Click on the "Exchange".

To sell your product, click on the "Add lot for sale", then click on the item that you want to sell and then click "Urgant Sale."

Set the amount of goods for sale and PUSH "Sell"

Notes: You can also put goods up for auction.

To do this, Check the "Enable auction", set the starting price, set the price for which you can redeem the goods immediately. Expose the quantity of goods and the number of days, how long theauction will last.
If the item will is not sold, it will return to your warehouse.
On the exchange you can see the products and number of Lots that are currently for sale.

You can negotiate the sale or purchase of necessary goods either by mail, or on the chat.