That's not the way it works. If they don't have 7 million tons then Nemis can just say, sorry I was mistaken and after all I didn't have the full Geologist's report.
Sorry but the market will discount off the cuff comments about someone 'thinks' they have until they see this backed up. A 'qualified person' has to sign the report and he or she has professional qualifications.
Think of it this way, who do you think signs the paper for a Audited Financial Statement? It's a professionally qualified accountant not the President of the Company.