Many thanks to an SWLing Post contributor @experimradio who shares the following information from the FCC website:
Experiment authorized by FCC: WJ2XGB, 1800 kHz
https://apps.fcc.gov/els/GetAtt.html?id=202374&x=. [PDF]
Our Texzon Wireless Power™ system allows the Earth itself to be used for clean, safe and efficient transfer of power between any two points on the globe, wirelessly. The system represents a paradigm shift in the science of electromagnetics.