Exclusive-Sinopec steps up Russian oil imports to offset Mideast supply cuts, traders and tracker say

By Chen Aizhu, Siyi Liu and Trixie YapSINGAPORE, Aug 6 (Reuters) - China's state-owned Sinopec Corp, the world's biggest refiner, has ramped up purchases of Far East Russian oil to compensate for Middle East supplies diminished by the Iran war, according to multiple trade sources and ship tracking data.