Project Number: 61

Deposit Number: 47

Location: Bujumbura, Burundi

Resource (*10^4 t, REO, Total): 29.7

Grade (wt. %): 1.25

La2O3: 30.0888807576314

Ce2O3: 41.365161768582

Pr6O11: 3.00573733379489

Nd2O3: 19.9637134878078

Sm2O3: 2.91013670046265

Eu2O3: 0.548519477918474

Gd2O3: 1.51439072010652

Dy2O3: 0.193469535652572

Ho2O3: 0.0166075375252884

Er2O3: 0.0256132385862251

Yb2O3: 0.00439006831499346

Lu2O3: 0.000273596067629001

Y2O3: 0.363105777549452

HREE Percentage: 2.11785047380268

REE Pattern Reference: Buyse et al., 2020

Project and Status Reference: Rainbow Rare Earths, Corporate-Presentation, 2022, https://www.rainbowrareearths.com/wp-content/uploads/2022/03/2022-03-Rainbow-Corporate-Presentation_v2.pdf

Resource and Grade Reference: Rainbow Rare Earths, Corporate-Presentation, 2022, https://www.rainbowrareearths.com/wp-content/uploads/2022/03/2022-03-Rainbow-Corporate-Presentation_v2.pdf