Apro

Apro makes the machines that charge and discharge lithium-ion battery cells during manufacturing, a step called the 'formation' process that activates each cell before it goes into an electric vehicle or smartphone.

Its customers are lithium-ion battery makers, and it sits in the supply chain as an equipment provider to that industry. Listed on KOSDAQ, Korea's tech and small-cap board, the company earns the bulk of its revenue from two core products: standard formation charger-dischargers and a high-temperature, high-pressure variant it was first in Korea to bring to mass production.