Semicon 2.0's Real Risk Is Not the Fab: Gases, Chemicals and Tool Cargo

The Union Cabinet approved the second phase of the India Semiconductor Mission on 15 July 2026 with an outlay of INR 1.27 lakh crore, reported that day by The Indian Express and The Economic Times. The design of the phase is the part that matters to underwriters. Moneycontrol headlined its 16 July 2026 analysis "Beyond fabs: Inside India's semicon 2.0 strategy", and Tech Times on 2 August 2026 described the twelve approved chip sites as evidence that "Semicon 2.0 bets on materials and machines".

Phase one was built around fabs and assembly plants. This phase puts weight on the layer underneath them: electronic-grade materials, specialty and bulk gases, process chemicals, precursors, capital equipment and sub-assemblies. Open Magazine on 2 August 2026 put the cumulative bet at around USD 20 billion and tied the next phase to the AI-driven data centre build-out. Marvell's USD 250 million India investment and its plan to double its semiconductor workforce, reported by Gizmo Times on 30 July 2026, is headcount rather than plant, but it points the same way.

For an underwriter this is not a bigger version of the fab account. A fab is a very large, very clean, very well protected single occupancy. The supply layer is a set of medium-sized plants handling pyrophoric and toxic gases, bulk acids and solvents, and high-value freight, often sited within a few hundred metres of the customer they exist to serve. The exposure profile, the protection standards and the accumulation arithmetic are all different.

Electronic-grade gas supply is the highest-severity occupancy in the supply layer, and the one most often rated off a generic chemical schedule.

Silane (SiH4) is pyrophoric. It ignites on contact with air without an ignition source, and a delayed release that accumulates before ignition produces a deflagration rather than a jet fire. The failure point is usually the connection at a cylinder-change station or valve manifold box, not the vessel.

Ammonia (NH3) is toxic and, in the quantities held for nitride deposition, brings an offsite consequence. Hydrogen brings wide flammability limits, a near-invisible flame and a strong tendency to find leak paths that heavier gases would not. Bulk nitrogen and argon are asphyxiants, and an oxygen-deficiency event in a valve pit or a bunded enclosure is a liability claim rather than a property one.

What the survey has to establish

• Whether the site holds a current Petroleum and Explosives Safety Organisation (PESO) licence for its pressure vessels and cylinder storage under the Static and Mobile Pressure Vessels (Unfired) Rules, 2016 and the Gas Cylinders Rules, 2016, and whether licensed quantities match what is on site.
• Whether the installation is a Major Accident Hazard installation under the Manufacture, Storage and Import of Hazardous Chemical Rules, 1989, and whether the onsite emergency plan has been tested rather than filed.
• Separation distances between the gas yard, the process building, the customer boundary and any occupied block.
• Gas detection coverage and interlock logic: whether detection trips the source valve automatically or raises an alarm that waits for a human.
• Whether pyrophoric and toxic gases sit in dedicated, mechanically ventilated cabinets with excess-flow protection, or share a manifold room with inert gases.

Electronic-grade chemical supply means bulk storage of hydrofluoric, sulphuric and nitric acids, ammonium hydroxide, hydrogen peroxide, isopropyl alcohol and solvent blends, plus a chemical delivery system that pumps them to point of use inside the customer's cleanroom, often through a pipe rack crossing a road or an estate boundary.

The storage tanks get surveyed. The delivery system frequently does not, and it carries three exposures.

1. Property damage inside a third-party premises. A double-contained line that fails inside a fab's sub-fab level damages the fab, not the supplier's plant. That is a liability exposure sitting on a supplier who bought a fire policy and assumed the job was done.
2. Product liability on pure economic loss. Out-of-specification chemistry does not burn anything down. It scraps wafers. Indian product liability wordings sit awkwardly against a claim that is pure economic loss on the customer's work in progress, and the supply contract usually caps liability at invoice value while the customer's procurement team pushes for uncapped.
3. Statutory third-party liability. A handler of hazardous substances above notified quantities must hold insurance under the Public Liability Insurance Act, 1991, which funds relief on a no-fault basis. That policy is a floor, and it does nothing for the commercial exposures above. A separate public liability placement with an environmental impairment extension is the working answer.

Solvent handling decides the fire grade. A plant that blends and drums isopropyl alcohol is a flammable-liquid occupancy whatever else the site does, and belongs closer to chemical industry hazardous process risks than to an electronics schedule.

The most common grading error in this segment is letting the customer's protection standard flow through to the supplier's rating. A supplier inside a semiconductor estate benefits from the estate's fire water main, road access and emergency response. It does not inherit the fab's own protection, which is engineered for cleanroom plenum fires and chemical spills rather than for a gas yard.

Grade the supplier on its own footprint:

• Occupancy split. Rate the gas yard, the chemical storage, the blending or purification block, the warehouse and the office as separate occupancies with their own PMLs, rather than one blended rate across the site.
• Fire water adequacy at the supplier's own connection. Estate mains are sized on the estate's design case. Confirm residual pressure and duration at the supplier's most remote hydrant while the estate's other demands run.
• Separation and construction. Non-combustible construction, blast-relief panels where a deflagration is credible, and a physical break between the gas yard and any occupied building.
• Emergency response ownership. Whether the estate fire crew is contractually obliged to respond, whether it is trained on silane and ammonia, and whether the mutual-aid arrangement is documented.
• Utility dependency. A plant that loses power loses its scrubbers, ventilation and interlocks. Standby generation sized for lighting rather than safety systems is a rating factor.

Machinery deserves its own line. Purification columns, compressors, chillers and analysers are long-lead-time items, and a machinery breakdown that stops supply has the same downstream effect as a fire without the visible damage that makes a claim easy to prove.

Co-location is the point of the policy and the underwriting problem.

If one insurer or one reinsurance treaty carries the fab, the gas plant, the chemical plant and two equipment integrators inside a single estate, a deflagration in the gas yard can produce simultaneous claims on all five. The fab claims business interruption from loss of supply plus damage crossing the boundary, the gas plant claims a total property loss, and the neighbours claim smoke, blast and denial of access.

Three controls are worth insisting on before capacity is committed.

• Estate-level aggregation. Track exposure by estate, not by insured name. A supplier account written on its own merits can quietly double an existing fab line.
• A defined blast radius assumption. Fix a working overpressure contour for the credible worst case at the gas yard and test which insured locations fall inside it. Standard practice on LPG and ammonia risks, and it translates directly.
• Contingent exposure netting. If the fab's policy carries a contingent BI extension naming the co-located gas supplier and the same insurer writes that supplier's property cover, the insurer owns both ends of the same event.

Semiconductor capital equipment is among the highest value-per-consignment freight moving into India. A single deposition or lithography tool can be worth more than the annual turnover of the company installing it, and the crated tool moves as several oversize pieces with air-ride requirements, shock and tilt recorders and controlled humidity.

The recurring placement failure is the single transit limit on the marine open cover. Open covers written for routine imports carry per-sending limits set years earlier against ordinary component flows, and one tool shipment can exceed that limit outright, leaving the excess uninsured unless it was declared and accepted before the risk attached. The fix is mechanical: raise the per-bottom and per-conveyance limits ahead of the shipment window, get written confirmation of increased-value declarations, and confirm the accumulation clause covers port storage when several tools land in the same week.

Delay in start-up (DSU) cover is the second half. A damaged tool costs the ramp, not just its own value. Replacement lead times on semiconductor capital equipment run in quarters, and a tool lost at sea or dropped during heavy lift pushes qualification, customer sampling and revenue by the same margin. DSU belongs on the same policy as the material damage, with an indemnity period set against realistic re-manufacture and re-shipment time rather than a nominal twelve months. The mechanics of that placement, including Incoterms alignment and ICC clause selection, are set out in project cargo and DSU for capital-equipment imports.

One further detail belongs in the slip. Cover should run to the end of installation and commissioning rather than to port discharge or gate delivery, because the window between uncrating and successful qualification is where handling damage happens, and under FOB or CIF the buyer's marine cargo interest attaches at different points.

A fab can hold a fully placed property and business interruption programme and still recover nothing when the gas plant across the road burns down.

Standard BI cover responds to interruption following damage to the insured's own property at the insured premises. Loss of supply from a third-party site is a different trigger and needs a named extension. Three of them matter here.

1. Contingent business interruption (supplier extension). Responds to interruption caused by insured-peril damage at a named supplier's premises, with a sub-limit and often a longer waiting period than the main BI cover.
2. Denial of access. Responds when damage to nearby property prevents use of the insured premises. Relevant when an evacuation order after a toxic release keeps staff out for days without any damage to the fab itself.
3. Utilities extension. Responds to failure of incoming power, water or gas. Often written to the public utility's terminal point, which excludes a private supplier inside the estate.

Unnamed-supplier cover is thinly available in India and, where offered, carries a sub-limit low enough to be symbolic against a fab's monthly margin. Naming the co-located gas and chemical suppliers is the reliable route, which means the fab's broker needs the supplier list, each supplier's protection standard and its alternative-source position before renewal. The same logic runs the other way for the supplier, whose customer concentration is total and whose own BI needs a customer extension to respond when the fab is the one that stops.

For the fab side of that arithmetic see semiconductor business interruption underwriting, and for the assembly and test layer OSAT and ATMP operational insurance.

A working submission for a Semicon 2.0 supply-layer account should answer the following before terms are quoted.

Site and process

1. PESO licence status and licensed quantities against actual inventory for every compressed and liquefied gas held.
2. Major Accident Hazard classification under the Manufacture, Storage and Import of Hazardous Chemical Rules, 1989, with the date of the last tested onsite emergency drill.
3. Occupancy-by-occupancy PML, with the gas yard rated separately from the process block and the warehouse.
4. Gas detection coverage, interlock logic, separation distances to occupied buildings, and standby power sized for scrubbers and safety systems rather than lighting.

Contract, transit and accumulation

1. Customer concentration, contract liability caps, and whether the supplier has accepted uncapped consequential-loss exposure to the fab.
2. Public Liability Insurance Act, 1991 compliance, plus a separately rated public liability and environmental impairment placement above it.
3. Single-source status of the supplier's own inputs, and the qualification time for a second source.
4. Marine open cover per-sending and per-conveyance limits tested against the largest single tool shipment scheduled in the policy year.
5. DSU indemnity period set against actual re-manufacture and re-shipment lead time, with cover extended through installation and commissioning.
6. Estate-level accumulation across all insureds in the same industrial park, including any contingent BI extensions naming them.

The supply layer is where Semicon 2.0 adds the most new capacity and where the Indian market has the least placement history. Rating it off a generic chemical or electronics schedule produces premiums that look competitive and portfolios that are not.