Oxidised polyethylene wax (E914)
No. Oxidised polyethylene wax (E914) is not one of the markers Open Food Facts uses to classify a food as processed or ultra-processed, so on its own it doesn't raise a product's NOVA group.
What it is
A food additive authorised for industrial food production.
A product that contains it can still be ultra-processed for other reasons: 8 of the 8 products here that contain oxidised polyethylene wax (E914) (100%) are in group 4 because of other ingredients or additives.
Where it turns up
Oxidised polyethylene wax (E914) appears in 8 of the 40,000 products on this site (0%).