Energy Innovation Group Ltd. (EIG) is a Korean-based ISO/TS16949 certified manufacturer of large format prismatic pouch lithium ion battery cells and modules for the transportation, military, and stationary telecom and grid-scale energy storage. 

EIG’s headquarters and manufacturing plant are located in Cheonan, South Korea, with a sales office in Silicon Valley, California.

EIG specializes in the design, development, and production of proprietary Lithium Titanate Oxide (LTO), Nickel Cobalt Manganese (NCM), and Iron Phosphate (LFP) cells and modules under both the EIG label as well as private label manufacturing arrangements.

EIG is a wholly owned subsidiary of DRB Holding Co., Ltd. , a major Korean automotive and industrial tier-1 supplier. Founded in 1945 with the original name of Dongil Chemical Industrial Company, and then eventually Dongil Rubber Belt, DRB has growing revenues of more than USD$700M in 2013 from nine regional offices and five manufacturing plants worldwide, including Korea, China, and Slovakia.