Because of the historic tin mining at Manono, Pegmatites were exposed and so it was believed that Manono had great potential to have a large lithium deposit. Force has land along strike of Manono and has recently have verified via trenching that the same pegmetite trend does go through their property. Force also has a JV with a local tin/Tantalum miner at Kanuka, which has a similar situation to Manono where mining has exposed large pegmatites. They have two shots to find a large resource.
I also feel the chinese have somewhat derisked AVZ/Force, because of the road and because they have a strong presence in the Congo for Cobalt mining already.