position - to - Inventory Ratio - This week, the position - to - inventory ratio of Shanghai tin decreased slightly [43]. 3.2 Tin Supply (Tin Ore, Refined Tin) 3.2.1 Tin Ore - In May 2025, the production of tin concentrate was 5,961 tons, a year - on - year decrease of 7.56%. In July 2025, imports were 10,278 tons, a year - on - year decrease of 31.79%, and a cumulative year - on - year decrease of 32.32%. This week, the processing fee for 40% tin ore in Yunnan remained at 12,000 yuan/ton, while the processing fee for 60% tin ore in Guangxi, Jiangxi, and Hunan dropped to 8,000 yuan/ton. The profit - and - loss level of tin ore imports rebounded slightly [47][48]. 3.2.2 Smelting - In July 2025, the domestic tin ingot production was 15,940 tons, a year - on - year increase of 0.09%. This week, the combined operating rate of Jiangxi and Yunnan provinces was 59.64%, a slight increase from last week [53][55]. 3.2.3 Import - In July 2025, domestic tin ingot imports were 2,167 tons, exports were 1,673 tons, and net imports were 393 tons. The tin ingots imported from Indonesia to China were 812 tons. The latest import profit - and - loss was - 16,622 yuan/ton [61]. 3.3 Tin Demand (Tin Materials, End - Users) 3.3.1 Consumption - In July 2025, the apparent consumption of tin ingots was 16,434 tons, and the actual consumption was 15,572 tons [65]. 3.3.2 Tin Materials - This week, the downstream processing fee decreased slightly. The monthly operating rate of solder enterprises in April decreased slightly. The production and sales of major tin - plated sheet enterprises in May decreased slightly [68]. 3.3.3 End - User Consumption - In July 2025, the production of end - user products varied. The performance of home appliances was weak, with a general month - on - month decline. The production of integrated circuits, mobile phones, and computer systems decreased month - on - month and was at a historically low level. The consumption of home appliances and new energy also decreased month - on - month. This week, the Philadelphia Semiconductor Index rebounded, in line with the performance of the tin price [76][78][82].