The rebuy option provides security to Geko as they have one...

The rebuy option provides security to Geko as they have one third of the acquisition tied to a royalty. So this clause effectively puts a timeline on that royalty, in part or whole, for BCN to have done a meangingful amount of work in order to mine the existing gold. Else BCN could in some plane of existence stretch things out over a timeline that was too painful for Geko to wait for the royalty, and they may sell their stake in the asset cheaply. A very unlikely scenario, but foreseeable nonetheless. However, as others stated, forfeiture of the asset would also result in Geko picking up the tab on the costs of repairing the hole in the ground. In the event that BCN finds an unexpectedly large deposit hiding on the tenement, I believe they have given themselves enough time to exploit it, and they would no doubt put full force into that exploitation in the event of that discovery. Therefore this option provides good security to both parties that a good deal has been struck.

IMO this is a good acquisition for BCN, a good deal for Geko, and as has been the case for the last 3 years a muted response from the market.