DEPA, the Greek Public Gas Corporation, has instructed Kelemenis & Co to represent the company in its dispute with ELFE, the largest fertilizers producer of the country, over the 110-million debt that ELFE owes to DEPA. ELFE’s operations have become increasingly controversial following its acquisition by Lavrentis Lavrentiadis, a Greek businessman who has been tied to the financial scandals of Proton Bank, pharmaceutical company Alapis and chemicals company Neochimiki.