July 18 (Reuters) - Largo Resources Ltd LGO.TO
* Mou summarizes principal terms upon which co and vionx will continue discussions that may lead to supply by largo of vanadium electrolyte
* Largo resources announces non-binding m.o.u. With vionx energy corporation Source text for Eikon: ID:nCNWQbRwva Further company coverage: LGO.TO
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