Key Takeaways 80% confidence
- China's export controls on indium phosphide, extended in early 2026 to cap raw indium exports at 30% of output, have helped push six-inch InP wafer prices up roughly 250% to near $5,000 each, part of a broader 200%-plus rise over the past year.
- China controls all three chokepoints in the supply chain: over 70% of raw indium reserves and about half of raw output, 70-80% of refining capacity, and even the world's #2 InP wafer producer, AXT Inc, runs its production inside China via its Beijing Tongmei subsidiary.
- Global 2026 InP wafer demand is projected at 2.6-3 million wafers against effective capacity of only 600,000-700,000, a shortfall of up to 70% that Lumentum's CEO says the company can't meet even combined with Coherent.
- Nvidia has committed a combined $4 billion to Lumentum and Coherent (including $2 billion directly to Coherent, backed by a $50 million CHIPS Act grant) to quadruple non-Chinese wafer capacity, while Nokia has bought InP fabs from Infinera and NXP to build its own supply.
China's export controls on indium phosphide, extended to raw indium in 2026, have pushed wafer prices up roughly 250%, prompting a combined $4 billion Nvidia investment to build non-Chinese supply.
Analysis 80% confidence
China's export controls on indium phosphide, first imposed in February 2025 and extended in early 2026 to cap exports of raw indium itself at 30% of total output, have pushed prices for the compound semiconductor sharply higher. Six-inch indium phosphide wafers -- the material used to build the lasers and optical transceivers that move data between AI accelerators inside data centers -- have risen roughly 250% to near $5,000 each, part of a broader trend that has seen indium phosphide prices climb more than 200% over the past year across four consecutive quarters of increases.
The squeeze runs through three separate chokepoints, all of them inside China. China holds more than 70% of the world's raw indium reserves and produces over half of global raw output; it also refines 70-80% of the world's indium to the ultra-high-purity grades wafer manufacturing requires. The third chokepoint is more surprising: AXT Inc, officially the world's second-largest indium phosphide wafer producer, runs its entire production line through its Beijing Tongmei subsidiary -- inside China, and therefore inside the same export-control perimeter, regardless of AXT's US headquarters. Beijing Tongmei did receive an export license in June 2025, but the approved volume fell short of what the market needed.
The alarm from industry executives has been getting louder. IQE, one of the compound-semiconductor industry's established wafer makers, has warned the shortage is becoming a genuine supply-security crisis rather than a temporary pricing blip. Lumentum's chief executive put the capacity gap in blunter terms in early August: "I don't think our combined capacity with Coherent can meet the demand from Nvidia and other customers." The numbers behind that statement are stark -- global indium phosphide wafer demand is projected at 2.6-3 million wafers in 2026, against effective global capacity of only 600,000-700,000 wafers, a shortfall industry estimates put as high as 70%. Production of 800G optical transceivers, the workhorse component in current AI data-center networking, is running 40-60% below demand through 2027.
The response from the industry's biggest customer has been to buy its way into supply. Nvidia announced a combined $4 billion investment across Lumentum and Coherent, with $2 billion of that going directly to Coherent -- backed by a $50 million CHIPS Act grant -- to quadruple wafer production at a Texas facility that supplies lasers and transceivers for Nvidia's own photonics-based networking hardware. Coherent has committed to doubling its indium phosphide capacity in 2026 and doubling it again after that, with almost all of the new capacity on six-inch wafer lines, the size in shortest supply. Nokia has taken a similar route by acquisition rather than construction, buying Infinera's indium phosphide wafer fab in California and NXP's fab in Arizona to convert to indium phosphide production.
There's a complication that cuts against a simple narrative of the US racing to build around a Chinese chokepoint: China also dominates the finished optical-module market that consumes indium phosphide wafers. Seven of the world's top ten optical module makers are Chinese, and two of them, Zhongji Innolight and Eoptolink, together hold more than 60% of the global 800G/1.6T transceiver market -- Zhongji Innolight alone is estimated to supply around 70% of the 1.6T modules going into Nvidia's own GB200 systems. Chinese material suppliers are capturing the price surge too: Yunnan Germanium's 2025 revenue grew 60.77% year-on-year, with one subsidiary signing a wafer supply contract worth CNY 570-855 million, while Zhuzhou Keneng's overseas revenue jumped from roughly CNY 30 million in 2023 to CNY 200 million in 2025.
US regulators have started pushing back: the Federal Communications Commission has proposed a blanket ban on optical communications modules from Chinese manufacturers. But that proposal runs into the same supply problem driving the crisis in the first place -- alternative, non-Chinese module capacity doesn't yet exist at the scale needed, global capacity is still migrating rather than settled, and demand for optical modules is itself accelerating as data centers shift away from copper interconnects. Until Western indium phosphide capacity actually comes online, the chip industry's exposure to a single-country chokepoint on a metal most people have never heard of is likely to keep showing up in AI hardware costs.
Why This Matters 76% confidence
Indium phosphide sits in a part of the AI supply chain most people never think about, but it has become one of the tightest chokepoints in the entire buildout: every AI data center depends on optical transceivers to move data between accelerator chips fast enough to keep pace with the hardware itself, and there is currently no substitute material. That combination -- a single country controlling the raw material, its refining, and even a major share of wafer manufacturing -- gives China unusually direct leverage over a bottleneck that sits upstream of practically every large AI buildout, Nvidia's included, at a moment when Washington is still working out how to respond.
Price Impact
This is a confirmed, already-realized price surge (six-inch InP wafers up roughly 250% to near $5,000) driven by a structural, three-layer Chinese supply chokepoint with no substitute material, corroborated by multiple industry executives citing a real demand-supply gap; the main offsetting factor is multi-year Western capacity expansion already underway.
Market Snapshot Computed live
Based on metalscost.com's own tracked India reference price as of 2026-09-13 (current). Volume and open interest aren't tracked by this site and are intentionally left blank rather than estimated.
Technical Analysis Computed live
Price is mixed relative to its 20-period and 50-period moving averages, showing no clear trend alignment.
Breakout probability: Low — price is trading mid-range.
Fundamental Analysis
Demand Drivers 78% confidence
AI data-center buildouts are driving surging demand for optical transceivers as networks shift from copper to optical interconnects to keep pace with accelerator chips -- global 2026 InP wafer demand is projected at 2.6-3 million wafers, far outstripping the 600,000-700,000-wafer effective capacity available.
Supply Drivers 84% confidence
China controls all three chokepoints of the indium phosphide supply chain: over 70% of raw indium reserves and roughly half of global raw output, 70-80% of refining capacity to wafer-grade purity, and the China-based production line of AXT Inc, the world's #2 InP wafer maker.
Government Policies 74% confidence
Nvidia's Coherent investment is partly backed by a $50 million US CHIPS Act grant, and the US Federal Communications Commission has proposed a blanket ban on optical communications modules from Chinese manufacturers -- though that proposal faces its own supply-capacity obstacles.
Geopolitical Risks 82% confidence
China's indium phosphide export controls (imposed February 2025, extended in early 2026 to cap raw indium exports at 30% of output) give it leverage over a material with no substitute in AI data-center optical transceivers, and China separately dominates the downstream finished optical-module market through companies like Zhongji Innolight and Eoptolink.
Refinery Output 78% confidence
China refines 70-80% of the world's indium to the ultra-high-purity grades needed for wafer manufacturing, a chokepoint separate from and additional to its raw-material dominance.
Country Impact 78% confidence
| Country | Impact | Reason |
|---|---|---|
| China | High | China controls raw indium reserves and output, indium refining, and (through AXT Inc's Beijing Tongmei subsidiary) a major share of wafer manufacturing, while its export licensing decisions directly set global supply. — Beijing Tongmei received an export license in June 2025, but the approved volume fell short of market expectations. |
| United States | High | US-based AI chipmakers and hyperscalers, led by Nvidia, are directly exposed to the shortage and have committed billions of dollars to build non-Chinese indium phosphide capacity. — Nvidia committed a combined $4 billion to Coherent and Lumentum, partly backed by a $50 million CHIPS Act grant, to quadruple wafer capacity at a Texas facility. |
Industry Impact 76% confidence
| Industry | Effect | Reason |
|---|---|---|
| Semiconductors | Negative | Indium phosphide wafer shortages and price surges (up roughly 250% for six-inch wafers) directly raise costs and constrain supply for compound-semiconductor and photonics manufacturers. |
| Data Centers | Negative | AI data-center operators depend on indium-phosphide-based optical transceivers to scale their networks, and a global capacity shortfall of up to 70% threatens to slow buildouts or raise their cost. |
Timeline
2025-02: China imposed export controls on indium phosphide and related products.
2025-06: Beijing Tongmei, AXT Inc's Chinese subsidiary and a major InP wafer producer, received an export license, though the approved volume fell short of market expectations.
2026-01: China extended its export controls upstream to raw indium itself, capping exports at 30% of total output.
2026-03-02: Nvidia announced a combined $4 billion investment in photonics companies Coherent and Lumentum to expand indium phosphide laser and wafer capacity.
2026-08: Lumentum's CEO said the company's combined capacity with Coherent could not meet demand from Nvidia and other customers.
Market Sentiment
Bullish Factors 78% confidence
- The supply chain has three separate Chinese chokepoints -- raw material, refining, and a major share of wafer manufacturing -- with no substitute material available, a structural setup that supports durable pricing power.
- The demand-supply gap is real and large: Lumentum's own CEO says its combined capacity with Coherent can't meet current demand, against a backdrop of 2.6-3 million wafers of 2026 demand versus 600,000-700,000 wafers of effective capacity.
- China's export controls have been tightening, not easing -- extended from indium phosphide itself to raw indium in early 2026, with exports capped at 30% of output.
Bearish Factors 68% confidence
- Nvidia, Coherent, Lumentum and Nokia are all actively investing in non-Chinese capacity -- Coherent doubling capacity in 2026 and doubling again after, Nokia converting two more fabs -- which could ease the shortage over a multi-year horizon.
- Beijing Tongmei did receive an export license in June 2025, showing China hasn't fully cut off supply, only constrained and slowed it.
Alternative Scenarios 64% confidence
- If Coherent's and Nokia's expanded non-Chinese capacity comes online on schedule, the supply-demand gap could narrow meaningfully by 2027-2028, easing today's price spike.
- If China tightens export licensing further, as it already did once by extending controls from indium phosphide itself to raw indium in early 2026, the shortage could deepen before Western capacity is ready, keeping prices elevated or pushing them higher still.
Who Benefits, Who Loses
| Party | Stance | Reason |
|---|---|---|
| Chinese indium and indium phosphide suppliers (Yunnan Germanium, Zhuzhou Keneng) | Bullish | Both companies are capturing outsized revenue growth from the price surge and their position inside China's export-licensing system -- Yunnan Germanium's 2025 revenue grew 60.77% year-on-year, and Zhuzhou Keneng's overseas revenue jumped from about CNY 30 million in 2023 to CNY 200 million in 2025. |
| AI chipmakers and hyperscalers (Nvidia and its data-center customers) | Bearish | They face higher costs and potential supply constraints on the optical transceivers essential to scaling AI data centers, forcing billions of dollars in defensive investment just to secure supply. |
Investor Watchlist 74% confidence
Educational items to monitor — not investment advice.
- Whether Coherent's planned doubling -- and re-doubling -- of indium phosphide capacity in 2026-2027 stays on schedule
- Any further tightening or loosening of China's indium and indium phosphide export license approvals, including future volumes granted to Beijing Tongmei
- The FCC's proposed ban on Chinese optical modules and whether alternative capacity exists to support it without disrupting AI data-center buildouts
Price Risks 68% confidence
- A further tightening of China's export licensing, as happened once already when controls extended to raw indium in early 2026, could push wafer prices higher still before Western capacity catches up.
- Coherent's and Nokia's capacity expansions, if they arrive faster than expected, could ease today's shortage and cap further price gains from current levels.
Historical Comparison
2025 vs. 2026 InP wafer pricing: Six-inch indium phosphide wafers have risen roughly 250% over the past year to near $5,000 each, part of a broader trend of four consecutive quarters of price increases across the indium phosphide market.
China
United States