碳酸锂：仓单大幅增加，震荡运行

Report Summary 1. Report Industry Investment Rating - Not provided in the given content 2. Core View - The report shows that lithium carbonate is oscillating with a significant increase in warehouse receipts, and its trend strength is rated as neutral [1][3] 3. Summary by Relevant Catalogs 3.1 Fundamental Tracking - Futures Contracts: For the 2509 contract, the closing price was 68,920, with a decrease of 4,200 compared to T - 5; the trading volume was 247,898, a decrease of 757,497 compared to T - 5; the open interest was 207,770, a decrease of 170,702 compared to T - 5. For the 2511 contract, the closing price was 69,040, a decrease of 2,380 compared to T - 5; the trading volume was 288,386, a decrease of 39,459 compared to T - 5; the open interest was 215,949, an increase of 47,213 compared to T - 5 [1] - Warehouse Receipts: The warehouse receipt volume was 12,603, an increase of 5,998 compared to T - 1 and 327 compared to T - 5 [1] - Basis: The basis between spot and 2509 contract was 2,430, and between spot and 2511 contract was 2,310 [1] - Raw Materials: The price of lithium spodumene concentrate (6%, CIF China) was 760, with a decrease of 45 compared to T - 5; the price of lithium mica (2.0% - 2.5%) was 1,710, a decrease of 95 compared to T - 5 [1] - Lithium Salts: The price of battery - grade lithium carbonate was 71,350, a decrease of 2,550 compared to T - 5; the price of industrial - grade lithium carbonate was 69,250, a decrease of 2,450 compared to T - 5 [1] 3.2 Macro and Industry News - SMM's battery - grade lithium carbonate index price was 71,127 yuan/ton, a daily increase of 102 yuan/ton; the average price of battery - grade lithium carbonate was 71,350 yuan/ton, unchanged from the previous workday; the average price of industrial - grade lithium carbonate was 69,250 yuan/ton, also unchanged [2] - On August 4, 2025, Albemarle's auction of 15,732 tons of chemical - grade lithium spodumene concentrate from the Wodgina mine in Australia ended at a price of 810 US dollars/ton (SC6/CIF price) [3] - Yichun Ecological Environment Bureau approved the first - phase project of Fengxin Jiuling Lithium Industry's annual production of 50,000 tons of lithium - ion battery materials on July 30. The project, with a total investment of 1 billion yuan, will build a production line with an annual output of 20,000 tons of battery - grade lithium carbonate in the first phase, and achieve co - production of rubidium and cesium salts and by - product recovery [3] 3.3 Trend Intensity - The trend intensity of lithium carbonate is 0, indicating a neutral outlook [3]