The Loading Kit is used to transfer the determined amount to your Satori Coin Chi after you've received it in the mail.
It's critically important that you download this document, print it out, and keep it until Loading is complete. If you lose this document before loading your Satori Coin Chi, the value will be lost forever.
After you've loaded your Satori Coin Chi, it is safe to dispose of this document. Since the value has already been transferred, there's no special treatment required in how you throw it away.