I am interested re the tested fuel f/p of -57. That seems unusual for traditional jet fuel.
Tree, thats because it isnt 'traditional' Jet fuel like Jet A (f/p -40C), Jet A1 (f/p -47C). The Chinese call it Jet fuel number 3, it used to be called RP-3 and it meets or exceeds the spec of Jet A-1 for every parameter as far as I am aware. I am not sure what the historical reason is but its always been that way as long as I've been around fuels. Interestingly many of the chinese and soviet higher freeze point fuels also have lower flash points. But I dont think thats relevant in the current case.