HY-LOK CORPORATION revenue for the last year amounted to 170.80 B KRW, the most of which — 188.84 B KRW — came from its highest performing source at the moment, Mechanical Equipment Fittings, Flange Valves, Unions, and Nissan, the year earlier bringing 182.85 B KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought HY-LOK CORPORATION 137.50 B KRW, and the year before that — 136.75 B KRW.