GEOLIT ENERGY COLTD LTD

APTN Inc. provides hydrothermal and geothermal heating and cooling systems in South Korea, along with solar energy and fuel cell systems. The company also engages in the lithium extraction business, serving domestic customers and public institutions. It was formerly known as APT Neuroscience, Inc. and changed its name to APTN Inc. in August 2025. Founded in 2002, the company is headquartered in Seongnam-si, South Korea.