HXPN, Inc. announces Closing of Majority Interest Investment in Sheppard Pool Energy, LLC; execution and funding of OPUS AMDG, Inc Service Agreement DALLAS, Texas, April 18, 2022 (GLOBE NEWSWIRE) -- HXPN, Inc. (“HXPN” or “the Company”) (OTCPINK: HXPN), an emerging technologies and mineral resources development company, today announced that it...