Yes normally there is a letter of intent which is simply agreement on price and terms and expiry date, which the media interprets as firm orders. There will sti

Yes normally there is a letter of intent which is simply agreement on price and terms and expiry date, which the media interprets as firm orders. There will still be a bunch of negotiation happening afterwards and and eventually a purchase agreement. There's still more after that but LOI is considered a starting point to say "I'm serious"