Both are possible. There is a slight difference in emphasis. If you use "For this reason", the focus of the sentence is more on why you have hired the trucks.
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Both are possible. There is a slight difference in emphasis. If you use "For this reason", the focus of the sentence is more on why you have hired the trucks. If you use "For this", the focus of the sentence is more on how you are going to deal with the order. I don't understand what you mean by "raw materials", though. Are these "raw materials" in fact the rice? The way you have written it, i