Chinese refiners have bought up all crude oil cargoes set to load from Russia’s Far East port of Kozmino in August weeks earlier than usual, traders with knowledge of the market told Bloomberg on Friday, as risks to Middle Eastern supply spiked this week with attacks on tankers in the Red Sea. China has been snapping up the cargoes at a faster pace, which raised the price of the Russian Far Eastern crude blend ESPO to a discount of just $1 per barrel to the price of ICE Brent, up from a discount of between $3 and $4 per barrel two weeks ago,…