T/O FUEL = TRIP + CONTINGENCY + ALTERNATE + FINAL RESERVE
CONTINGENCY = 5% of TRIP = (5/100) x 5352 = 268 kg
FINAL RESERVE (JET) = 30 mins holding at 1500ft above the airfield = 3000 kg
T/O FUEL = 5352 + 268 + 4380 + 3000 = 13000 kg