Ronbay Lithium Battery is a transnational enterprise specializing in research and production of lithium battery positive electrode materials, controlled by Beijing Ronbay Investment Holdings Co., Ltd.
Ronbay restructures ownership of its Jae Se cathode plant in Chungju, Korea, to comply with US sourcing requirements. The facility operates 60,000 tonnes of NCM and 10,000 tonnes of LMFP production capacity. This move aims to align with US market demands for battery materials.
Apr 2026Benchmark Mineral IntelligenceNews article
Ronbay supplies **3.05 million tonnes of LFP cathodes** to CATL under a **EUR 14.8 billion contract** covering 2026–2031. The deal marks Ronbay’s expansion into lithium iron phosphate (LFP) production after previously focusing on ternary NMC chemistries. CATL secures long-term supply to support its growing battery manufacturing capacity.
CATL secures a **$17.2 billion** lithium supply deal with Ronbay, covering **3.05 million tons of LFP cathode material** from 2026 to 2031. The agreement, valued at over **RMB 120 billion**, aims to stabilize critical battery component sourcing for the world’s largest EV battery manufacturer. Questions remain about Ronbay’s production capacity to meet demand.
LG Chem files a lawsuit against Ronbay’s Korean subsidiary, Jaesae Neungwon, over alleged infringement of five NCM cathode patents. The claim stems from samples collected at Ronbay’s Chungju plant. The case is pending in Seoul Central District Court.