Subscribe?

you will notice that as you progress through the various levels the highlighted bar will move to highlight different sets of forward transactions. These forward transactions are for specific products with a minimum specific quality to be delivered by a specific time You can select the companies name who requires the product to set your possible supply. The price per supply band will differ (Ie the more you supply the higher price you get) You can also earn a quality level bonus by supplying a higher level quality than the company needs.

But be aware failure to match the criteria ie quality, quantity or time (Always the WU before orders due) results in a very high penalty.

so in short select the company set your supply promise and then subscribe

i hope this helps