Stefano's Tweets, page-373

Interesting extract from the U.S. Geological Survey, Mineral Commodity Summaries, January 2020

"Helium resources of the world, exclusive of the United States, were estimated to be about 31.3 billion cubic meters (1.13 trillion cubic feet). The locations and volumes of the major deposits, in billion cubic meters, are Qatar, 10.1; Algeria, 8.2; Russia, 6.8; Canada, 2.0; and China, 1.1. As of December 31, 2018, the BLM had analyzed about 22,300 gas samples from 26 countries and the United States, in a program to identify world helium resources."

Potentially Renergen has as much helium as Qatar but more likely something around 120bcf of helium is my guess. So the US by the end of 2018 had scoured the globe with 22,300 samples analysed given its status as a critical element and then in 2019 provided the US OPIC loan to Renergen showing how critical Renergen appears to be to the US.