Actually, disregard the above, I suck cocks and didn't even bother trying to look it up. JR Freight does keep books. Though amusingly, they haven't updated the English page in 6 years
They have some serious debts (holdover from JNR era debt distribution among the JRs?), but they're declining slowly while earnings stay relatively flat. In the long term, it could either ever so slowly transition to a break even or mild profit, or it could be a super slow death spiral
http://www.jrfreight.co.jp/common/pdf/kessan/h27_kessan.pdf 