KIEV, July 19 - Two major European natural gas traders may become key suppliers of gas to Ukraine as the national energy company Naftogaz Ukrayiny is preparing to sign more than $8 billion worth of multi-year agreements.

Trafigura Trading (Europe) Sarl and Vattenfall Energy Trading Gmbh have advanced in their talks with Ukraine that Naftogaz board has approved the plan to sign the agreements.