Press Release Alicat awarded BS EN 1090-1 Execution Class 4 (EXC4) Cert We’re delighted to announce that in line with our continued plan for improvement and diversification our Alicat Engineering divisions have successfully obtained BS EN 1090-1 Execution Class 4 (EXC4) for the fabrication of structural steelwork. A fantastic team effort. You can download a copy of our certification here. Find out more Alicat Admin | December 2, 2015