Abstract: Described is a pallet box assembly for receiving and transporting heavy and/or high temperature objects. The pallet box assembly includes a tub and frame configured for receiving the tub. The tub has a bottom plate comprising two lateral side portions and at least one upwardly arc-shaped portion therebetween. Each of the two side portions further has a bent section, the bent section forming a longitudinally extending corner portion of the tub, and a substantially vertical section connecting to the bent section, the substantially vertical section reaching upwards from the bent section to align and connect to the respective side plate, wherein the substantially vertical section and the respective side plates further includes a longitudinally extending connection area.