The news comes as the owners of Kilroot announced plans to install clean-up equipment at the plant near Carrickfergus at a cost of Â£35 million.
Kilroot has an annual profit margin of £35 million.
( z1 margin :ARG2-of ( z2 profit :ARG0 ( z3 company :name ( z4 name :op "Kilroot" ) ) ) :quant ( z5 rate-entity :ARG1 ( z6 monetary-quantity :quant 35000000 :unit ( z7 pound ) ) :ARG2 ( z8 temporal-quantity :quant 1 :unit ( z9 year ) ) ) )