The lowest-cost maker of high-chrome grinding media, trading at its cheapest multiple in ten years.
Freight back to 7–8% of sales (Q3 FY27); firmer FY28 volume guidance (May 2027); Ghana and China plant decision; a payout policy for ₹4,500 Cr of idle cash.
FY28 mining volume is under 165 kt, the margin stays below 24% after freight normalises, or related-party receivables rise again in FY27.
On the group’s strictest assumptions AIA is worth ₹3,129–3,523 in 2029: roughly today’s price. The downside is bounded.
| Evidence | Result against forged |
|---|---|
| Wear-rate studies, ball mills | 25–30% less wear; up to 50% in corrosive circuits |
| AIA retrofit, 19 Mtpa copper mine, Philippines | 31% less media and 18% less power per tonne |
| Vega veteran (our interview) | 50–80% less wear: 650 → 300–350 g per tonne of ore |
| Price | ~US$1,900/t vs US$970/t forged: twice the price, a fraction of the wear |
| Where it fails | SAG mills with 130–160 mm balls: high chrome cracks, forged stays |
At a 1% grade a mine grinds 100 t of rock per tonne of copper; at 0.5%, 200 t. Up to half a mine’s energy goes into crushing and grinding.
The IEA sees mine supply 30% short of demand by 2035; Chile’s 2026 output is forecast −8.4%. Mines must get more out of existing mills.
The largest forged maker, now owned by Tega, plans 10x its high-chrome capacity, to 200 kt. That proves the demand, not AIA’s share.
Converted decades ago; AIA supplies 95% of Indian plants, and India adds ~35% capacity by FY31. Steady, not the growth driver.
Indian scrap, labour and power. Of ₹171 revenue per kg, AIA keeps ₹49 as EBITDA. Raw materials pass through in 3–6 months.
48 years of mill data and proprietary alloys. Blue-chip miners trial for a year before they buy, which keeps new entrants out.
Liners, media and the NGDS discharge system are tuned together. Rivals selling only media cannot match it.
No debt and ₹4,516 Cr of net cash. Tega borrowed ~₹11,700 Cr to buy Molycop, which limits how hard it can cut prices.
| Said | When | Happened | Verdict |
|---|---|---|---|
| Margin of 24–26% as mining grows | May 26 | 28.4% in FY26; 26.5% in H1 FY27 with freight at 10% of sales | Delivered |
| A large media order in Chile | FY26 AR | US$32.9 mn, 18 months, 3,000–3,500 t a quarter | Delivered |
| FY27 capex ₹350–400 Cr | Aug 26 | ₹86 Cr in H1, ₹250 Cr planned for H2 | On track |
| 5.2 lakh t capacity by Mar 2025 | FY23 AR | 4.36 lakh t; second phase cut, then dropped | Missed |
| No major threat from trade barriers | FY22 AR | Duties in five countries; 75–80 kt lost | Missed |
| China and Ghana plants in 1.5–2 years | Jan 26 | On hold for another quarter | Delayed |
| Decide how to return surplus cash | Aug 26 | No decision; dividend flat at ₹16 since FY23 | Pending |
Founded AIA in 1978; IIT-trained metallurgist. Owns 58.5%, worth ~₹17,400 Cr. FY26 pay ₹1.1 Cr with no options or bonus, against ~₹87 Cr of dividends. Kunal Shah (ED) and Sanjay Majmudar run the investor calls.
₹2,643 Cr of FY22–26 cash went to the treasury, earning ~7%, over three times capex. One ₹500 Cr buyback at ₹5,000 (2024).
Related-party receivables up from ₹55 Cr to ₹244 Cr in FY26; chairman and MD combined since April 2026; no named successor.
25–29% margin through raw-material spikes, Red Sea and tariffs
Capacity target dropped; satellite plants deferred twice
Stopped giving dates; plan labelled “not guidance”
Disciplined capex, no debt; too much idle cash
Promoters at 58.5% for seven years; tendered into buyback
Combined chair and MD; related-party sales 6–7% of revenue
| Cross-check | AIA | Read |
|---|---|---|
| EV/EBITDA, FY26 | 20.1x | Peers 6.4–16.9x; premium in line with margin |
| Street, 12 post-Q2 notes | ₹4,160 | 8 of 14 ratings Buy; ours ₹4,334 on lower EPS |
| EPS FY27/28/29, ours vs street | ₹112/134/156 | Street ₹128/143/158: we are below consensus |
| Past troughs | 2020, late 2024 | Both re-rated when volume grew |
| Our exit multiple | 30x | Below the ten-year bottom quartile (32.6x) |
| Bear | Base | Bull | |
|---|---|---|---|
| Volume growth FY28–30, a year | 3.5% | ~8% | ~10% |
| EBITDA margin | 25.5% | 28% | 29% |
| Rupee price growth | 3% | 4–4.5% | 4–4.5% |
| WACC / exit P/E | 12% / 21x | 11% / 30x | 10.5% / 35x |
| DCF value today | ₹1,643 | ₹2,935 | ₹4,018 |
| Value, Nov 2029 / return a year | ₹2,467 / −7.7% | ₹4,334 / 11.4% | ₹5,640 / 21.7% |
| WACC 11.5%, price growth 3%, NWC 45%, g 4%, terminal ROIC = WACC | Value |
|---|---|
| DCF today | ₹1,895 |
| Nov 2029 at 30x / 24x / 21x exit | ₹3,523 / ₹3,129 / ₹2,932 |
| Two inputs contradict our thesis | 3% price growth; moat gone by FY41 |
| Return a year at 30x / 24x / 21x | +4.1% / +0.1% / −2.0% |
| Risk | Type | Mitigant | Trigger we watch |
|---|---|---|---|
| Trials fail and conversion stalls | Thesis | The base case needs no NGDS win; conversion is a year-long process by design | Sell if FY28 mining volume is under 165 kt |
| Duties reach the copper belt | Thesis | Peru and Ghana have no local forged maker; Ghana and China plants are the hedge | Any trade case in Chile, Peru, Ghana, Zambia |
| Freight stays at 10% of sales | Earnings | Contracts moving to FOB plus actual freight; normal is 7–8% | Margin below 24% after freight normalises |
| Molycop scales high chrome | Earnings | Confirms demand; AIA’s cost per tonne is far lower | AIA realisation per kg against peers |
| Ferro-chrome and scrap spikes | Earnings | Price-variation clauses, 3–6 month lag | Gross margin two quarters after a spike |
| Credit used to win share | Earnings | Credit insurance in place | Debtor days above 95 for two quarters |
| Related-party receivables | Governance | Disclosed and audited | Sell if they rise again in FY27 (₹244 Cr now) |
| Founder key-person risk | Governance | Kunal Shah runs strategy and investor calls | A named succession plan |
| Metal prices fall | Cyclical | Media are consumables; mines cut capex long before throughput | Mining tonnes milled, not metal prices |
We would sell if mining volume stays flat through FY28, if the operating margin stays below 24% after freight normalises, or if management spends the cash outside the core business.
300–500 marked balls in the live mill
Wear rate and feed; the longest negotiation
2–4 months from India
Replace wear until 95% converted: 3–6 months
3–6 months against baseline
Technical, then purchasing; repeat orders
Wear falls “up to 50%, sometimes 80%”: 650 to 300–350 g per tonne of ore. Throughput and power gains come on top. That pays for AIA’s price premium.
Mining: no converted mine seen going back to forged; an hour of mill downtime costs millions. Cement: “we monitor the performance, we solve the problems”; plants that leave on price come back.
~95% of CIS mines still use forged media: “we could easily double or triple our business.” Cement grows 5–7% a year; VRMs coexist with ball mills, and AIA sells VRM parts too.
Freight against local suppliers in some regions; mines are slow to change anything that touches production; in cement, price-led switching happens, though plants return.
| Question | Answer | Evidence |
|---|---|---|
| 1 · Will demand keep growing? | Yes: mines grind more as grades fall; mining is 70–75% forged | Copper grade −40% since 1991; 2 Mt pool; Molycop building 200 kt high chrome |
| 2 · Lasting edge? | Yes: lowest cost, metallurgy, liners and media as one system | ₹48,700 EBITDA/t (4x Molycop); 28% margin; 35% median ROTCE |
| 3 · Why now? | Duties explain the flat years; orders and mining tonnes have turned | Adjusted volume +4.8% a year; order book ₹1,071 Cr; 59% utilisation |
| 4 · Management? | Trust the margins, discount the timelines | Margin and capex guidance met; founder owns 58.5%; RPT receivables to watch |
| 5 · What does the price assume? | Less growth than the business is set to deliver | 7.7% implied growth; 28.7x ex cash vs 35.9x median; street ₹4,160 |
| 6 · What proves us wrong? | A stall in conversion or duties on the copper belt | Sell below 165 kt FY28 mining volume or margin under 24% |
| 7 · What does the trade say? | Two insiders confirm the saving, stickiness and runway | 50–80% wear saving; ~1-year conversions; leavers return |
Freight back to 7–8% of sales; Chile at full run-rate
Firmer FY28 volume guidance
Ghana and China plant decision; NGDS trial results
Board decision on returning surplus cash
Volume +25–30 kt a year; utilisation above 70%