Offtakes are usually to manufacturers that need the resource not...

Offtakes are usually to manufacturers that need the resource not the end user of the product. I doubt Toyota or Mitsubishi woudl be interested unless they have subsidiaries that are specialist manufacturers.

The most common uses for silica sand are:

Golf courses & sports fields
Industrial abrasives
Filtration media
Glassmaking
Paints & coatings
Ceramics
Construction materials
Oil and Gas recovery

The purity of the product CRB is likely to produce lends itself to higher end uses for example electronics, solar panels, specialist glass e.g. Gorilla Glass in smartphones, medical glass vials etc and attracts a higher price.

There are quite a few companies some that are ahead of CRB which is why they need to get a move on e.g. VRX is possibly the closest to going mining but also others include ASQ, DRX, SUV, MLM, PEC in different stages of development.

Accepting your comment that you are new to this - my assessment is that CRB is too far away from producing any product to even start talking offtake - any offtake agreements generally go to projects that have all or most of their approvals in place and are closer to developing a mining operation but which need the offtake to support finance of the mine construction/processing plant. At the moment offtake counterparties are most likely talking to companies such as VRX which have more advanced projects closer to production.

Disclosure - I have a holding in VRX which is hopefully will get out of the EPA in the next few months but it has been a long drawn out process to get to the current stage and SUV - I invested in them as they are a kaolin producer, the silica sand project is a recent acquisition.

I invested in CRB when it was looking to process Mt Morgan tailings in QLD - the Board walked away from that project (there have subsequently been Board changes) and it was a few years before CRB acquired this project. IMO it has potential but the Board (needs to get their act together and actually look to advance the project a lot faster than they have done since acquisition