【市场资讯】 印度尼西亚总统普拉博沃·苏比延多29日表示，已经下令关闭苏门答腊岛邦加-勿里洞省的1000座非法锡 矿，并全面封堵走私通道。 9月30日，伦敦金属交易所（LME）：锡注册仓单2300吨。注销仓单450吨，持平。锡库存2750吨，增 加80吨。 （9月30日）今日全国锡价格一览 表 | 规格 | 报价 | 报价类 | 交货地 | 交易商 | | --- | --- | --- | --- | --- | | | | 型 | | | | 牌号:Sn99.90 云锡 | 278000元/ | 市场价 | 上海 | 重庆广晟有色金属材料有限公 | | | 吨 | | | 司 | | 云锡 牌号:Sn99.90 | 279000元/ | 市场价 | 上海/上海 | 上海普照贸易有限公司 | | | 吨 | | 市 | | | 品名:1#锡锭 ;牌号:Sn99.90 ; | 277250元/ | 市场价 | 上海 | 上海华通有色金属现货市场 | | | 吨 | | | | | 品名:1#锡锭 ;牌号:Sn99.90 ; | 279000元/ | 市场价 | 上海 | 上海物贸中心有色金属交易市 | | | ...

证券研究报告|行业研究周报 [Table_Date] 2025 年 9 月 27 日 降息周期开启，推荐关注稀土磁材、钨、钴等 关键金属 [Table_Title2] 有色-能源金属行业周报 评级及分析师信息 [Table_IndustryRank] 行业评级：推荐 [Table_Pic] 行业走势图 -20% -12% -5% 2% 9% 16% 2023/09 2023/12 2024/03 2024/06 2024/09 有色金属 沪深300 [Table_Summary] 报告摘要： ►印尼政府暂停 39 家镍矿企业，或提升市场镍供应偏 紧预期 截止到 9 月 26 日，LME 镍现货结算价报收 15,035 美元/ 吨，较 9 月 19 日下跌 0.66%，LME 镍总库存为 230,124 吨， 较 9 月 19 日增加 0.74%；沪镍报收 12.15 万元/吨，较 9 月 19 日下跌 0.16%，沪镍库存为 29,008 吨，较 9 月 19 日减少 2.77%；截止到 9 月 26 日，硫酸镍报收 28,600 元/吨，较 9 月 19 日价格上涨 1.60%。根据 SMM，本周，当前有一 ...

Summary of the Conference Call on Tin Sector Industry Overview - The tin market has experienced fluctuations in prices, with a peak of 300,000 CNY on April 2, 2025, driven by delays in the resumption of production in Myanmar and the suspension of operations at the Bisie mine in the Democratic Republic of Congo [2][5] - Tin resources are scarce, with a global reserve-to-production ratio of only 14 years, the lowest among major metals, and a declining trend [2][7] - China holds 23% of global tin reserves, with major production coming from China, Myanmar, and Indonesia [2][8] Key Points and Arguments - **Price Trends**: Tin prices rose until April 2, 2025, due to supply disruptions, but faced a decline after the announcement of U.S. tariffs. Prices have recently shown signs of recovery [2][5][6] - **Cost Projections**: By 2027, the global 90th percentile production cost is expected to rise to $33,800 per ton, a 32% increase from $25,600 per ton in 2022, providing strong support for tin prices [2][7] - **Supply Dynamics**: The processing fees for tin concentrate have reached a four-year low, indicating supply tightness. Domestic and international inventories have started to decrease, particularly due to low overseas supply [2][9] - **Demand Drivers**: China is the largest consumer of tin, accounting for 48% of global consumption. Key demand sectors include solder (50%), semiconductors (40%), and photovoltaics (11%). The semiconductor sector is expected to drive demand growth, especially during the traditional consumption peak in September [2][10] Additional Insights - **Emerging Applications**: New technologies in AI and robotics are expected to increase tin demand through applications in AI computing chips, conductive coatings, and 3D printing materials [5][10] - **Company Performance**: Leading companies like Tin Industry Co. have exceeded performance expectations in the first half of 2025, with future growth anticipated from tailings projects and expansions in production capacity [5][13] - **Market Sentiment**: The overall sentiment remains optimistic regarding tin prices due to tight supply conditions and macroeconomic factors such as potential U.S. interest rate cuts [4][15][16] Conclusion - The tin sector is poised for a positive outlook, supported by fundamental supply-demand dynamics and macroeconomic conditions that favor price increases in the near term [4][15][16]

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The Fed's expected rate cut in September and the time needed for the full resumption of tin mines in Wa State, Myanmar, along with weak downstream demand in sectors like home appliances and solders, may cause Shanghai tin prices to weaken first and then strengthen. Investors are advised to buy on price dips, with attention on support and resistance levels [3]. - The negative basis and monthly spread of Shanghai tin are due to weak domestic demand in sectors such as home appliances and solder materials. Given the expected Fed rate cut in September, partial production suspension for maintenance of domestic refined tin capacity, and the decline in domestic refined tin social inventory, investors are recommended to pay attention to short - term, light - position arbitrage opportunities by going long on the Shanghai tin basis at low prices [6]. - The positive spreads of LME tin (0 - 3) and (3 - 15) contracts, along with the Shanghai - London tin price ratio slightly below the 50% quantile of the past five years, are due to the expected Fed rate cut in September and the relatively low inventory of refined tin at the LME. It is suggested to temporarily watch the arbitrage opportunities of LME tin (0 - 3) and (3 - 15) contract spreads [9]. 3. Summary by Related Contents Supply - side - **Tin Ore**: Namibia's Uis mine's second concentrator started commissioning in late August with a maximum monthly ore - processing capacity of 40,000 tons. In Myanmar's Wa State, the first batch of 40 - 50 mines will resume production after paying fees, with an initial increment of no more than 10,000 metal tons and a 2 - 3 - month transmission period. These factors may lead to a month - on - month increase in domestic tin ore production and a decrease in imports in September [2][20]. - **Recycled Tin**: China's recycled tin production in September may decrease month - on - month [21][23]. - **Refined Tin**: The capacity utilization rate of refined tin in Yunnan and Jiangxi has decreased compared to last week. Yunnan Tin will conduct maintenance on smelting equipment from August 30 for no more than 45 days, resulting in a month - on - month decrease in China's refined tin production and an increase in inventory in September. Indonesia's export volume in September may decrease, which may lead to an increase in China's refined tin imports and a decrease in exports [2][27][31]. Demand - side - **Tin Solder**: China's tin solder capacity utilization rate in September may increase month - on - month, while inventory may decrease [35][37]. - **Photovoltaic Welding Tape**: China's photovoltaic welding tape imports in September may decrease month - on - month, and exports may increase [39][41]. - **Tin - Plated Sheet**: China's tin - plated sheet production, imports, and exports in September may all decrease month - on - month [43][45]. - **Integrated Circuits and Smartphones**: China's integrated circuit and smartphone production in September may increase month - on - month [47][50]. - **Lead - Acid Batteries**: China's lead - acid battery capacity utilization rate has decreased compared to last week [53][56]. Inventory - The inventory of refined tin in the SHFE has increased compared to last week; China's tin ingot social inventory has decreased; the inventory of refined tin at the LME has increased; the total domestic and foreign refined tin inventory has increased [12]. Price and Spread - China's tin concentrate price has increased compared to last week, and tin concentrate imports are still profitable. The daily processing fee of domestic tin concentrate has decreased, indicating a tight supply expectation [16]. - The basis of Shanghai tin is negative and at a relatively low level, and the monthly spread is negative and basically within a reasonable range [4][6]. - The spread of LME tin (0 - 3) contract is positive and at a relatively high level, and the spread of (3 - 15) contract is positive and basically within a reasonable range. The Shanghai - London tin price ratio is slightly below the 50% quantile of the past five years [7][9].

Group 1 - LME prices continue to rise, closing at 34,510, an increase of 1.11% from the previous trading day, marking three consecutive days of gains [1] - The strong performance of tin prices is supported by low global tin inventory and tight supply, with macroeconomic sentiment improving [1][2] - Supply tightness from mining remains a crucial factor for supporting tin prices, with July imports of tin ore in China slightly decreasing compared to June, primarily due to a significant drop in imports from Myanmar [1] Group 2 - China's tin ingot imports are limited, mainly due to profit margins affecting imports, with the current spot import window for refined tin remaining largely closed [2] - The global tin supply recovery is slow, with Indonesian refined tin exports facing challenges, while demand remains relatively stable [2] - Domestic inventory levels are high despite a slight decrease, and weak consumption is unlikely to provide support for prices in the short term [2]

Group 1: Report Summary - The weekly closing price of the main contract of Shanghai Tin was 265,930 yuan/ton, with a weekly decline of 0.33% and an amplitude of 1.72% [7] - Macroscopically, the preliminary value of the US manufacturing PMI in August was 53.3, reaching a new high in more than three years, intensifying inflationary pressures. The Ministry of Industry and Information Technology and other departments will further standardize the competition order in the photovoltaic industry and curb low - price disorderly competition [7] - Fundamentally, although Myanmar's Wa State has restarted the approval of mining licenses, actual ore production will not occur until the fourth quarter. The Bisie mine in Congo plans to resume production in phases, and currently, tin ore processing fees remain at historically low levels [7] - In the smelting sector, the increase in production in July was mainly due to multiple factors such as the resumption of production by some enterprises and the cleaning of intermediate products. However, the shortage of raw materials in the Yunnan production area remains severe, and the waste recycling system in the Jiangxi production area is under pressure, with the operating rate remaining at a low level [7] - On the demand side, due to the traditional off - season, most downstream processing enterprises only maintain rigid demand for production and procurement, and orders are mediocre. Recently, tin prices have fluctuated, and most downstream enterprises make rigid - demand purchases at low prices, with some post - pricing orders [7] - Technically, with low positions and caution from both long and short sides, and support at the lower edge of the range, it is expected to mainly fluctuate and adjust [7] - The recommended strategy is to temporarily wait and see or go long lightly at low prices, focusing on the 265,000 - 270,000 yuan/ton range [7] Group 2: Futures and Spot Market - As of August 22, 2025, the closing price of Shanghai Tin was 265,930 yuan/ton, a decrease of 280 yuan/ton from August 15, a decline of 0.11%. As of August 21, 2025, the closing price of LME Tin was 33,475 US dollars/ton, an increase of 40 US dollars/ton from August 15, a rise of 0.12%. The spot premium remained stable at 400 yuan/ton [7][12] - As of August 22, 2025, the current ratio of tin to nickel prices on the Shanghai Futures Exchange was 2.23, an increase of 0.02 from August 15. As of August 21, 2025, the Shanghai - LME tin ratio was 7.96, a decrease of 0.03 from August 14 [16] - As of August 22, 2025, the trading volume of Shanghai Tin was 48,043 lots, a decrease of 1,832 lots from August 15, a decline of 3.67%. The net position of the top 20 was - 3,051 lots, a decrease of 1,349 lots from August 18 [22][23] Group 3: Industrial Chain - Supply Side - In July 2025, the import volume of tin ore concentrates was 10,277.61 tons, a month - on - month decrease of 13.71% and a year - on - year decrease of 31.58%. From January to July this year, the imported tin ore concentrates totaled 72,406.18 tons, a year - on - year decrease of 32.15% [28] - In July 2025, the output of refined tin was 15,448 tons, a month - on - month increase of 8%. From January to July, the cumulative output of refined tin was 87,175 tons, a year - on - year decrease of 1.34% [29] - On August 22, 2025, the processing fee for 60% tin concentrates was 6,500 yuan/ton, remaining unchanged from August 15; the processing fee for 40% tin concentrates was 10,500 yuan/ton, also unchanged from August 15 [34] - As of August 22, 2025, the average price of 40% tin concentrates was 254,000 yuan/ton, remaining unchanged from August 15; the average price of 60% tin concentrates was 258,000 yuan/ton, also unchanged from August 15 [34] - As of August 22, 2025, the import loss of tin was 6,131.93 yuan/ton, a decrease of 8,314.3 yuan/ton from August 15 [39] - In July 2025, the import volume of refined tin was 2,166.7 million tons, a month - on - month increase of 21.34% and a year - on - year increase of 157.87%. From January to July, the cumulative import of refined tin was 15,110.63 million tons, a year - on - year increase of 47.88%. In July 2025, the export volume of refined tin was 1,672.77 million tons, a month - on - month decrease of 15.23% and a year - on - year decrease of 3.76%. From January to July, the cumulative export of refined tin was 13,463.29 million tons, a year - on - year increase of 32.99% [40] - As of August 21, 2025, the total LME tin inventory was 1,740 tons, a decrease of 90 tons from August 14, a decline of 4.92%. As of August 22, 2025, the total tin inventory was 7,491 tons, a decrease of 301 tons from the previous week, a decline of 3.86%. The tin futures inventory was 7,053 tons, a decrease of 373 tons from August 15, a decline of 5.02% [45] Group 4: Industrial Chain - Demand Side - On August 21, 2025, the Philadelphia Semiconductor Index was 5,603.26, a decrease of 282.23 from August 14, a decline of 4.8%. From January to July 2025, the output of integrated circuits was 29,454,570.7 million pieces, an increase of 5,009,313.4 million pieces compared with the same period last year, an increase of 20.49% [48] - As of June 2025, the output of tin - plated sheets was 110,000 tons, an increase of 10,000 tons from May 2025, a rise of 10%. As of July 2025, the export volume of tin - plated sheets was 206,020.05 tons, an increase of 73,104.23 tons from June, an increase of 55% [51]

Group 1: Market Overview - Since the end of June, the price of tin in Shanghai has fluctuated between 260,000 and 270,000 CNY per ton, with a significant reduction in trading volume and market attention [1] - The volatility index (VIX) for Shanghai tin options has dropped to its lowest level in nearly a year, indicating a lack of market movement [1] Group 2: Supply Factors - The recovery of tin mining in Myanmar is progressing slowly, with actual output expected to be delayed until the fourth quarter due to seasonal rains and other logistical challenges [1] - Tin ore imports in China remain low, with a total of approximately 62,100 tons imported in the first half of 2025, a year-on-year increase of 3.04% [2] - Imports from Africa have increased, compensating for some of the supply gaps from Myanmar, particularly after Alphamin Resources resumed production in the Democratic Republic of Congo [2] Group 3: Smelting and Production Challenges - Smelting enterprises are operating at low capacity due to tight raw material supplies, with the operating rate in Yunnan and Jiangxi provinces at 59.23% as of August 15 [4] - The shortage of tin ore and rising costs have led some smelting companies to consider temporary shutdowns to manage production levels [4] - The recycling of tin scrap has been disrupted, leading to a significant reduction in the supply of secondary materials, which is further constraining refined tin production [4] Group 4: Demand Dynamics - Downstream demand for tin is currently weak, with a decline in orders, particularly in the home appliance sector, as the third quarter is typically a low season for consumption [5] - The semiconductor market is experiencing mixed signals, with overall growth but specific segments facing declines due to trade tensions and economic conditions [8][10] - The photovoltaic sector has seen a significant drop in new installations in June, impacting the demand for tin solder used in solar panels [9] Group 5: Price Outlook - The overall market is characterized by weak supply and demand fundamentals, with tin prices expected to continue fluctuating within a limited range [13] - The low inventory levels in the London Metal Exchange (LME) could lead to increased price volatility, necessitating caution against speculative trading [10][13] - In the medium to long term, as Myanmar's tin supply gradually recovers, the tight supply-demand balance may ease, potentially leading to a downward adjustment in tin prices [13]

1. Report Industry Investment Rating No relevant content provided. 2. Core View of the Report - In July, the tin price fluctuated. Supply is expected to recover significantly in the fourth quarter as mining permits in Myanmar's Wa State have been approved and the Bisie tin mine in Congo (Kinshasa) has resumed operation. However, the waste - tin recycling system in Jiangxi is under pressure, limiting refined output growth. Demand remains weak during the domestic off - season, while overseas demand driven by AI computing power is strong. Inventory increased slightly in July. Overall, there is a short - term supply - demand imbalance, and the tin price is expected to fluctuate weakly in August, with the domestic price ranging from 250,000 - 275,000 yuan/ton and the LME price from 31,000 - 34,000 US dollars/ton [11][12][13] 3. Summary by Directory 3.1 Monthly Assessment and Strategy Recommendation - **Cost end**: Mining permits in Myanmar's Wa State have been approved, and tin ore supply is expected to recover significantly in Q4. In June 2025, China's tin concentrate imports were 11,910 tons, a 11.44% month - on - month and 7.08% year - on - year decrease. From January to June, the total imports were 62,130 tons, a 32.41% year - on - year decrease [12] - **Supply end**: Domestic tin ore imports have increased, relieving the raw material shortage in Yunnan and slightly increasing the operating rate. In Jiangxi, the waste - tin recycling system is under pressure, with secondary material circulation down over 30%, limiting refined output growth. In July 2025, refined tin production was 15,940 tons, a 15.42% month - on - month increase and 0.09% year - on - year increase. From January to June, the cumulative output was 87,200 tons, a 1.95% year - on - year decrease [12] - **Demand end**: Domestic off - season consumption is poor, with low downstream orders and cautious restocking. After the photovoltaic rush - installation ended, orders in East China decreased, and some producers' operating rates declined. In July, the combined production schedule of household appliances decreased by 2.6% year - on - year. Orders in consumer electronics and automotive electronics are weak, while demand from tin - plated sheets and chemicals is stable [12] - **Conclusion**: Tin supply is low, and demand is weak. Due to the ongoing resumption in Myanmar, the tin price may fluctuate weakly in August, with the domestic price range of 250,000 - 275,000 yuan/ton and the LME price range of 31,000 - 34,000 US dollars/ton [12][13] 3.2 Futures and Spot Market No specific analysis content provided, only figures about the basis of Shanghai tin main contract and LME tin premium/discount are presented [19][20] 3.3 Cost End - The short - term supply of tin ore is tight, and processing fees remain low [27] 3.4 Supply End - Domestic refined tin production and its year - on - year changes are presented through figures. The waste - tin recycling system in Jiangxi is under pressure, and the secondary material circulation has decreased by over 30%, affecting refined output [31][33] 3.5 Demand End - **Semiconductor**: China's semiconductor sales growth rate has slightly rebounded, and global semiconductor sales maintain high growth [46] - **PC and smartphone**: In Q2 2025, global PC shipments increased by 8.4% year - on - year, the largest increase since 2022. Mobile phone consumption remains sluggish, with global smartphone shipments expected to increase by 0.6% in 2025 to 1.24 billion units [49] - **Consumer electronics**: The "trade - in" subsidy policy has stimulated some growth, but the demand recovery is limited [52] - **Automobile**: In H1 2025, new - energy vehicle production increased by 40% year - on - year [55] - **Household appliances**: The production of household appliances such as washing machines, air conditioners, refrigerators, and color TVs shows different trends, but overall, the demand is not strong [57][59] - **Photovoltaic**: There was a phased rush - installation in the first five months, with the installation growth rate close to 100% year - on - year, but the actual impact is less than expected [62] - **Other fields**: Tin consumption in the tin - plated sheet (tinplate) field is declining, while PVC production increased slightly in H1 [65] 3.6 Supply - Demand Balance - The supply - demand balance sheet shows data on refined tin production, exports, imports, social inventory, inventory changes, and apparent consumption from January 2023 to June 2025 [70]

Group 1 - The core viewpoint is that with the decline in global tin ore grades and limited supply increments, coupled with rising costs, the tin price is expected to increase due to tight supply and high demand driven by AI development and a recovery in consumer electronics [1][2] - The report recommends specific stocks: Xiyes Co., Ltd. (000960.SZ), Xingye Silver Tin (000426.SZ), and mentions related stocks such as Huaxi Nonferrous (600301.SH) [1] Group 2 - Supply disturbances are ongoing, with limited incremental production from mines; the complete cost of tin mining is projected to rise from approximately $25,581 per ton in 2022 to $33,800 per ton by 2027 [2] - The global tin production is expected to reach 300,000 tons in 2025, reflecting a year-on-year increase of 2% [2] Group 3 - The downstream industry is experiencing high demand, particularly in soldering materials, which account for about 56% of tin consumption; the stabilization of the semiconductor cycle is expected to drive rapid demand for solder [3] - A projected supply gap of 8,300 tons in global refined tin by 2025 highlights the supply-demand imbalance [3] Group 4 - The global monetary environment is becoming more accommodative, with expectations of potential interest rate cuts by the Federal Reserve, which could positively impact asset prices and upstream raw material prices [4] - The inflation rate in the U.S. is gradually approaching the target of 2%, indicating a shift in market expectations for demand [4]

1. Report Industry Investment Rating - No relevant content provided 2. Core Viewpoints of the Report - This week, the main contract of Shanghai Tin fluctuated weakly, with a weekly decline of -0.60% and an amplitude of 2.08%. As of the end of this week, the closing price of the main contract was 267,250 yuan/ton [4]. - Macroscopically, the non - farm payrolls in the US in June exceeded expectations, the unemployment rate unexpectedly dropped, and the Fed's interest - rate cut expectation decreased significantly. Fundamentally, the resumption progress of tin mines in Myanmar's Wa State is uncertain, and Thailand has restricted the import of tin ore. The Bisie mine in Congo plans to resume production in stages, and the tin ore processing fee remains at a historical low. On the smelting side, raw material shortages and cost pressures coexist in Yunnan, and the waste recycling system in Jiangxi is under pressure with a low operating rate. On the demand side, after the rush to install in the photovoltaic industry, the operating rate of some producers has decreased, and the electronics industry has entered the off - season with a strong wait - and - see attitude. Recently, the tin price has corrected, the spot premium has been lowered, and domestic inventories have increased slightly, but overseas inventories continue to decline [4]. - Technically, the positions are stable, and both long and short sides are cautious. Attention should be paid to the adjustment at the 270,000 yuan mark, with the 10 - day moving average providing support [4]. - It is recommended to wait and see for now, with a reference range of 266,000 - 272,000 yuan [4]. 3. Summary by Relevant Catalogs 3.1 Week - on - Week Summary - **Market Review**: The main contract of Shanghai Tin fluctuated weakly this week, with a weekly decline of -0.60% and an amplitude of 2.08%. As of the end of this week, the closing price of the main contract was 267,250 yuan/ton [4]. - **Market Outlook**: Macroeconomic factors include strong US employment data and a decrease in the Fed's interest - rate cut expectation. Fundamental factors involve supply uncertainties from Myanmar and Congo, and weak demand in the photovoltaic and electronics industries. Technically, positions are stable, and attention should be paid to the 270,000 yuan mark [4]. - **Strategy Recommendation**: It is recommended to wait and see, with a reference range of 266,000 - 272,000 yuan [4]. 3.2 Futures and Spot Market - **Price and Premium**: This week, the futures price fluctuated, and the spot premium was lowered. As of July 4, 2025, the closing price of Shanghai Tin was 266,990 yuan/ton, a decrease of 1,560 yuan/ton or 0.58% from June 27. As of July 3, 2025, the closing price of LME Tin was 33,805 US dollars/ton, a decrease of 5 US dollars/ton or 0.01% from June 27 [7]. - **Ratio Changes**: As of July 4, 2025, the current ratio of Shanghai Tin to Shanghai Nickel was 2.19, an increase of 0.05 from June 27. As of July 3, 2025, the Shanghai - LME Tin ratio was 7.94, an increase of 0.03 from June 26 [14]. - **Position Changes**: As of July 4, 2025, the position of Shanghai Tin was 55,224 lots, a decrease of 4,270 lots or 7.18% from June 27. As of June 27, 2025, the net position of the top 20 in Shanghai Tin was -1,309 lots, a decrease of 5,196 lots from June 23 [15][16]. 3.3 Industry Chain 3.3.1 Supply Side - **Tin Ore Import and Refined Tin Production**: In May 2025, the monthly import of tin ore concentrates was 13,448.80 tons, a month - on - month increase of 36.4% and a year - on - year increase of 60.66%. From January to May 2025, the cumulative import was 50,220.48 tons, a year - on - year decrease of 36.41%. In April 2025, the refined tin production was -0.01 million tons, a month - on - month decrease of -0.01%. From January to April 2025, the cumulative refined tin production was 5.98 million tons, a year - on - year increase of 1.7% [21][22]. - **Tin Ore Processing Fee**: On July 4, 2025, the processing fee for 60% tin concentrate was 6,500 yuan/ton, a decrease of 1,000 yuan/ton or 13.33% from June 27. The processing fee for 40% tin concentrate was 10,500 yuan/ton, a decrease of 1,000 yuan/ton or 8.7% from June 27 [25]. - **Refined Tin Import Window**: As of July 4, 2025, the import profit and loss of tin was -6,588 yuan/ton, a decrease of 5,725.45 yuan/ton from June 27. In May 2025, the import volume of refined tin was 2,076.34 million tons, a month - on - month increase of 84.07% and a year - on - year increase of 226.14%. From January to May 2025, the cumulative import was 10,869.42 million tons, a year - on - year increase of 27.52%. In May 2025, the export volume of refined tin was 1,769.65 million tons, a month - on - month increase of 8.12% and a year - on - year increase of 18.01%. From January to May 2025, the cumulative export was 9,739.35 million tons, a year - on - year increase of 39.71% [31][32]. - **Inventory Changes**: As of July 3, 2025, the total LME tin inventory was 2,165 tons, an increase of 50 tons or 2.36% from June 26. As of July 4, 2025, the total tin inventory was 7,198 tons, an increase of 243 tons or 3.49% from last week. As of July 4, 2025, the tin futures inventory was 6,807 tons, an increase of 256 tons or 3.91% from June 27 [38]. 3.3.2 Demand Side - **Philadelphia Semiconductor Index**: From January to May 2025, the integrated circuit production was 193.46 billion pieces, an increase of 23.18 billion pieces or 13.61% compared with the same period last year [41]. - **Domestic Tin - Plated Sheet Export**: As of May 2025, the tin - plated sheet production was 100,000 tons, the same as in April. As of May 2025, the export volume of tin - plated sheets was 173,578.75 tons, an increase of 27,066.23 tons or 18.47% from April [46].