Hye, Please do Answer in long Essay. Thank you.

Nanocarb Tech 8: (30 agreed to buy organic chemicals 'fob any England port' from Top Tech Industries Ltd. The contract specifies that the shipment date is in May. Examine the rights and obligations of the contractual parties involved in the following situation according to the common law. (a) Top Tech Industries Ltd decided to deliver the goods to London based on the fact that London has frequently been chosen as the port of shipment. However, on 25 April, Nanocarb Tech 8: Co informed Top Tech Industries Ltd that the 'Rocky' will be at Manchester on 10 May. Top Tech Industries Ltd argued that the notice provided by Nanocarb Tech 8: Co was invalid and they have no right to nominate Manchester as the port of loading