PipPop also sells its printers overseas. Mr Twaddle's brother runs a very successful printing business in Singapore called UltraPrint. UltraPrint requests that PipPop designs and

manufactures three special commercial printers that will be able to output more than 50,000 sheets of paper per day to keep up with demand. PipPop is very excited about the project, having yet to design and manufacture anything that can print more than 20,000 sheets of paper per day. PipPop is aware of its liability under the Australian Consumer Law, but the contract with UltraPrint specifically states that 'international legal conventions in relation to the sale of goods must be adhered to'. PipPop comes to you because it would like to know the following:

1. Which international convention will apply to its contract for the sale of printers to UltraPrint;

2. Whether that Convention is applicable to the contract;

3. Whether PipPop can exclude the application of the Convention, or at least vary the effect of its provision; and

4. They are also curious as to whether PipPop can take its time to manufacture the printers as the contract did not stipulate the date of delivery.

Advise PipPop. Note: Both Australia and Singapore are treaty members of the relevant Convention.