Non-Lithium Cost Signal
Hunan Yuneng, the world's largest LFP cathode producer by volume (~30% global share, primary supplier to CATL and BYD), announced July 16 it will raise processing fees across all LFP product series by RMB 2,000/MT effective August 1. The driver cited in Hunan Yuneng's price-adjustment letter is iron phosphate, which the company says now accounts for over 70% of LFP processing fees and has risen from approximately RMB 10,000/MT at the start of 2026 to RMB 15,000/MT. That 50% YTD increase traces to sulphur, phosphoric acid, and ferrous sulphate, an upstream chain with zero lithium carbonate exposure.
SMM data shows the average LFP cathode material price in June at RMB 61,113/MT, up 19.34% YTD and over 80% YoY. Lithium carbonate, meanwhile, softened to approximately RMB 152,000/MT as of InfoLink's July 15 assessment, down roughly 5% week-on-week. The divergence matters for anyone using lithium carbonate as a directional proxy for LFP cell costs: the non-lithium cost stack is moving hard enough in the opposite direction to offset lithium softness at the cathode level, and Hunan Yuneng's fee increase will transmit that pressure downstream.
Hunan Yuneng's letter claims July industry operating rates reached 90% with high-end capacity constrained. That is the company's own characterization in a document designed to justify a fee increase. No independent confirmation from a third-party source is available as of publication.
Five Forces Under the China Cell Floor
Chinese LFP ESS cell spot is still falling. The rate of decline is compressing. InfoLink's July 15 assessment: RMB 0.370/Wh. SMM's July 10 read: $47.7/kWh average. The sources disagree on level but agree on trajectory, and the trajectory's second derivative has turned. Five independent forces now hold the floor — lithium stabilization removing the deflation tailwind, iron phosphate costs up 40%+ in six months, a VAT export rebate phaseout adding ~9% to export pricing by January, prospective GB38031 compliance costs, and system-integration overhead that refuses to deflate with cells. Four of five are stable or strengthening. Procurement models still carrying a continued-deflation assumption are working against the data.
Five Forces Under the China Cell Floor
Chinese LFP ESS cell spot is still falling. The rate of decline is compressing. InfoLink's July 15 assessment: RMB 0.370/Wh. SMM's July 10 read: $47.7/kWh average. The sources disagree on level but agree on trajectory, and the trajectory's second derivative has turned. Five independent forces now hold the floor — lithium stabilization removing the deflation tailwind, iron phosphate costs up 40%+ in six months, a VAT export rebate phaseout adding ~9% to export pricing by January, prospective GB38031 compliance costs, and system-integration overhead that refuses to deflate with cells. Four of five are stable or strengthening. Procurement models still carrying a continued-deflation assumption are working against the data.
Distributed Demand, Not Leader Discipline, Holds China's Cell Price Floor Through June
China produced 206.0 GWh of batteries in June, up 59.5% YoY. Domestic installations grew 31.5%, ESS sales 67.5%, exports 48.7%. No single channel matched production's rate. Yet the proxy absorption gap compressed by 4.6 GWh across Q2, with combined demand outrunning output at the margin even as production hit a monthly record. The floor at RMB 0.367/Wh has genuine demand under it. It does not have margin of safety. Three individually insufficient channels sum to sufficiency, and if any one stalls, the surplus math reverses in a single print.
Distributed Demand, Not Leader Discipline, Holds China's Cell Price Floor Through June
China produced 206.0 GWh of batteries in June, up 59.5% YoY. Domestic installations grew 31.5%, ESS sales 67.5%, exports 48.7%. No single channel matched production's rate. Yet the proxy absorption gap compressed by 4.6 GWh across Q2, with combined demand outrunning output at the margin even as production hit a monthly record. The floor at RMB 0.367/Wh has genuine demand under it. It does not have margin of safety. Three individually insufficient channels sum to sufficiency, and if any one stalls, the surplus math reverses in a single print.
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