Fuel sales I wouldn't expect a PR or an 8K unless it's a material CONTRACT. Selling individual tankers of fuel? I don't expect a PR every time they sell a tanker of fuel including the first one as that would look pretty lame. "JBII announces that they sold a tanker of fuel for $30,000" ?
Nothing at all lame about you selling your product to someone for the first time. It is a critical and important chapter in a company's story. I see your point about small sales, but the LOI was not a small deal at least at this point. Why tell investors about the LOI and not with the follow through news of a signed contract? In the least, it would be nice to see who is the buyer. Could be that they don't want their name out their because of this new-way created fuel. IMO