AGREEMENT NO. 52.01.030:  REPAIR OF SULPHUR STORAGE TANK (35 MTR. DIA, 8 MTR. HEIGHT) AT RUWAIS REFINERY WHICH INCLUDES DESLUDGING, CLEANING, MAJOR REPAIR WORKS SUCH AS BOTTOM PLATE REPLACEMENT, SHELL PLATE REPLACEMENT AND ROOF REPLACEMENT BY TANK JACK-UP METHOD (A RECONSTRUCTION WORK)