RE: Updated NPV using latest prices27 Feb 2026 10:13
Pt1.
STEP 1 — CONFIRMED ANNUAL PRODUCTION
Phalaborwa is expected to produce ca. 1,817 tpa of NdPr oxide at 99.5% purity and ca. 1,159 tpa of a SEG+ MREC product of 99.5% purity containing 719 tpa TREO. The November 2025 Yttrium RNS separately confirmed 213 tpa of yttrium oxide within that SEG+ basket.
Estimated annual SEG+ element breakdown:
Dysprosium 60 tpa (within 80 tpa Dy+Tb, approx 3:1 Dy:Tb ratio)
Terbium 20 tpa (within 80 tpa Dy+Tb)
Yttrium 213 tpa (explicitly confirmed in Nov 2025 RNS)
Samarium 256 tpa (largest single SEG element by mass)
Gadolinium 128 tpa (estimated from basket remainder)
Europium 42 tpa (smallest SEG group element)
Total SEG+ 719 tpa TREO
STEP 2 — PAYABILITY
Rainbow's own published economic modelling used a conservative 70% payability for the SEG+ mixed product. This reflects its form as a mixed rare earth carbonate rather than separated oxides. For NdPr, as a separated 99.5% oxide, 95% payability is industry standard and appropriate.
STEP 3 — PRICING COMPARISON
Chinese domestic prices (from user-supplied SMM data, 27 Feb 2026) versus current European / ex-China assessed prices. The European premiums reflect Chinese export controls imposed from April 2025 across heavy and medium rare earths, creating acute supply scarcity outside China.
NdPr Oxide
Chinese domestic $114.57/kg
European assessed $160/kg (approx 40% premium, driven by export controls)
Dysprosium Oxide
Chinese domestic $208.55/kg
Chinese FOB $327/kg
European assessed $930/kg (up 105% in 2026 YTD)
Terbium Oxide
Chinese domestic $840/kg
Chinese FOB $1,192/kg
European assessed $3,500/kg (conservative; European spot has reached $4,200)
Yttrium Oxide
Chinese domestic $8.88/kg
European assessed $270/kg (midpoint of $220-$320 per Nov 2025 RNS)
Samarium Oxide
Chinese domestic $2.12/kg
European assessed $15/kg (subject to export controls since Apr 2025)
Gadolinium Oxide
Chinese domestic $33.79/kg
European assessed $100/kg (significant European premium post export controls)
Europium Oxide
Chinese domestic $21.63/kg
European assessed $30/kg (modest premium; not on highest USGS risk list)
STEP 4 — ANNUAL REVENUE BUILD
A. Original Interim Study Revenue (Chinese prices, NdPr plus Dy and Tb only, Sm/Eu/Gd/Y valued at zero)
NdPr 1,817t $111/kg 95% payability $192.0M
Dy 60t $340/kg 70% payability $14.3M
Tb 20t $1,875/kg 70% payability $26.3M
Sm/Eu/Gd/Y — — not modelled $0.0M
Total Interim Study Annual Revenue $232.6M
B. Updated Revenue at European Prices (Full SEG+ basket included)
NdPr 1,817t $160/kg 95% payability $276.2M
Dy 60t $930/kg 70% payability $39.1M
Tb 20t $3,500/kg 7