The business can only become viably sustainable from new...

The business can only become viably sustainable from new customers. This is evidenced by the current shareprice compared to 2 years ago when the business was anticipating great things from all the stories coming in on the business opportunities "just around the corner". Either those opportunities failed to materialize or were not as significant as first promoted. Investors began to sell out, seeing no growth (sales).
New investors are hearing of the new technological breakthroughs by Titomic and the lower entry pricing into the business, but older investors are keeping their distance. They will only come back on board and invest again if sales come in that are sustainable and consistent.
By comparison, just look at the success of the private company SPEE3D with their similar Cold Spray machine sales internationally. This is what earlier investors were promised with the TKF1000, but so far, from my understanding, not one machine has been delivered to a customer.