Marginal Economics · Volume Strategy · Price Floor Analysis
DPR v15 · Sept 2026
Contribution / MT RHA
₹15,849
Standard PS ₹26 + PCC ₹10/kg
Variable cost / MT RHA
₹20,551
RHA + NaOH + CaO + power + pack
PS floor price (PCC@₹10)
₹7.9/kg
Breakeven — standard is ₹26 (3.3×)
PCC "subsidy" to PS
₹13,657
PCC covers 66% of variable cost
The structural insight: For every MT of RHA you run through the plant, causticisation (NaOH recovery) mandatorily produces 1.35 MT of nano-PCC. That PCC revenue covers 66% of all variable costs before a single kg of PS is priced. This means Fluxara can sell PS at ₹7.9/kg and still break even — no competitor without free PCC co-production can match this floor. Standard market price of ₹26/kg gives you 3.3× safety margin above breakeven.
Variable Cost Build-Up — Per MT RHA (Standard Grade)
NaOH 48% lye (0.606 MT)
₹11,060
53.8%
CaO quicklime (0.889 MT)
₹5,334
25.9%
Packing + transport
₹2,419
11.8%
Electricity (variable)
₹988
4.8%
RHA (purchased)
₹750
3.7%
Total variable cost/MT RHA:₹20,551
No CTAB (₹180/kg), no stearic acid — Y1 standard grade. HDS and sealant grades add ~₹4,200/MT RHA in CTAB+stearic.
Revenue per MT RHA at Standard Prices
PS (0.875 MT × ₹26/kg)
₹22,745
62.5%
PCC (1.349 MT × ₹10/kg)
₹13,487
37.1%
Residue (0.190 MT × ₹900)
₹171
0.5%
Total revenue/MT RHA:₹36,403
Contribution margin:₹15,849 (43.5%)
PCC alone covers ₹13,487 of the ₹20,551 variable cost — 66% of variable cost is already recovered by the obligatory NaOH recovery co-product.
Contribution at Different Price Scenarios
Scenario PS Price PCC Price Revenue / MT RHA Variable Cost Contribution Margin % Annual (100% Ph1A)
▶ BELOW STANDARD (distressed / early market)
Dead floor ₹26/kg ₹8/kg ₹33,703 ₹20,551 ₹13,152 39.0% ₹6.52 Cr
▶ STANDARD MARKET (Year 1 base)
Standard grade ₹26/kg ₹10/kg ₹36,403 ₹20,551 ₹15,849 43.5% ₹7.86 Cr
Standard + mid PCC ₹26/kg ₹12/kg ₹39,098 ₹20,551 ₹18,547 47.4% ₹9.21 Cr
▶ PREMIUM (Year 2+ after customer qualification)
HDS qualifying ramp ₹38/kg ₹10/kg ₹46,897 ₹20,551 ₹26,346 56.2% ₹13.07 Cr
HDS qualified + sealant PCC ₹46/kg ₹12/kg ₹56,592 ₹24,751* ₹31,841 56.3% ₹15.80 Cr
Full premium ₹46/kg ₹15/kg ₹60,638 ₹24,751* ₹35,887 59.2% ₹17.81 Cr
Fixed OPEX (not included above — doesn't scale with volume) ₹3.72 Cr/yr
* Premium grades include CTAB (₹180/kg, 0.289 MT/day) + stearic acid (₹120/kg, 0.162 MT/day) → +₹4,200/MT RHA in variable cost. Y1 standard grade avoids this entirely.
† Annual contribution = MT contribution × 4,961 MT/yr RHA at 100% Phase 1A. Subtract ₹3.72 Cr fixed to get EBITDA.
Minimum PS price (PCC@₹10)
₹7.9/kg
Below this, marginal EBITDA goes negative
Competitor's PS floor (estimate)
₹18–22/kg
No PCC subsidy — full cost on PS alone
Fluxara price advantage
₹10–14/kg
Structural — not cyclical
Market standard PS price
₹26/kg
3.3× above Fluxara's floor
PS Minimum Viable Price at Different PCC Realisations
PCC @ ₹8/kg (bulk coatings, low-end) Min PS = ₹11.0/kg
Break-even zone
₹11
Standard ₹26
HDS ₹46
PCC @ ₹10/kg (bulk coatings, standard) Min PS = ₹7.9/kg
Break-even
₹7.9
Standard ₹26
HDS ₹46
PCC @ ₹12/kg (coatings good batch) Min PS = ₹4.8/kg
BE
₹4.8
Standard ₹26
HDS ₹46
PCC @ ₹15/kg (coatings premium / sealant) Min PS = ₹0.2/kgPS is nearly free
₹0.2
Standard ₹26
HDS ₹46
Why Competitors Can't Match This Floor
A standalone PS manufacturer (without PCC co-production) must recover ALL variable costs from PS revenue alone. Their breakeven at similar NaOH + CaO input costs:

NaOH cost alone = ~₹14.7/kg PS produced (0.889 MT NaOH lye × ₹18,240 ÷ 0.875 MT PS). Add CaO disposal, packing, power — their floor is ₹18–22/kg.

Fluxara's floor is ₹7.9/kg because PCC pays for the causticisation chemicals. This gap widens further as PS grades rise: at HDS (₹46/kg), Fluxara earns ₹36/MT RHA contribution over their costs — competitors earn the same ₹46/kg but need ₹36–38/kg to cover the same NaOH costs.

This is a structural advantage, not a cyclical one.
Pricing Strategy Implications
Aggressive volume pricing in Y1 is rational: You can price PS at ₹22–24/kg (below standard) to take market share from competitors, while still earning ₹11,000–13,000 contribution per MT RHA. This is a deliberate loss-leader strategy that competitors literally cannot afford to match.

Don't leave PCC on the table: If a paint/coatings customer asks for PS only, they almost certainly buy ground calcium carbonate too — bundle PCC into the conversation. Every ₹1/kg increase in PCC realisation = ₹4.45L/yr (Phase 1A, 100% util) more EBITDA.

Raise PS prices as customers qualify, not before: Start low to build relationships and volumes. Move to HDS prices once lab approval is done — not before, because spec sheets without qualification don't hold.
One risk to be aware of: The floor price analysis is marginal — it excludes fixed costs (₹3.72 Cr/yr). Even at dead prices, you still need sufficient volume to cover fixed costs. Below ~38% utilization (Phase 1A), even standard prices don't cover fixed costs. The push to 75%+ utilization ASAP is non-negotiable.
Floor EBITDA at Standard Prices (PS₹26 + PCC₹10) Across Utilisation Levels
These are floor numbers — all output sold at commodity standard prices with no premium whatsoever. Reality will be better as HDS and coatings customers qualify. The purpose is to show that even worst-case pricing at every grade, the business is EBITDA-positive above ~75% utilisation.
EBITDA contribution (bar = contribution; teal portion = after fixed costs)
EBITDA
DSCR
Y1 at 60% util
9.02 MT/day RHA · 2,976 MT/yr
Contrib ₹4.98 Cr
−Fixed
₹1.26 Cr
0.60×
Y1 at 75% util
11.27 MT/day · 3,720 MT/yr
Contrib ₹6.23 Cr
+₹2.51 Cr
₹2.51 Cr
1.19×
Y1 at 90% util
13.53 MT/day · 4,465 MT/yr
Contrib ₹7.47 Cr
+₹3.75 Cr
₹3.75 Cr
1.78×
100% Phase 1A
15.03 MT/day · 4,961 MT/yr
Contrib ₹8.30 Cr
+₹4.58 Cr
₹4.58 Cr
2.17×
Phase 1B (Month 18)
+4.57 MT/day · 19.60 MT/day total
Contrib ₹10.83 Cr
+₹6.83 Cr
₹6.83 Cr
3.24×
← Fixed costs (₹3.72 Cr) begin here    DSCR threshold 1.25× → above 75% utilisation at dead prices
The Ramp Dividend — Incremental EBITDA Per Utilisation Step
Ramp Step Extra RHA/yr Extra EBITDA New Capex?
60% → 75% +744 MT +₹1.25 Cr None
75% → 90% +744 MT +₹1.25 Cr None
90% → 100% +496 MT +₹0.83 Cr None
60% → 100% (total) +1,984 MT +₹3.32 Cr ₹0 capex
Ph1A 100% → Ph1B +1,508 MT +₹2.52 Cr ₹1.50 Cr
What Actually Limits the Volume?
1. Phase 1A equipment (binding up to 15.032 MT/day)
Leach reactors ×3 10KL, filter presses ×2, spray dryers ×2, causticisation tank — all sized for 15.032 MT/day RHA. You cannot process more than this without Phase 1B equipment, regardless of how much RHA you buy.

2. NaOH + CaO working capital
Going from 60% to 100% needs +₹1.40 Cr more in RM purchases/month. But if you're being paid within 30 days by coatings customers (PCC is cash-flow positive), this self-funds by Month 2-3.

3. Market absorption
At 100% Phase 1A: 4,339 MT/yr PS + 6,690 MT/yr PCC. This is ~0.2% of India's PS market and ~0.1% of PCC market. Market is not the constraint.

Conclusion: Run at 100% Phase 1A as fast as you can sell output. Economics are positive even at floor prices. Every day at 60% costs ₹10L in foregone EBITDA.
Core strategic principle: Fluxara is volume-positive at commodity prices. The premium grades (HDS, dental, sealant) are upside, not survival. This changes the right operating strategy: maximize throughput from Day 1, sell at any price above ₹8/kg PS + ₹8/kg PCC, and let HDS qualification happen in the background. The DPR's conservative 60% Y1 utilisation assumption is a floor, not a target.
Month 1–3: Full-Throttle Standard Grade
Do: Target 80–90% utilisation from Month 2. Buy maximum allowed RHA. Sell ALL PS at ₹26/kg standard and ALL PCC at ₹10/kg coatings grade. Don't wait for HDS qualification.

Why: At 80% utilisation (vs DPR 60%), you earn +₹2.08 Cr/yr EBITDA at dead prices. That's ₹17L/month extra — enough to pay 8 additional people or fund Phase 1B 2 months faster.

Customers: Asian Paints, Berger (PCC for paint coatings) — 2–3 month qualification. GCC/rubber compounders for standard PS.
Month 3–18: Parallel Premium Qualification
Do: Run HDS qualification with Apollo/MRF in parallel with full standard production. Don't divert production capacity to qualification samples — run qualification on a side-stream or off-spec batch. HDS qualification takes 6–12 months regardless; start it Day 1.

Why: HDS approval at Month 15-18 = PS price goes from ₹26 to ₹46–50/kg. On 5,658 MT/yr (Phase 1B), that's +₹11 Cr/yr revenue jump. Every month of delay = ₹1 Cr left on the table.

Key: Lab qualification needs CTAB ≥175 mg/g — this requires draft-tube causticiser (install at commissioning, not retrofit).
Month 18+: Price Migration Strategy
Do: As HDS customers qualify (Apollo, MRF, Ceat), migrate their contracts from ₹26 to ₹46/kg. Don't drop standard-grade customers — keep them as volume base and shift new production (Phase 1B) to HDS.

Why: Every MT shifted from standard (₹26) to HDS (₹46) = +₹20,000 margin, but you must maintain overall volume to cover fixed costs. A 50/50 mix of standard and HDS = blended ₹36/kg vs competitors' ₹26 ceiling.

Sealant PCC: Pidilite/Sika qualify separately — can happen Month 6–12 since PCC spec is simpler. If they come online early, PCC price migrates ₹10 → ₹26, adding ₹5.3 Cr/yr to EBITDA.
What Hurts This Strategy
NaOH price spike: Every ₹1,000/MT increase in NaOH lye = ₹606/MT RHA extra cost = ₹3.0 Cr/yr more OPEX at 100% Ph1A. At standard prices, sensitivity is manageable (break-even PS rises ₹0.7/kg per ₹1,000 NaOH increase).

Low NaOH recovery: DPR assumes 82% causticisation. If recovery is 75%, NaOH makeup rises 38% → adds ₹4.2 Cr/yr OPEX at 100% util. Lab validation of causticisation efficiency is the #1 pre-commissioning priority.

Operating below 75% utilisation: Fixed costs (₹3.72 Cr) are not covered below ~38% util, but even at 60% standard prices = positive contribution margin. 60%→75% ramp is where DSCR crosses the 1.25× covenant.
Digital Twin Integration (Already in CAPEX)
What it already does: The DT/AI models used during DPR design already optimised the 88% SiO₂ extraction and 82% NaOH recovery targets. These are AI-optimised values, not naive engineering estimates — so the DPR baseline is already at the AI-improved efficiency level.

Operational use (Y1+): Real-time causticisation monitoring to push recovery 82% → 85–87% (every 1% = ₹0.47 Cr/yr). Spray dryer inlet temperature optimisation (±5°C = ±3% product moisture = ±1.5% BET surface area). RHA SiO₂ variability prediction from supplier batch data.

No new capex — already funded. MAIS remote oversight enables this without an on-site data scientist in Y1.
Solar — DISCOM 400 kWp Hard Cap
The constraint: TSERC net metering rules cap solar installation at 80% of sanctioned load. 500 kW sanction → 400 kWp is the absolute maximum panel installation. This is a regulatory limit, not economics.

DPR has 250 kWp → incremental is 150 kWp: +150 kWp costs ₹0.45 Cr gross (₹0.32 Cr after 30% TSREDCO subsidy), generates +189,000 kWh/yr = +₹0.13 Cr/yr saving. Payback 2.4 yr.

To go beyond 400 kWp: Apply for load enhancement to DISCOM when Phase 1B increases your installed load to 600–700 kW. New 80% cap = 480–560 kWp. Revisit at Month 18.
P&L at Different Utilisation Levels — Standard Dead Prices vs Premium Blend
Scenario Util% Contribution Fixed OPEX EBITDA Interest (Y1 moratorium) Net Cash Y1 DSCR
▶ DEAD PRICES ONLY — PS₹26 + PCC₹10 (worst case)
Y1 at 60%60%₹4.98 Cr₹3.72 Cr ₹1.26 Cr₹2.11 Cr−₹0.85 Cr0.60×
Y1 at 75%75%₹6.23 Cr₹3.72 Cr ₹2.51 Cr₹2.11 Cr+₹0.40 Cr1.19×
Y1 at 90%90%₹7.47 Cr₹3.72 Cr ₹3.75 Cr₹2.11 Cr+₹1.64 Cr1.78×
▶ WITH PRODUCT-MIX FIX (remove CTAB/stearic from Y1 OPEX — correct for standard grade)
Y1 at 60% · mix fix60%₹4.98 Cr₹2.30 Cr* ₹2.68 Cr₹2.11 Cr+₹0.57 Cr1.27×
Y1 at 75% · mix fix75%₹6.23 Cr₹2.30 Cr* ₹3.93 Cr₹2.11 Cr+₹1.82 Cr1.86×
* Fixed OPEX ₹2.30 Cr = ₹3.72 Cr DPR − ₹1.03 Cr CTAB (variable, not in Y1) − ₹0.38 Cr stearic (variable, not in Y1). This is the corrected Y1 fixed overhead for standard-grade-only production.
† Net Cash = EBITDA − interest (moratorium year, no principal). Positive = no promoter bridge needed.