Yes. Well... Kazakhstan is the largest chunk of "Soviet Central Asia as was," so the one whose railway network is most likely to be in the market for hundreds of high-horsepower units: I think the K. government's dream is that they will profit from having the railroad equivalent of the old "Silk Road" at a time of growing China-Europe trade. But I had a moment of panic about my memory!
I think GE has had previous locomotive orders from Egypt, but I think this is their biggest so far, and their first for units with the power of current U.S. domestic models.
Final: I honestly don't know whether these are cowl or boxcab units. Most railways outside North America want lighter-weight rolling stock the U.S., and a double-cab hood unit is already heavy. A cowl (= full-width, non-load-bearing, hood) just makes it heavier, but if the side walls are load bearing the frame can be lighter than on a hood unit. Compare domestic passenger units: the B32-8WH had to be given a ridiculously small fuel tank to keep the weight under 265,000 pounds even though it has only a 12-cylinder engine. The first series Genesis units-- "monococque" carbody, not cowl units-- managed to be lighter with a 16-cylinder FDL. (Weights: 264,500 for B32-8WH, 262,800 for first Genesis (source: Greg McDonell, "Field Guide to Modern Diesel Locomotives," Kalmbach 2002)) So railways in places like Egypt (whose previous GE locomotives were export models) and Kazakhstan (whose Soviet-era power had lower axle loads than U.S.) might have asked for box cabs. But I don't know.