Tangible property is delivered or shipped to a purchaser within Maine if:
The term "purchaser within Maine" includes the ultimate recipient of the property if the taxpayer, at the direction of the purchaser, delivers to or has the property shipped to the ultimate recipient within Maine.
When property being shipped by a seller from the state of origin to a consignee in another state is diverted to a purchaser in Maine, the sales are in Maine.
18-125 C.M.R. ch. 801, § 06