Entry comments: Global Critical Materials Provider Focused on High-Growth Industries in Isotope and Helium Markets. Renergen Expected to Benefit from $750 million of Committed Debt Funding from the U.S. government's Development Finance Corporation ( U.S. DFC) and Other Lenders to Expand Helium Plant Production Capacity. ASP Isotopes Inc. (Nasdaq: ASPI) has successfully closed its previously announced acquisition of Renergen Limited