Diamond EHC is an early stage investor on the energy market segment, mainly operating through business joint ventures with fi ... rst class worldwide companies. The company were invested in traditional players that formed our strengthen portfolio: EPC company (joint stock company), Private Trader of oil and its derivatives, gas and other energy products & Austrian based Private Investment Holding company focusing on the natural resources sector. Our strengthen portfolio has companies with more than 60 years of operations , that carried out work in more than 30 countries on more than 100 power-supply programs and more than 700 different projects like factories, hotels, tourist complexes, hospitals, bridges and roads. read more