If i tell you how i know, i give away my anonymity so please believe me when i say i know.
KVH is now recommended. BH Rabbi Krems has done an outstanding job getting “farleslicha” mashgichim to review plants and actually conduct regular timely inspections, a must for providing proper hashgocha.
“Cup-k” is NOT recommended. One must wonder if the name was chosen because it sounds so much like Kof-K – which is obviously reliable.
cRc – Chicago Rabbinical Council – is recommended.
KF – is acceptable.
Tri-k remains UNacceptable.
SSK aka Kosher Technical Konsultants out of Philly, is NOT accepted by any reputable agency. With apologies to Reb Doniel, NO ONE allows their product.